/usr/share/scap-security-guide/ssg-sle11-xccdf.xml is in ssg-nondebian 0.1.31-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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<status date="2017-08-11">draft</status>
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Guide to the Secure Configuration of SUSE Linux Enterprise 11</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">This guide presents a catalog of security-relevant
configuration settings for SUSE Linux Enterprise 11. It is a rendering of
content structured in the eXtensible Configuration Checklist Description Format (XCCDF)
in order to support security automation. The SCAP content is
is available in the <html:code xmlns:html="http://www.w3.org/1999/xhtml">scap-security-guide</html:code> package which is developed at
<html:a xmlns:html="http://www.w3.org/1999/xhtml" href="https://www.open-scap.org/security-policies/scap-security-guide">https://www.open-scap.org/security-policies/scap-security-guide</html:a>.
<html:br xmlns:html="http://www.w3.org/1999/xhtml"/>
<html:br xmlns:html="http://www.w3.org/1999/xhtml"/>
Providing system administrators with such guidance informs them how to securely
configure systems under their control in a variety of network roles. Policy
makers and baseline creators can use this catalog of settings, with its
associated references to higher-level security control catalogs, in order to
assist them in security baseline creation. This guide is a <html:i xmlns:html="http://www.w3.org/1999/xhtml">catalog, not a
checklist,</html:i> and satisfaction of every item is not likely to be possible or
sensible in many operational scenarios. However, the XCCDF format enables
granular selection and adjustment of settings, and their association with OVAL
and OCIL content provides an automated checking capability. Transformations of
this document, and its associated automated checking content, are capable of
providing baselines that meet a diverse set of policy objectives. Some example
XCCDF <html:i xmlns:html="http://www.w3.org/1999/xhtml">Profiles</html:i>, which are selections of items that form checklists and
can be used as baselines, are available with this guide. They can be
processed, in an automated fashion, with tools that support the Security
Content Automation Protocol (SCAP). The DISA STIG for SUSE Linux Enterprise 11,
which provides required settings for US Department of Defense systems, is
one example of a baseline created from this guidance.
</description>
<notice xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US" id="terms_of_use">Do not attempt to implement any of the settings in
this guide without first testing them in a non-operational environment. The
creators of this guidance assume no responsibility whatsoever for its use by
other parties, and makes no guarantees, expressed or implied, about its
quality, reliability, or any other characteristic.</notice>
<front-matter xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">The SCAP Security Guide Project<html:br xmlns:html="http://www.w3.org/1999/xhtml"/>
<html:a xmlns:html="http://www.w3.org/1999/xhtml" href="https://www.open-scap.org/security-policies/scap-security-guide">https://www.open-scap.org/security-policies/scap-security-guide</html:a></front-matter>
<rear-matter xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Red Hat and Red Hat Enterprise Linux are either registered
trademarks or trademarks of Red Hat, Inc. in the United States and other
countries. All other names are registered trademarks or trademarks of their
respective companies.</rear-matter>
<platform idref="cpe:/o:suse:linux_enterprise_server:11"/>
<version update="https://github.com/OpenSCAP/scap-security-guide/releases/latest">0.1.31</version>
<metadata xmlns:xhtml="http://www.w3.org/1999/xhtml">
<dc:publisher xmlns:dc="http://purl.org/dc/elements/1.1/">SCAP Security Guide Project</dc:publisher>
<dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">SCAP Security Guide Project</dc:creator>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Gabe Alford <redhatrises@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Christopher Anderson <cba@fedoraproject.org></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Chuck Atkins <chuck.atkins@kitware.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Molly Jo Bault <Molly.Jo.Bault@ballardtech.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Joseph Bisch <joseph.bisch@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jeffrey Blank <blank@eclipse.ncsc.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Blake Burkhart <blake.burkhart@us.af.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Patrick Callahan <pmc@patrickcallahan.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Nick Carboni <ncarboni@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Frank Caviggia <fcaviggi@ra.iad.redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Eric Christensen <echriste@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Caleb Cooper <coopercd@ornl.gov></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Maura Dailey <maura@eclipse.ncsc.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Klaas Demter <demter@atix.de></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jean-Baptiste Donnette <jean-baptiste.donnette@epita.fr></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">drax <applezip@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Greg Elin <gregelin@gitmachines.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Andrew Gilmore <agilmore2@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Joshua Glemza <jglemza@nasa.gov></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Steve Grubb <sgrubb@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Trey Henefield <thenefield@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Robin Price II <robin@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jeremiah Jahn <jeremiah@goodinassociates.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Stephan Joerrens <Stephan.Joerrens@fiduciagad.de></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Yuli Khodorkovskiy <ykhodorkovskiy@tresys.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Luke Kordell <luke.t.kordell@lmco.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">kspargur <kspargur@kspargur.csb></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Fen Labalme <fen@civicactions.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jan Lieskovsky <jlieskov@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Šimon Lukašík <slukasik@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jamie Lorwey Martin <jlmartin@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Michael McConachie <michael@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Rodney Mercer <rmercer@harris.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Brian Millett <bmillett@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">mmosel <mmosel@kde.example.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Zbynek Moravec <zmoravec@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Kazuo Moriwaka <moriwaka@users.noreply.github.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Michael Moseley <michael@eclipse.ncsc.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Joe Nall <joe@nall.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Michele Newman <mnewman@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Kaustubh Padegaonkar <theTuxRacer@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Michael Palmiotto <mpalmiotto@tresys.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">pcactr <paul.c.arnold4.ctr@mail.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Kenneth Peeples <kennethwpeeples@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Frank Lin PIAT <fpiat@klabs.be></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Martin Preisler <mpreisle@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">T.O. Radzy Radzykewycz <radzy@windriver.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Rick Renshaw <Richard_Renshaw@xtoenergy.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Chris Reynolds <c.reynolds82@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Pat Riehecky <riehecky@fnal.gov></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Joshua Roys <roysjosh@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">rrenshaw <bofh69@yahoo.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Ray Shaw (Cont ARL/CISD) rvshaw <rvshaw@esme.arl.army.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Willy Santos <wsantos@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Gautam Satish <gautams@hpe.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Watson Sato <wsato@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Satoru SATOH <satoru.satoh@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Spencer Shimko <sshimko@tresys.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Francisco Slavin <fslavin@tresys.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">David Smith <dsmith@eclipse.ncsc.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Kevin Spargur <kspargur@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Kenneth Stailey <kstailey.lists@gmail.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Leland Steinke <leland.j.steinke.ctr@mail.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Philippe Thierry <phil@reseau-libre.net></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Paul Tittle <ptittle@cmf.nrl.navy.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jeb Trayer <jeb.d.trayer@uscg.mil></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Shawn Wells <shawn@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Rob Wilmoth <rwilmoth@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Lucas Yamanishi <lucas.yamanishi@onyxpoint.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Kevin Zimmerman <kevin.zimmerman@kitware.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Jan Černý <jcerny@redhat.com></dc:contributor>
<dc:contributor xmlns:dc="http://purl.org/dc/elements/1.1/">Michal Šrubař <msrubar@redhat.com></dc:contributor>
<dc:source xmlns:dc="http://purl.org/dc/elements/1.1/">https://github.com/OpenSCAP/scap-security-guide/releases/latest</dc:source>
</metadata>
<model system="urn:xccdf:scoring:default"/>
<Profile id="standard">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Standard System Security Profile</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">This profile contains rules to ensure standard security baseline of SUSE Linux Enterprise 11 system.
Regardless of your system's workload all of these checks should pass.</description>
<select idref="ensure_redhat_gpgkey_installed" selected="true"/>
<select idref="ensure_gpgcheck_globally_activated" selected="true"/>
<select idref="rpm_verify_permissions" selected="true"/>
<select idref="rpm_verify_hashes" selected="true"/>
<select idref="no_empty_passwords" selected="true"/>
<select idref="file_permissions_unauthorized_sgid" selected="true"/>
<select idref="file_permissions_unauthorized_suid" selected="true"/>
<select idref="file_permissions_unauthorized_world_writable" selected="true"/>
<select idref="accounts_root_path_dirs_no_write" selected="true"/>
<select idref="dir_perms_world_writable_sticky_bits" selected="true"/>
<select idref="remediation_functions" selected="false"/>
<select idref="intro" selected="false"/>
<select idref="general-principles" selected="false"/>
<select idref="principle-encrypt-transmitted-data" selected="false"/>
<select idref="principle-minimize-software" selected="false"/>
<select idref="principle-separate-servers" selected="false"/>
<select idref="principle-use-security-tools" selected="false"/>
<select idref="principle-least-privilege" selected="false"/>
<select idref="how-to-use" selected="false"/>
<select idref="intro-read-sections-completely" selected="false"/>
<select idref="intro-test-non-production" selected="false"/>
<select idref="intro-root-shell-assumed" selected="false"/>
<select idref="intro-formatting-conventions" selected="false"/>
<select idref="intro-reboot-required" selected="false"/>
<select idref="system" selected="false"/>
<select idref="permissions" selected="false"/>
<select idref="files" selected="false"/>
<select idref="permissions_important_account_files" selected="false"/>
</Profile>
<Profile id="common">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Common Profile for General-Purpose Systems</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">This profile contains items common to general-purpose desktop and server installations.</description>
<select idref="partition_for_tmp" selected="true"/>
<select idref="partition_for_var" selected="true"/>
<select idref="partition_for_var_log" selected="true"/>
<select idref="partition_for_var_log_audit" selected="true"/>
<select idref="partition_for_home" selected="true"/>
<select idref="ensure_redhat_gpgkey_installed" selected="true"/>
<select idref="service_rhnsd_disabled" selected="true"/>
<select idref="security_patches_up_to_date" selected="true"/>
<select idref="ensure_gpgcheck_globally_activated" selected="true"/>
<select idref="ensure_gpgcheck_never_disabled" selected="true"/>
<select idref="package_aide_installed" selected="true"/>
<select idref="enable_selinux_bootloader" selected="true"/>
<select idref="no_rsh_trust_files" selected="true"/>
<select idref="selinux_state" selected="true"/>
<select idref="selinux_policytype" selected="true"/>
<select idref="selinux_all_devicefiles_labeled" selected="true"/>
<select idref="securetty_root_login_console_only" selected="true"/>
<select idref="restrict_serial_port_logins" selected="true"/>
<select idref="no_shelllogin_for_systemaccounts" selected="true"/>
<select idref="no_empty_passwords" selected="true"/>
<select idref="accounts_password_all_shadowed" selected="true"/>
<select idref="accounts_no_uid_except_zero" selected="true"/>
<select idref="userowner_shadow_file" selected="true"/>
<select idref="groupowner_shadow_file" selected="true"/>
<select idref="file_permissions_etc_shadow" selected="true"/>
<select idref="file_owner_etc_gshadow" selected="true"/>
<select idref="file_groupowner_etc_gshadow" selected="true"/>
<select idref="file_permissions_etc_gshadow" selected="true"/>
<select idref="file_owner_etc_passwd" selected="true"/>
<select idref="file_groupowner_etc_passwd" selected="true"/>
<select idref="file_permissions_etc_passwd" selected="true"/>
<select idref="file_owner_etc_group" selected="true"/>
<select idref="file_groupowner_etc_group" selected="true"/>
<select idref="file_permissions_etc_group" selected="true"/>
<select idref="file_permissions_library_dirs" selected="true"/>
<select idref="file_ownership_library_dirs" selected="true"/>
<select idref="file_permissions_binary_dirs" selected="true"/>
<select idref="file_ownership_binary_dirs" selected="true"/>
<select idref="file_permissions_var_log_audit" selected="true"/>
<select idref="accounts_password_minlen_login_defs" selected="true"/>
<select idref="accounts_minimum_age_login_defs" selected="true"/>
<select idref="accounts_maximum_age_login_defs" selected="true"/>
<select idref="accounts_password_warn_age_login_defs" selected="true"/>
<select idref="accounts_password_pam_retry" selected="true"/>
<select idref="accounts_password_pam_dcredit" selected="true"/>
<select idref="accounts_password_pam_ucredit" selected="true"/>
<select idref="accounts_password_pam_ocredit" selected="true"/>
<select idref="accounts_password_pam_lcredit" selected="true"/>
<select idref="accounts_password_pam_difok" selected="true"/>
<select idref="accounts_passwords_pam_faillock_deny" selected="true"/>
<select idref="set_password_hashing_algorithm_systemauth" selected="true"/>
<select idref="set_password_hashing_algorithm_logindefs" selected="true"/>
<select idref="set_password_hashing_algorithm_libuserconf" selected="true"/>
<select idref="file_user_owner_grub_conf" selected="true"/>
<select idref="file_group_owner_grub_conf" selected="true"/>
<select idref="file_permissions_grub_conf" selected="true"/>
<select idref="bootloader_password" selected="true"/>
<select idref="require_singleuser_auth" selected="true"/>
<select idref="disable_interactive_boot" selected="true"/>
<select idref="package_screen_installed" selected="true"/>
<select idref="banner_etc_issue" selected="true"/>
<select idref="sysctl_kernel_randomize_va_space" selected="true"/>
<select idref="sysctl_kernel_exec_shield" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_send_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_send_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_ip_forward" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_accept_source_route" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_accept_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_secure_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_log_martians" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_accept_source_route" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_secure_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_accept_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_icmp_echo_ignore_broadcasts" selected="true"/>
<select idref="sysctl_net_ipv4_icmp_ignore_bogus_error_responses" selected="true"/>
<select idref="sysctl_net_ipv4_tcp_syncookies" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_rp_filter" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_rp_filter" selected="true"/>
<select idref="kernel_module_ipv6_option_disabled" selected="true"/>
<select idref="sysctl_net_ipv6_conf_default_accept_redirects" selected="true"/>
<select idref="service_ip6tables_enabled" selected="true"/>
<select idref="service_iptables_enabled" selected="true"/>
<select idref="set_iptables_default_rule" selected="true"/>
<select idref="set_ip6tables_default_rule" selected="true"/>
<select idref="kernel_module_dccp_disabled" selected="true"/>
<select idref="kernel_module_sctp_disabled" selected="true"/>
<select idref="kernel_module_rds_disabled" selected="true"/>
<select idref="kernel_module_tipc_disabled" selected="true"/>
<select idref="package_rsyslog_installed" selected="true"/>
<select idref="service_rsyslog_enabled" selected="true"/>
<select idref="rsyslog_files_ownership" selected="true"/>
<select idref="rsyslog_files_groupownership" selected="true"/>
<select idref="rsyslog_files_permissions" selected="true"/>
<select idref="rsyslog_remote_loghost" selected="true"/>
<select idref="ensure_logrotate_activated" selected="true"/>
<select idref="service_auditd_enabled" selected="true"/>
<select idref="bootloader_audit_argument" selected="true"/>
<select idref="auditd_data_retention_num_logs" selected="true"/>
<select idref="auditd_data_retention_max_log_file" selected="true"/>
<select idref="auditd_data_retention_max_log_file_action" selected="true"/>
<select idref="auditd_data_retention_admin_space_left_action" selected="true"/>
<select idref="audit_rules_time_adjtimex" selected="true"/>
<select idref="audit_rules_time_settimeofday" selected="true"/>
<select idref="audit_rules_time_stime" selected="true"/>
<select idref="audit_rules_time_clock_settime" selected="true"/>
<select idref="audit_rules_time_watch_localtime" selected="true"/>
<select idref="audit_rules_usergroup_modification" selected="true"/>
<select idref="audit_rules_networkconfig_modification" selected="true"/>
<select idref="audit_rules_mac_modification" selected="true"/>
<select idref="audit_rules_dac_modification_chmod" selected="true"/>
<select idref="audit_rules_dac_modification_chown" selected="true"/>
<select idref="audit_rules_dac_modification_fchmod" selected="true"/>
<select idref="audit_rules_dac_modification_fchmodat" selected="true"/>
<select idref="audit_rules_dac_modification_fchown" selected="true"/>
<select idref="audit_rules_dac_modification_fchownat" selected="true"/>
<select idref="audit_rules_dac_modification_fremovexattr" selected="true"/>
<select idref="audit_rules_dac_modification_fsetxattr" selected="true"/>
<select idref="audit_rules_dac_modification_lchown" selected="true"/>
<select idref="audit_rules_dac_modification_lremovexattr" selected="true"/>
<select idref="audit_rules_dac_modification_lsetxattr" selected="true"/>
<select idref="audit_rules_dac_modification_removexattr" selected="true"/>
<select idref="audit_rules_dac_modification_setxattr" selected="true"/>
<select idref="audit_rules_unsuccessful_file_modification" selected="true"/>
<select idref="audit_rules_privileged_commands" selected="true"/>
<select idref="audit_rules_media_export" selected="true"/>
<select idref="audit_rules_file_deletion_events" selected="true"/>
<select idref="audit_rules_sysadmin_actions" selected="true"/>
<select idref="audit_rules_kernel_module_loading" selected="true"/>
<select idref="service_xinetd_disabled" selected="true"/>
<select idref="package_xinetd_removed" selected="true"/>
<select idref="package_telnet-server_removed" selected="true"/>
<select idref="service_telnetd_disabled" selected="true"/>
<select idref="package_rsh-server_removed" selected="true"/>
<select idref="service_rsh_disabled" selected="true"/>
<select idref="service_rexec_disabled" selected="true"/>
<select idref="service_rlogin_disabled" selected="true"/>
<select idref="package_ypserv_removed" selected="true"/>
<select idref="service_ypbind_disabled" selected="true"/>
<select idref="package_tftp-server_removed" selected="true"/>
<select idref="service_tftp_disabled" selected="true"/>
<select idref="service_crond_enabled" selected="true"/>
<select idref="sshd_allow_only_protocol2" selected="true"/>
<select idref="sshd_set_idle_timeout" selected="true"/>
<select idref="sshd_set_keepalive" selected="true"/>
<select idref="sshd_disable_rhosts" selected="true"/>
<select idref="disable_host_auth" selected="true"/>
<select idref="sshd_disable_root_login" selected="true"/>
<select idref="sshd_disable_empty_passwords" selected="true"/>
<select idref="sshd_enable_warning_banner" selected="true"/>
<select idref="sshd_do_not_permit_user_env" selected="true"/>
<select idref="sshd_use_approved_ciphers" selected="true"/>
<select idref="service_avahi-daemon_disabled" selected="true"/>
<select idref="service_ntpd_enabled" selected="true"/>
<select idref="ntpd_specify_remote_server" selected="true"/>
<select idref="postfix_network_listening_disabled" selected="true"/>
<select idref="ldap_client_start_tls" selected="true"/>
<select idref="ldap_client_tls_cacertpath" selected="true"/>
<select idref="package_openldap-servers_removed" selected="true"/>
<select idref="gconf_gnome_screensaver_idle_delay" selected="true"/>
<select idref="accounts_tmout" selected="true"/>
<select idref="gconf_gnome_screensaver_idle_activation_enabled" selected="true"/>
<select idref="gconf_gnome_screensaver_lock_enabled" selected="true"/>
<select idref="gconf_gnome_screensaver_mode_blank" selected="true"/>
<select idref="service_abrtd_disabled" selected="true"/>
<select idref="service_atd_disabled" selected="true"/>
<select idref="service_autofs_disabled" selected="true"/>
<select idref="service_ntpdate_disabled" selected="true"/>
<select idref="service_oddjobd_disabled" selected="true"/>
<select idref="service_qpidd_disabled" selected="true"/>
<select idref="service_rdisc_disabled" selected="true"/>
<select idref="mount_option_nodev_remote_filesystems" selected="true"/>
<select idref="mount_option_nosuid_remote_filesystems" selected="true"/>
<select idref="mount_option_noexec_removable_partitions" selected="true"/>
<select idref="require_smb_client_signing" selected="true"/>
<select idref="mount_option_smb_client_signing" selected="true"/>
<select idref="accounts_password_pam_unix_remember" selected="true"/>
<select idref="remediation_functions" selected="false"/>
<select idref="intro" selected="false"/>
<select idref="general-principles" selected="false"/>
<select idref="principle-encrypt-transmitted-data" selected="false"/>
<select idref="principle-minimize-software" selected="false"/>
<select idref="principle-separate-servers" selected="false"/>
<select idref="principle-use-security-tools" selected="false"/>
<select idref="principle-least-privilege" selected="false"/>
<select idref="how-to-use" selected="false"/>
<select idref="intro-read-sections-completely" selected="false"/>
<select idref="intro-test-non-production" selected="false"/>
<select idref="intro-root-shell-assumed" selected="false"/>
<select idref="intro-formatting-conventions" selected="false"/>
<select idref="intro-reboot-required" selected="false"/>
<refine-value idref="inactivity_timeout_value" selector="15_minutes"/>
<refine-value idref="var_accounts_tmout" selector="10_min"/>
<refine-value idref="var_umask_for_daemons" selector="027"/>
<refine-value idref="var_accounts_password_minlen_login_defs" selector="14"/>
<refine-value idref="var_accounts_maximum_age_login_defs" selector="90"/>
<refine-value idref="var_accounts_minimum_age_login_defs" selector="7"/>
<refine-value idref="var_accounts_password_warn_age_login_defs" selector="7"/>
<refine-value idref="var_password_pam_retry" selector="3"/>
<refine-value idref="var_password_pam_minlen" selector="14"/>
<refine-value idref="var_password_pam_dcredit" selector="1"/>
<refine-value idref="var_password_pam_ucredit" selector="2"/>
<refine-value idref="var_password_pam_ocredit" selector="2"/>
<refine-value idref="var_password_pam_lcredit" selector="2"/>
<refine-value idref="var_password_pam_difok" selector="3"/>
<refine-value idref="var_password_pam_unix_remember" selector="5"/>
<refine-value idref="var_accounts_user_umask" selector="077"/>
<refine-value idref="login_banner_text" selector="usgcb_default"/>
<refine-value idref="var_selinux_state" selector="enforcing"/>
<refine-value idref="var_selinux_policy_name" selector="targeted"/>
<refine-value idref="var_auditd_num_logs" selector="5"/>
<refine-value idref="var_auditd_max_log_file" selector="6"/>
<refine-value idref="var_auditd_max_log_file_action" selector="rotate"/>
<refine-value idref="var_auditd_admin_space_left_action" selector="single"/>
<refine-value idref="sysctl_net_ipv4_conf_all_accept_source_route_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_accept_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_secure_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_log_martians_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_accept_source_route_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_accept_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_secure_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_icmp_echo_ignore_broadcasts_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_icmp_ignore_bogus_error_messages_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_tcp_syncookies_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_rp_filter_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_rp_filter_value" selector="enabled"/>
<refine-value idref="file_owner_logfiles_value" selector="root"/>
<refine-value idref="file_groupowner_logfiles_value" selector="root"/>
<refine-value idref="sshd_idle_timeout_value" selector="5_minutes"/>
</Profile>
<Profile id="server">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US" override="true">Server Baseline</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US" override="true">This profile is for SUSE Enterprise Linux 11 acting as a server.</description>
<select idref="partition_for_tmp" selected="true"/>
<select idref="partition_for_var" selected="true"/>
<select idref="partition_for_var_log" selected="true"/>
<select idref="partition_for_var_log_audit" selected="true"/>
<select idref="partition_for_home" selected="true"/>
<select idref="ensure_redhat_gpgkey_installed" selected="true"/>
<select idref="service_rhnsd_disabled" selected="true"/>
<select idref="security_patches_up_to_date" selected="true"/>
<select idref="ensure_gpgcheck_globally_activated" selected="true"/>
<select idref="ensure_gpgcheck_never_disabled" selected="true"/>
<select idref="package_aide_installed" selected="true"/>
<select idref="enable_selinux_bootloader" selected="true"/>
<select idref="no_rsh_trust_files" selected="true"/>
<select idref="selinux_state" selected="true"/>
<select idref="selinux_policytype" selected="true"/>
<select idref="selinux_all_devicefiles_labeled" selected="true"/>
<select idref="securetty_root_login_console_only" selected="true"/>
<select idref="restrict_serial_port_logins" selected="true"/>
<select idref="no_shelllogin_for_systemaccounts" selected="true"/>
<select idref="no_empty_passwords" selected="true"/>
<select idref="accounts_password_all_shadowed" selected="true"/>
<select idref="accounts_no_uid_except_zero" selected="true"/>
<select idref="userowner_shadow_file" selected="true"/>
<select idref="groupowner_shadow_file" selected="true"/>
<select idref="file_permissions_etc_shadow" selected="true"/>
<select idref="file_owner_etc_gshadow" selected="true"/>
<select idref="file_groupowner_etc_gshadow" selected="true"/>
<select idref="file_permissions_etc_gshadow" selected="true"/>
<select idref="file_owner_etc_passwd" selected="true"/>
<select idref="file_groupowner_etc_passwd" selected="true"/>
<select idref="file_permissions_etc_passwd" selected="true"/>
<select idref="file_owner_etc_group" selected="true"/>
<select idref="file_groupowner_etc_group" selected="true"/>
<select idref="file_permissions_etc_group" selected="true"/>
<select idref="file_permissions_library_dirs" selected="true"/>
<select idref="file_ownership_library_dirs" selected="true"/>
<select idref="file_permissions_binary_dirs" selected="true"/>
<select idref="file_ownership_binary_dirs" selected="true"/>
<select idref="file_permissions_var_log_audit" selected="true"/>
<select idref="accounts_password_minlen_login_defs" selected="true"/>
<select idref="accounts_minimum_age_login_defs" selected="true"/>
<select idref="accounts_maximum_age_login_defs" selected="true"/>
<select idref="accounts_password_warn_age_login_defs" selected="true"/>
<select idref="accounts_password_pam_retry" selected="true"/>
<select idref="accounts_password_pam_dcredit" selected="true"/>
<select idref="accounts_password_pam_ucredit" selected="true"/>
<select idref="accounts_password_pam_ocredit" selected="true"/>
<select idref="accounts_password_pam_lcredit" selected="true"/>
<select idref="accounts_password_pam_difok" selected="true"/>
<select idref="accounts_passwords_pam_faillock_deny" selected="true"/>
<select idref="set_password_hashing_algorithm_systemauth" selected="true"/>
<select idref="set_password_hashing_algorithm_logindefs" selected="true"/>
<select idref="set_password_hashing_algorithm_libuserconf" selected="true"/>
<select idref="file_user_owner_grub_conf" selected="true"/>
<select idref="file_group_owner_grub_conf" selected="true"/>
<select idref="file_permissions_grub_conf" selected="true"/>
<select idref="bootloader_password" selected="true"/>
<select idref="require_singleuser_auth" selected="true"/>
<select idref="disable_interactive_boot" selected="true"/>
<select idref="package_screen_installed" selected="true"/>
<select idref="banner_etc_issue" selected="true"/>
<select idref="sysctl_kernel_randomize_va_space" selected="true"/>
<select idref="sysctl_kernel_exec_shield" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_send_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_send_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_ip_forward" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_accept_source_route" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_accept_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_secure_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_log_martians" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_accept_source_route" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_secure_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_accept_redirects" selected="true"/>
<select idref="sysctl_net_ipv4_icmp_echo_ignore_broadcasts" selected="true"/>
<select idref="sysctl_net_ipv4_icmp_ignore_bogus_error_responses" selected="true"/>
<select idref="sysctl_net_ipv4_tcp_syncookies" selected="true"/>
<select idref="sysctl_net_ipv4_conf_all_rp_filter" selected="true"/>
<select idref="sysctl_net_ipv4_conf_default_rp_filter" selected="true"/>
<select idref="kernel_module_ipv6_option_disabled" selected="true"/>
<select idref="sysctl_net_ipv6_conf_default_accept_redirects" selected="true"/>
<select idref="service_ip6tables_enabled" selected="true"/>
<select idref="service_iptables_enabled" selected="true"/>
<select idref="set_iptables_default_rule" selected="true"/>
<select idref="set_ip6tables_default_rule" selected="true"/>
<select idref="kernel_module_dccp_disabled" selected="true"/>
<select idref="kernel_module_sctp_disabled" selected="true"/>
<select idref="kernel_module_rds_disabled" selected="true"/>
<select idref="kernel_module_tipc_disabled" selected="true"/>
<select idref="package_rsyslog_installed" selected="true"/>
<select idref="service_rsyslog_enabled" selected="true"/>
<select idref="rsyslog_files_ownership" selected="true"/>
<select idref="rsyslog_files_groupownership" selected="true"/>
<select idref="rsyslog_files_permissions" selected="true"/>
<select idref="rsyslog_remote_loghost" selected="true"/>
<select idref="ensure_logrotate_activated" selected="true"/>
<select idref="service_auditd_enabled" selected="true"/>
<select idref="bootloader_audit_argument" selected="true"/>
<select idref="auditd_data_retention_num_logs" selected="true"/>
<select idref="auditd_data_retention_max_log_file" selected="true"/>
<select idref="auditd_data_retention_max_log_file_action" selected="true"/>
<select idref="auditd_data_retention_admin_space_left_action" selected="true"/>
<select idref="audit_rules_time_adjtimex" selected="true"/>
<select idref="audit_rules_time_settimeofday" selected="true"/>
<select idref="audit_rules_time_stime" selected="true"/>
<select idref="audit_rules_time_clock_settime" selected="true"/>
<select idref="audit_rules_time_watch_localtime" selected="true"/>
<select idref="audit_rules_usergroup_modification" selected="true"/>
<select idref="audit_rules_networkconfig_modification" selected="true"/>
<select idref="audit_rules_mac_modification" selected="true"/>
<select idref="audit_rules_dac_modification_chmod" selected="true"/>
<select idref="audit_rules_dac_modification_chown" selected="true"/>
<select idref="audit_rules_dac_modification_fchmod" selected="true"/>
<select idref="audit_rules_dac_modification_fchmodat" selected="true"/>
<select idref="audit_rules_dac_modification_fchown" selected="true"/>
<select idref="audit_rules_dac_modification_fchownat" selected="true"/>
<select idref="audit_rules_dac_modification_fremovexattr" selected="true"/>
<select idref="audit_rules_dac_modification_fsetxattr" selected="true"/>
<select idref="audit_rules_dac_modification_lchown" selected="true"/>
<select idref="audit_rules_dac_modification_lremovexattr" selected="true"/>
<select idref="audit_rules_dac_modification_lsetxattr" selected="true"/>
<select idref="audit_rules_dac_modification_removexattr" selected="true"/>
<select idref="audit_rules_dac_modification_setxattr" selected="true"/>
<select idref="audit_rules_unsuccessful_file_modification" selected="true"/>
<select idref="audit_rules_privileged_commands" selected="true"/>
<select idref="audit_rules_media_export" selected="true"/>
<select idref="audit_rules_file_deletion_events" selected="true"/>
<select idref="audit_rules_sysadmin_actions" selected="true"/>
<select idref="audit_rules_kernel_module_loading" selected="true"/>
<select idref="service_xinetd_disabled" selected="true"/>
<select idref="package_xinetd_removed" selected="true"/>
<select idref="package_telnet-server_removed" selected="true"/>
<select idref="service_telnetd_disabled" selected="true"/>
<select idref="package_rsh-server_removed" selected="true"/>
<select idref="service_rsh_disabled" selected="true"/>
<select idref="service_rexec_disabled" selected="true"/>
<select idref="service_rlogin_disabled" selected="true"/>
<select idref="package_ypserv_removed" selected="true"/>
<select idref="service_ypbind_disabled" selected="true"/>
<select idref="package_tftp-server_removed" selected="true"/>
<select idref="service_tftp_disabled" selected="true"/>
<select idref="service_crond_enabled" selected="true"/>
<select idref="sshd_allow_only_protocol2" selected="true"/>
<select idref="sshd_set_idle_timeout" selected="true"/>
<select idref="sshd_set_keepalive" selected="true"/>
<select idref="sshd_disable_rhosts" selected="true"/>
<select idref="disable_host_auth" selected="true"/>
<select idref="sshd_disable_root_login" selected="true"/>
<select idref="sshd_disable_empty_passwords" selected="true"/>
<select idref="sshd_enable_warning_banner" selected="true"/>
<select idref="sshd_do_not_permit_user_env" selected="true"/>
<select idref="sshd_use_approved_ciphers" selected="true"/>
<select idref="service_avahi-daemon_disabled" selected="true"/>
<select idref="service_ntpd_enabled" selected="true"/>
<select idref="ntpd_specify_remote_server" selected="true"/>
<select idref="postfix_network_listening_disabled" selected="true"/>
<select idref="ldap_client_start_tls" selected="true"/>
<select idref="ldap_client_tls_cacertpath" selected="true"/>
<select idref="package_openldap-servers_removed" selected="true"/>
<select idref="gconf_gnome_screensaver_idle_delay" selected="true"/>
<select idref="accounts_tmout" selected="true"/>
<select idref="gconf_gnome_screensaver_idle_activation_enabled" selected="true"/>
<select idref="gconf_gnome_screensaver_lock_enabled" selected="true"/>
<select idref="gconf_gnome_screensaver_mode_blank" selected="true"/>
<select idref="service_abrtd_disabled" selected="true"/>
<select idref="service_atd_disabled" selected="true"/>
<select idref="service_autofs_disabled" selected="true"/>
<select idref="service_ntpdate_disabled" selected="true"/>
<select idref="service_oddjobd_disabled" selected="true"/>
<select idref="service_qpidd_disabled" selected="true"/>
<select idref="service_rdisc_disabled" selected="true"/>
<select idref="mount_option_nodev_remote_filesystems" selected="true"/>
<select idref="mount_option_nosuid_remote_filesystems" selected="true"/>
<select idref="mount_option_noexec_removable_partitions" selected="true"/>
<select idref="require_smb_client_signing" selected="true"/>
<select idref="mount_option_smb_client_signing" selected="true"/>
<select idref="accounts_password_pam_unix_remember" selected="true"/>
<select idref="wireless_disable_interfaces" selected="true"/>
<select idref="xwindows_runlevel_setting" selected="true"/>
<select idref="package_xorg-x11-server-common_removed" selected="true"/>
<select idref="sysconfig_networking_bootproto_ifcfg" selected="true"/>
<select idref="remediation_functions" selected="false"/>
<select idref="intro" selected="false"/>
<select idref="general-principles" selected="false"/>
<select idref="principle-encrypt-transmitted-data" selected="false"/>
<select idref="principle-minimize-software" selected="false"/>
<select idref="principle-separate-servers" selected="false"/>
<select idref="principle-use-security-tools" selected="false"/>
<select idref="principle-least-privilege" selected="false"/>
<select idref="how-to-use" selected="false"/>
<select idref="intro-read-sections-completely" selected="false"/>
<select idref="intro-test-non-production" selected="false"/>
<select idref="intro-root-shell-assumed" selected="false"/>
<select idref="intro-formatting-conventions" selected="false"/>
<select idref="intro-reboot-required" selected="false"/>
<refine-value idref="inactivity_timeout_value" selector="15_minutes"/>
<refine-value idref="var_accounts_tmout" selector="10_min"/>
<refine-value idref="var_umask_for_daemons" selector="027"/>
<refine-value idref="var_accounts_password_minlen_login_defs" selector="14"/>
<refine-value idref="var_accounts_maximum_age_login_defs" selector="90"/>
<refine-value idref="var_accounts_minimum_age_login_defs" selector="7"/>
<refine-value idref="var_accounts_password_warn_age_login_defs" selector="7"/>
<refine-value idref="var_password_pam_retry" selector="3"/>
<refine-value idref="var_password_pam_minlen" selector="14"/>
<refine-value idref="var_password_pam_dcredit" selector="1"/>
<refine-value idref="var_password_pam_ucredit" selector="2"/>
<refine-value idref="var_password_pam_ocredit" selector="2"/>
<refine-value idref="var_password_pam_lcredit" selector="2"/>
<refine-value idref="var_password_pam_difok" selector="3"/>
<refine-value idref="var_password_pam_unix_remember" selector="5"/>
<refine-value idref="var_accounts_user_umask" selector="077"/>
<refine-value idref="login_banner_text" selector="usgcb_default"/>
<refine-value idref="var_selinux_state" selector="enforcing"/>
<refine-value idref="var_selinux_policy_name" selector="targeted"/>
<refine-value idref="var_auditd_num_logs" selector="5"/>
<refine-value idref="var_auditd_max_log_file" selector="6"/>
<refine-value idref="var_auditd_max_log_file_action" selector="rotate"/>
<refine-value idref="var_auditd_admin_space_left_action" selector="single"/>
<refine-value idref="sysctl_net_ipv4_conf_all_accept_source_route_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_accept_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_secure_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_log_martians_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_accept_source_route_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_accept_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_secure_redirects_value" selector="disabled"/>
<refine-value idref="sysctl_net_ipv4_icmp_echo_ignore_broadcasts_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_icmp_ignore_bogus_error_messages_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_tcp_syncookies_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_conf_all_rp_filter_value" selector="enabled"/>
<refine-value idref="sysctl_net_ipv4_conf_default_rp_filter_value" selector="enabled"/>
<refine-value idref="file_owner_logfiles_value" selector="root"/>
<refine-value idref="file_groupowner_logfiles_value" selector="root"/>
<refine-value idref="sshd_idle_timeout_value" selector="5_minutes"/>
</Profile>
<Group id="remediation_functions">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation functions used by the SCAP Security Guide Project</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">XCCDF form of the various remediation functions as used by
remediation scripts from the SCAP Security Guide Project</description>
<Value id="function_fix_audit_syscall_rule" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to fix syscall audit rule for given system call</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to fix syscall audit rule for given system call. It is
based on example audit syscall rule definitions as outlined in
/usr/share/doc/audit-2.3.7/stig.rules file provided with the audit package. It
will combine multiple system calls belonging to the same syscall group into one
audit rule (rather than to create audit rule per different system call) to
avoid audit infrastructure performance penalty in the case of
'one-audit-rule-definition-per-one-system-call'. See:
https://www.redhat.com/archives/linux-audit/2014-November/msg00009.html
for further details.
Expects five arguments (each of them is required) in the form of:
* audit tool tool used to load audit rules,
either 'auditctl', or 'augenrules
* audit rules' pattern audit rule skeleton for same syscall
* syscall group greatest common string this rule shares
with other rules from the same group
* architecture architecture this rule is intended for
* full form of new rule to add expected full form of audit rule as to
be added into audit.rules file
Note: The 2-th up to 4-th arguments are used to determine how many existing
audit rules will be inspected for resemblance with the new audit rule
(5-th argument) the function is going to add. The rule's similarity check
is performed to optimize audit.rules definition (merge syscalls of the same
group into one rule) to avoid the "single-syscall-per-audit-rule" performance
penalty.
Example call:
PATTERN="-a always,exit -F arch=$ARCH -S .* -F auid>=500 -F auid!=4294967295 -k delete"
# Use escaped BRE regex to specify rule group
GROUP="\(rmdir\|unlink\|rename\)"
FULL_RULE="-a always,exit -F arch=$ARCH -S rmdir -S unlink -S unlinkat -S rename -S renameat -F auid>=500 -F auid!=4294967295 -k delete"
fix_audit_syscall_rule "auditctl" "$PATTERN" "$GROUP" "$ARCH" "$FULL_RULE"
</description>
<value>
function fix_audit_syscall_rule {
# Load function arguments into local variables
local tool="$1"
local pattern="$2"
local group="$3"
local arch="$4"
local full_rule="$5"
# Check sanity of the input
if [ $# -ne "5" ]
then
echo "Usage: fix_audit_syscall_rule 'tool' 'pattern' 'group' 'arch' 'full rule'"
echo "Aborting."
exit 1
fi
# Create a list of audit *.rules files that should be inspected for presence and correctness
# of a particular audit rule. The scheme is as follows:
#
# -----------------------------------------------------------------------------------------
# Tool used to load audit rules | Rule already defined | Audit rules file to inspect |
# -----------------------------------------------------------------------------------------
# auditctl | Doesn't matter | /etc/audit/audit.rules |
# -----------------------------------------------------------------------------------------
# augenrules | Yes | /etc/audit/rules.d/*.rules |
# augenrules | No | /etc/audit/rules.d/$key.rules |
# -----------------------------------------------------------------------------------------
#
declare -a files_to_inspect
# First check sanity of the specified audit tool
if [ "$tool" != 'auditctl' ] && [ "$tool" != 'augenrules' ]
then
echo "Unknown audit rules loading tool: $1. Aborting."
echo "Use either 'auditctl' or 'augenrules'!"
exit 1
# If audit tool is 'auditctl', then add '/etc/audit/audit.rules'
# file to the list of files to be inspected
elif [ "$tool" == 'auditctl' ]
then
files_to_inspect=("${files_to_inspect[@]}" '/etc/audit/audit.rules' )
# If audit tool is 'augenrules', then check if the audit rule is defined
# If rule is defined, add '/etc/audit/rules.d/*.rules' to the list for inspection
# If rule isn't defined yet, add '/etc/audit/rules.d/$key.rules' to the list for inspection
elif [ "$tool" == 'augenrules' ]
then
# Extract audit $key from audit rule so we can use it later
key=$(expr "$full_rule" : '.*-k[[:space:]]\([^[:space:]]\+\)')
# Check if particular audit rule is already defined
IFS=$'\n' matches=($(sed -s -n -e "/${pattern}/!d" -e "/${arch}/!d" -e "/${group}/!d;F" /etc/audit/rules.d/*.rules))
# Reset IFS back to default
unset $IFS
for match in "${matches[@]}"
do
files_to_inspect=("${files_to_inspect[@]}" "${match}")
done
# Case when particular rule isn't defined in /etc/audit/rules.d/*.rules yet
if [ ${#files_to_inspect[@]} -eq "0" ]
then
files_to_inspect="/etc/audit/rules.d/$key.rules"
if [ ! -e "$files_to_inspect" ]
then
touch "$files_to_inspect"
chmod 0640 "$files_to_inspect"
fi
fi
fi
#
# Indicator that we want to append $full_rule into $audit_file by default
local append_expected_rule=0
for audit_file in "${files_to_inspect[@]}"
do
# Filter existing $audit_file rules' definitions to select those that:
# * follow the rule pattern, and
# * meet the hardware architecture requirement, and
# * are current syscall group specific
IFS=$'\n' existing_rules=($(sed -e "/${pattern}/!d" -e "/${arch}/!d" -e "/${group}/!d" "$audit_file"))
# Reset IFS back to default
unset $IFS
# Process rules found case-by-case
for rule in "${existing_rules[@]}"
do
# Found rule is for same arch & key, but differs (e.g. in count of -S arguments)
if [ "${rule}" != "${full_rule}" ]
then
# If so, isolate just '(-S \w)+' substring of that rule
rule_syscalls=$(echo $rule | grep -o -P '(-S \w+ )+')
# Check if list of '-S syscall' arguments of that rule is subset
# of '-S syscall' list of expected $full_rule
if grep -q -- "$rule_syscalls" <<< "$full_rule"
then
# Rule is covered (i.e. the list of -S syscalls for this rule is
# subset of -S syscalls of $full_rule => existing rule can be deleted
# Thus delete the rule from audit.rules & our array
sed -i -e "/$rule/d" "$audit_file"
existing_rules=("${existing_rules[@]//$rule/}")
else
# Rule isn't covered by $full_rule - it besides -S syscall arguments
# for this group contains also -S syscall arguments for other syscall
# group. Example: '-S lchown -S fchmod -S fchownat' => group='chown'
# since 'lchown' & 'fchownat' share 'chown' substring
# Therefore:
# * 1) delete the original rule from audit.rules
# (original '-S lchown -S fchmod -S fchownat' rule would be deleted)
# * 2) delete the -S syscall arguments for this syscall group, but
# keep those not belonging to this syscall group
# (original '-S lchown -S fchmod -S fchownat' would become '-S fchmod'
# * 3) append the modified (filtered) rule again into audit.rules
# if the same rule not already present
#
# 1) Delete the original rule
sed -i -e "/$rule/d" "$audit_file"
# 2) Delete syscalls for this group, but keep those from other groups
# Convert current rule syscall's string into array splitting by '-S' delimiter
IFS=$'-S' read -a rule_syscalls_as_array <<< "$rule_syscalls"
# Reset IFS back to default
unset $IFS
# Declare new empty string to hold '-S syscall' arguments from other groups
new_syscalls_for_rule=''
# Walk through existing '-S syscall' arguments
for syscall_arg in "${rule_syscalls_as_array[@]}"
do
# Skip empty $syscall_arg values
if [ "$syscall_arg" == '' ]
then
continue
fi
# If the '-S syscall' doesn't belong to current group add it to the new list
# (together with adding '-S' delimiter back for each of such item found)
if grep -q -v -- "$group" <<< "$syscall_arg"
then
new_syscalls_for_rule="$new_syscalls_for_rule -S $syscall_arg"
fi
done
# Replace original '-S syscall' list with the new one for this rule
updated_rule=${rule//$rule_syscalls/$new_syscalls_for_rule}
# Squeeze repeated whitespace characters in rule definition (if any) into one
updated_rule=$(echo "$updated_rule" | tr -s '[:space:]')
# 3) Append the modified / filtered rule again into audit.rules
# (but only in case it's not present yet to prevent duplicate definitions)
if ! grep -q -- "$updated_rule" "$audit_file"
then
echo "$updated_rule" >> "$audit_file"
fi
fi
else
# $audit_file already contains the expected rule form for this
# architecture & key => don't insert it second time
append_expected_rule=1
fi
done
# We deleted all rules that were subset of the expected one for this arch & key.
# Also isolated rules containing system calls not from this system calls group.
# Now append the expected rule if it's not present in $audit_file yet
if [[ ${append_expected_rule} -eq "0" ]]
then
echo "$full_rule" >> "$audit_file"
fi
done
}
</value>
</Value>
<Value id="function_fix_audit_watch_rule" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to fix audit file system object watch rule for given path</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to fix audit file system object watch rule for given path:
* if rule exists, also verifies the -w bits match the requirements
* if rule doesn't exist yet, appends expected rule form to $files_to_inspect
audit rules file, depending on the tool which was used to load audit rules
Expects four arguments (each of them is required) in the form of:
* audit tool tool used to load audit rules,
either 'auditctl', or 'augenrules'
* path value of -w audit rule's argument
* required access bits value of -p audit rule's argument
* key value of -k audit rule's argument
Example call:
fix_audit_watch_rule "auditctl" "/etc/localtime" "wa" "audit_time_rules"
</description>
<value>
function fix_audit_watch_rule {
# Load function arguments into local variables
local tool="$1"
local path="$2"
local required_access_bits="$3"
local key="$4"
# Check sanity of the input
if [ $# -ne "4" ]
then
echo "Usage: fix_audit_watch_rule 'tool' 'path' 'bits' 'key'"
echo "Aborting."
exit 1
fi
# Create a list of audit *.rules files that should be inspected for presence and correctness
# of a particular audit rule. The scheme is as follows:
#
# -----------------------------------------------------------------------------------------
# Tool used to load audit rules | Rule already defined | Audit rules file to inspect |
# -----------------------------------------------------------------------------------------
# auditctl | Doesn't matter | /etc/audit/audit.rules |
# -----------------------------------------------------------------------------------------
# augenrules | Yes | /etc/audit/rules.d/*.rules |
# augenrules | No | /etc/audit/rules.d/$key.rules |
# -----------------------------------------------------------------------------------------
declare -a files_to_inspect
# Check sanity of the specified audit tool
if [ "$tool" != 'auditctl' ] && [ "$tool" != 'augenrules' ]
then
echo "Unknown audit rules loading tool: $1. Aborting."
echo "Use either 'auditctl' or 'augenrules'!"
exit 1
# If the audit tool is 'auditctl', then add '/etc/audit/audit.rules'
# into the list of files to be inspected
elif [ "$tool" == 'auditctl' ]
then
files_to_inspect=("${files_to_inspect[@]}" '/etc/audit/audit.rules')
# If the audit is 'augenrules', then check if rule is already defined
# If rule is defined, add '/etc/audit/rules.d/*.rules' to list of files for inspection.
# If rule isn't defined, add '/etc/audit/rules.d/$key.rules' to list of files for inspection.
elif [ "$tool" == 'augenrules' ]
then
# Case when particular audit rule is already defined in some of /etc/audit/rules.d/*.rules file
# Get pair -- filepath : matching_row into @matches array
IFS=$'\n' matches=($(grep -P "[\s]*-w[\s]+$path" /etc/audit/rules.d/*.rules))
# Reset IFS back to default
unset $IFS
# For each of the matched entries
for match in "${matches[@]}"
do
# Extract filepath from the match
rulesd_audit_file=$(echo $match | cut -f1 -d ':')
# Append that path into list of files for inspection
files_to_inspect=("${files_to_inspect[@]}" "$rulesd_audit_file")
done
# Case when particular audit rule isn't defined yet
if [ ${#files_to_inspect[@]} -eq "0" ]
then
# Append '/etc/audit/rules.d/$key.rules' into list of files for inspection
files_to_inspect="/etc/audit/rules.d/$key.rules"
# If the $key.rules file doesn't exist yet, create it with correct permissions
if [ ! -e "$files_to_inspect" ]
then
touch "$files_to_inspect"
chmod 0640 "$files_to_inspect"
fi
fi
fi
# Finally perform the inspection and possible subsequent audit rule
# correction for each of the files previously identified for inspection
for audit_rules_file in "${files_to_inspect[@]}"
do
# Check if audit watch file system object rule for given path already present
if grep -q -P -- "[\s]*-w[\s]+$path" "$audit_rules_file"
then
# Rule is found => verify yet if existing rule definition contains
# all of the required access type bits
# Escape slashes in path for use in sed pattern below
local esc_path=${path//$'/'/$'\/'}
# Define BRE whitespace class shortcut
local sp="[[:space:]]"
# Extract current permission access types (e.g. -p [r|w|x|a] values) from audit rule
current_access_bits=$(sed -ne "s/$sp*-w$sp\+$esc_path$sp\+-p$sp\+\([rxwa]\{1,4\}\).*/\1/p" "$audit_rules_file")
# Split required access bits string into characters array
# (to check bit's presence for one bit at a time)
for access_bit in $(echo "$required_access_bits" | grep -o .)
do
# For each from the required access bits (e.g. 'w', 'a') check
# if they are already present in current access bits for rule.
# If not, append that bit at the end
if ! grep -q "$access_bit" <<< "$current_access_bits"
then
# Concatenate the existing mask with the missing bit
current_access_bits="$current_access_bits$access_bit"
fi
done
# Propagate the updated rule's access bits (original + the required
# ones) back into the /etc/audit/audit.rules file for that rule
sed -i "s/\($sp*-w$sp\+$esc_path$sp\+-p$sp\+\)\([rxwa]\{1,4\}\)\(.*\)/\1$current_access_bits\3/" "$audit_rules_file"
else
# Rule isn't present yet. Append it at the end of $audit_rules_file file
# with proper key
echo "-w $path -p $required_access_bits -k $key" >> "$audit_rules_file"
fi
done
}
</value>
</Value>
<Value id="function_package_command" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to to install or uninstall packages on RHEL and Fedora systems</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to install or uninstall packages on RHEL and Fedora systems.
Example Call(s):
package_command install aide
package_command remove telnet-server
</description>
<value>
function package_command {
# Load function arguments into local variables
local package_operation=$1
local package=$2
# Check sanity of the input
if [ $# -ne "2" ]
then
echo "Usage: package_command 'install/uninstall' 'rpm_package_name"
echo "Aborting."
exit 1
fi
# If dnf is installed, use dnf; otherwise, use yum
if [ -f "/usr/bin/dnf" ] ; then
install_util="/usr/bin/dnf"
else
install_util="/usr/bin/yum"
fi
if [ "$package_operation" != 'remove' ] ; then
# If the rpm is not installed, install the rpm
if ! /bin/rpm -q --quiet $package; then
$install_util -y $package_operation $package
fi
else
# If the rpm is installed, uninstall the rpm
if /bin/rpm -q --quiet $package; then
$install_util -y $package_operation $package
fi
fi
}
</value>
</Value>
<Value id="function_service_command" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to enable/disable and start/stop services on RHEL
and Fedora systems</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to enable/disable and start/stop services on RHEL and
Fedora systems.
Example Call(s):
service_command enable bluetooth
service_command disable bluetooth.service
Using xinetd:
service_command disable rsh.socket xinetd=rsh
</description>
<value>
function service_command {
# Load function arguments into local variables
local service_state=$1
local service=$2
local xinetd=$(echo $3 | cut -d'=' -f2)
# Check sanity of the input
if [ $# -lt "2" ]
then
echo "Usage: service_command 'enable/disable' 'service_name.service'"
echo
echo "To enable or disable xinetd services add \'xinetd=service_name\'"
echo "as the last argument"
echo "Aborting."
exit 1
fi
# If systemctl is installed, use systemctl command; otherwise, use the service/chkconfig commands
if [ -f "/usr/bin/systemctl" ] ; then
service_util="/usr/bin/systemctl"
else
service_util="/sbin/service"
chkconfig_util="/sbin/chkconfig"
fi
# If disable is not specified in arg1, set variables to enable services.
# Otherwise, variables are to be set to disable services.
if [ "$service_state" != 'disable' ] ; then
service_state="enable"
service_operation="start"
chkconfig_state="on"
else
service_state="disable"
service_operation="stop"
chkconfig_state="off"
fi
# If chkconfig_util is not empty, use chkconfig/service commands.
if ! [ "x$chkconfig_util" = x ] ; then
$service_util $service $service_operation
$chkconfig_util --level 0123456 $service $chkconfig_state
else
$service_util $service_operation $service
$service_util $service_state $service
fi
# Test if local variable xinetd is empty using non-bashism.
# If empty, then xinetd is not being used.
if ! [ "x$xinetd" = x ] ; then
grep -qi disable /etc/xinetd.d/$xinetd && \
if ! [ "$service_operation" != 'disable' ] ; then
sed -i "s/disable.*/disable = no/gI" /etc/xinetd.d/$xinetd
else
sed -i "s/disable.*/disable = yes/gI" /etc/xinetd.d/$xinetd
fi
fi
}
</value>
</Value>
<Value id="function_perform_audit_rules_privileged_commands_remediation" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to perform remediation for 'audit_rules_privileged_commands' rule</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to perform remediation for 'audit_rules_privileged_commands' rule
Expects two arguments:
audit_tool tool used to load audit rules
One of 'auditctl' or 'augenrules'
min_auid Minimum original ID the user logged in with
'500' for RHEL-6 and before, '1000' for RHEL-7 and after.
Example Call(s):
perform_audit_rules_privileged_commands_remediation "auditctl" "500"
perform_audit_rules_privileged_commands_remediation "augenrules" "1000"
</description>
<value>
function perform_audit_rules_privileged_commands_remediation {
#
# Load function arguments into local variables
local tool="$1"
local min_auid="$2"
# Check sanity of the input
if [ $# -ne "2" ]
then
echo "Usage: perform_audit_rules_privileged_commands_remediation 'auditctl | augenrules' '500 | 1000'"
echo "Aborting."
exit 1
fi
declare -a files_to_inspect=()
# Check sanity of the specified audit tool
if [ "$tool" != 'auditctl' ] && [ "$tool" != 'augenrules' ]
then
echo "Unknown audit rules loading tool: $1. Aborting."
echo "Use either 'auditctl' or 'augenrules'!"
exit 1
# If the audit tool is 'auditctl', then:
# * add '/etc/audit/audit.rules'to the list of files to be inspected,
# * specify '/etc/audit/audit.rules' as the output audit file, where
# missing rules should be inserted
elif [ "$tool" == 'auditctl' ]
then
files_to_inspect=("/etc/audit/audit.rules")
output_audit_file="/etc/audit/audit.rules"
#
# If the audit tool is 'augenrules', then:
# * add '/etc/audit/rules.d/*.rules' to the list of files to be inspected
# (split by newline),
# * specify /etc/audit/rules.d/privileged.rules' as the output file, where
# missing rules should be inserted
elif [ "$tool" == 'augenrules' ]
then
IFS=$'\n' files_to_inspect=($(find /etc/audit/rules.d -maxdepth 1 -type f -name *.rules -print))
output_audit_file="/etc/audit/rules.d/privileged.rules"
fi
# Obtain the list of SUID/SGID binaries on the particular system (split by newline)
# into privileged_binaries array
IFS=$'\n' privileged_binaries=($(find / -xdev -type f -perm -4000 -o -type f -perm -2000 2>/dev/null))
# Keep list of SUID/SGID binaries that have been already handled within some previous iteration
declare -a sbinaries_to_skip=()
# For each found sbinary in privileged_binaries list
for sbinary in "${privileged_binaries[@]}"
do
# Replace possible slash '/' character in sbinary definition so we could use it in sed expressions below
sbinary_esc=${sbinary//$'/'/$'\/'}
# Check if this sbinary wasn't already handled in some of the previous iterations
# Return match only if whole sbinary definition matched (not in the case just prefix matched!!!)
if [[ $(sed -ne "/${sbinary_esc}$/p" <<< ${sbinaries_to_skip[@]}) ]]
then
# If so, don't process it second time & go to process next sbinary
continue
fi
# Reset the counter of inspected files when starting to check
# presence of existing audit rule for new sbinary
local count_of_inspected_files=0
# For each audit rules file from the list of files to be inspected
for afile in "${files_to_inspect[@]}"
do
# Search current audit rules file's content for match. Match criteria:
# * existing rule is for the same SUID/SGID binary we are currently processing (but
# can contain multiple -F path= elements covering multiple SUID/SGID binaries)
# * existing rule contains all arguments from expected rule form (though can contain
# them in arbitrary order)
base_search=$(sed -e "/-a always,exit/!d" -e "/-F path=${sbinary_esc}$/!d" \
-e "/-F path=[^[:space:]]\+/!d" -e "/-F perm=.*/!d" \
-e "/-F auid>=${min_auid}/!d" -e "/-F auid!=4294967295/!d" \
-e "/-k privileged/!d" $afile)
# Increase the count of inspected files for this sbinary
count_of_inspected_files=$((count_of_inspected_files + 1))
# Define expected rule form for this binary
expected_rule="-a always,exit -F path=${sbinary} -F perm=x -F auid>=${min_auid} -F auid!=4294967295 -k privileged"
# Require execute access type to be set for existing audit rule
exec_access='x'
# Search current audit rules file's content for presence of rule pattern for this sbinary
if [[ $base_search ]]
then
# Current audit rules file already contains rule for this binary =>
# Store the exact form of found rule for this binary for further processing
concrete_rule=$base_search
# Select all other SUID/SGID binaries possibly also present in the found rule
IFS=$'\n' handled_sbinaries=($(grep -o -e "-F path=[^[:space:]]\+" <<< $concrete_rule))
IFS=$' ' handled_sbinaries=(${handled_sbinaries[@]//-F path=/})
# Merge the list of such SUID/SGID binaries found in this iteration with global list ignoring duplicates
sbinaries_to_skip=($(for i in "${sbinaries_to_skip[@]}" "${handled_sbinaries[@]}"; do echo $i; done | sort -du))
# Separate concrete_rule into three sections using hash '#'
# sign as a delimiter around rule's permission section borders
concrete_rule=$(echo $concrete_rule | sed -n "s/\(.*\)\+\(-F perm=[rwax]\+\)\+/\1#\2#/p")
# Split concrete_rule into head, perm, and tail sections using hash '#' delimiter
IFS=$'#' read rule_head rule_perm rule_tail <<< "$concrete_rule"
# Extract already present exact access type [r|w|x|a] from rule's permission section
access_type=${rule_perm//-F perm=/}
# Verify current permission access type(s) for rule contain 'x' (execute) permission
if ! grep -q "$exec_access" <<< "$access_type"
then
# If not, append the 'x' (execute) permission to the existing access type bits
access_type="$access_type$exec_access"
# Reconstruct the permissions section for the rule
new_rule_perm="-F perm=$access_type"
# Update existing rule in current audit rules file with the new permission section
sed -i "s#${rule_head}\(.*\)${rule_tail}#${rule_head}${new_rule_perm}${rule_tail}#" $afile
fi
# If the required audit rule for particular sbinary wasn't found yet, insert it under following conditions:
#
# * in the "auditctl" mode of operation insert particular rule each time
# (because in this mode there's only one file -- /etc/audit/audit.rules to be inspected for presence of this rule),
#
# * in the "augenrules" mode of operation insert particular rule only once and only in case we have already
# searched all of the files from /etc/audit/rules.d/*.rules location (since that audit rule can be defined
# in any of those files and if not, we want it to be inserted only once into /etc/audit/rules.d/privileged.rules file)
#
elif [ "$tool" == "auditctl" ] || [[ "$tool" == "augenrules" && $count_of_inspected_files -eq "${#files_to_inspect[@]}" ]]
then
# Current audit rules file's content doesn't contain expected rule for this
# SUID/SGID binary yet => append it
echo $expected_rule >> $output_audit_file
fi
done
done
}
</value>
</Value>
<Value id="function_populate" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to populate environment variables needed for unit testing</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">The populate function isn't directly used by SSG at the moment but it can
ba used for testing purposes (to verify proper work of the remediation script directly
from the shell).</description>
<value>
function populate {
# Code to populate environment variables needed (for unit testing)
if [ -z "${!1}" ]; then
echo "$1 is not defined. Exiting."
exit
fi
}
</value>
</Value>
<Value id="function_rhel6_perform_audit_adjtimex_settimeofday_stime_remediation" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function for the 'adjtimex', 'settimeofday', and 'stime'
audit system calls on Red Hat Enterprise Linux 6</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Perform the remediation for the 'adjtimex', 'settimeofday', and 'stime' audit
# system calls on Red Hat Enterprise Linux 6 OS</description>
<value>
function fix_audit_syscall_rule {
# Load function arguments into local variables
local tool="$1"
local pattern="$2"
local group="$3"
local arch="$4"
local full_rule="$5"
# Check sanity of the input
if [ $# -ne "5" ]
then
echo "Usage: fix_audit_syscall_rule 'tool' 'pattern' 'group' 'arch' 'full rule'"
echo "Aborting."
exit 1
fi
# Create a list of audit *.rules files that should be inspected for presence and correctness
# of a particular audit rule. The scheme is as follows:
#
# -----------------------------------------------------------------------------------------
# Tool used to load audit rules | Rule already defined | Audit rules file to inspect |
# -----------------------------------------------------------------------------------------
# auditctl | Doesn't matter | /etc/audit/audit.rules |
# -----------------------------------------------------------------------------------------
# augenrules | Yes | /etc/audit/rules.d/*.rules |
# augenrules | No | /etc/audit/rules.d/$key.rules |
# -----------------------------------------------------------------------------------------
#
declare -a files_to_inspect
# First check sanity of the specified audit tool
if [ "$tool" != 'auditctl' ] && [ "$tool" != 'augenrules' ]
then
echo "Unknown audit rules loading tool: $1. Aborting."
echo "Use either 'auditctl' or 'augenrules'!"
exit 1
# If audit tool is 'auditctl', then add '/etc/audit/audit.rules'
# file to the list of files to be inspected
elif [ "$tool" == 'auditctl' ]
then
files_to_inspect=("${files_to_inspect[@]}" '/etc/audit/audit.rules' )
# If audit tool is 'augenrules', then check if the audit rule is defined
# If rule is defined, add '/etc/audit/rules.d/*.rules' to the list for inspection
# If rule isn't defined yet, add '/etc/audit/rules.d/$key.rules' to the list for inspection
elif [ "$tool" == 'augenrules' ]
then
# Extract audit $key from audit rule so we can use it later
key=$(expr "$full_rule" : '.*-k[[:space:]]\([^[:space:]]\+\)')
# Check if particular audit rule is already defined
IFS=$'\n' matches=($(sed -s -n -e "/${pattern}/!d" -e "/${arch}/!d" -e "/${group}/!d;F" /etc/audit/rules.d/*.rules))
# Reset IFS back to default
unset $IFS
for match in "${matches[@]}"
do
files_to_inspect=("${files_to_inspect[@]}" "${match}")
done
# Case when particular rule isn't defined in /etc/audit/rules.d/*.rules yet
if [ ${#files_to_inspect[@]} -eq "0" ]
then
files_to_inspect="/etc/audit/rules.d/$key.rules"
if [ ! -e "$files_to_inspect" ]
then
touch "$files_to_inspect"
chmod 0640 "$files_to_inspect"
fi
fi
fi
#
# Indicator that we want to append $full_rule into $audit_file by default
local append_expected_rule=0
for audit_file in "${files_to_inspect[@]}"
do
# Filter existing $audit_file rules' definitions to select those that:
# * follow the rule pattern, and
# * meet the hardware architecture requirement, and
# * are current syscall group specific
IFS=$'\n' existing_rules=($(sed -e "/${pattern}/!d" -e "/${arch}/!d" -e "/${group}/!d" "$audit_file"))
# Reset IFS back to default
unset $IFS
# Process rules found case-by-case
for rule in "${existing_rules[@]}"
do
# Found rule is for same arch & key, but differs (e.g. in count of -S arguments)
if [ "${rule}" != "${full_rule}" ]
then
# If so, isolate just '(-S \w)+' substring of that rule
rule_syscalls=$(echo $rule | grep -o -P '(-S \w+ )+')
# Check if list of '-S syscall' arguments of that rule is subset
# of '-S syscall' list of expected $full_rule
if grep -q -- "$rule_syscalls" <<< "$full_rule"
then
# Rule is covered (i.e. the list of -S syscalls for this rule is
# subset of -S syscalls of $full_rule => existing rule can be deleted
# Thus delete the rule from audit.rules & our array
sed -i -e "/$rule/d" "$audit_file"
existing_rules=("${existing_rules[@]//$rule/}")
else
# Rule isn't covered by $full_rule - it besides -S syscall arguments
# for this group contains also -S syscall arguments for other syscall
# group. Example: '-S lchown -S fchmod -S fchownat' => group='chown'
# since 'lchown' & 'fchownat' share 'chown' substring
# Therefore:
# * 1) delete the original rule from audit.rules
# (original '-S lchown -S fchmod -S fchownat' rule would be deleted)
# * 2) delete the -S syscall arguments for this syscall group, but
# keep those not belonging to this syscall group
# (original '-S lchown -S fchmod -S fchownat' would become '-S fchmod'
# * 3) append the modified (filtered) rule again into audit.rules
# if the same rule not already present
#
# 1) Delete the original rule
sed -i -e "/$rule/d" "$audit_file"
# 2) Delete syscalls for this group, but keep those from other groups
# Convert current rule syscall's string into array splitting by '-S' delimiter
IFS=$'-S' read -a rule_syscalls_as_array <<< "$rule_syscalls"
# Reset IFS back to default
unset $IFS
# Declare new empty string to hold '-S syscall' arguments from other groups
new_syscalls_for_rule=''
# Walk through existing '-S syscall' arguments
for syscall_arg in "${rule_syscalls_as_array[@]}"
do
# Skip empty $syscall_arg values
if [ "$syscall_arg" == '' ]
then
continue
fi
# If the '-S syscall' doesn't belong to current group add it to the new list
# (together with adding '-S' delimiter back for each of such item found)
if grep -q -v -- "$group" <<< "$syscall_arg"
then
new_syscalls_for_rule="$new_syscalls_for_rule -S $syscall_arg"
fi
done
# Replace original '-S syscall' list with the new one for this rule
updated_rule=${rule//$rule_syscalls/$new_syscalls_for_rule}
# Squeeze repeated whitespace characters in rule definition (if any) into one
updated_rule=$(echo "$updated_rule" | tr -s '[:space:]')
# 3) Append the modified / filtered rule again into audit.rules
# (but only in case it's not present yet to prevent duplicate definitions)
if ! grep -q -- "$updated_rule" "$audit_file"
then
echo "$updated_rule" >> "$audit_file"
fi
fi
else
# $audit_file already contains the expected rule form for this
# architecture & key => don't insert it second time
append_expected_rule=1
fi
done
# We deleted all rules that were subset of the expected one for this arch & key.
# Also isolated rules containing system calls not from this system calls group.
# Now append the expected rule if it's not present in $audit_file yet
if [[ ${append_expected_rule} -eq "0" ]]
then
echo "$full_rule" >> "$audit_file"
fi
done
}
function rhel6_perform_audit_adjtimex_settimeofday_stime_remediation {
# Perform the remediation for the 'adjtimex', 'settimeofday', and 'stime' audit
# system calls on Red Hat Enterprise Linux 6 OS
#
# Retrieve hardware architecture of the underlying system
[ $(getconf LONG_BIT) = "32" ] && RULE_ARCHS=("b32") || RULE_ARCHS=("b32" "b64")
for ARCH in "${RULE_ARCHS[@]}"
do
PATTERN="-a always,exit -F arch=${ARCH} -S .* -k *"
# Create expected audit group and audit rule form for particular system call & architecture
if [ ${ARCH} = "b32" ]
then
# stime system call is known at 32-bit arch (see e.g "$ ausyscall i386 stime" 's output)
# so append it to the list of time group system calls to be audited
GROUP="\(adjtimex\|settimeofday\|stime\)"
FULL_RULE="-a always,exit -F arch=${ARCH} -S adjtimex -S settimeofday -S stime -k audit_time_rules"
elif [ ${ARCH} = "b64" ]
then
# stime system call isn't known at 64-bit arch (see "$ ausyscall x86_64 stime" 's output)
# therefore don't add it to the list of time group system calls to be audited
GROUP="\(adjtimex\|settimeofday\)"
FULL_RULE="-a always,exit -F arch=${ARCH} -S adjtimex -S settimeofday -k audit_time_rules"
fi
# Perform the remediation itself
fix_audit_syscall_rule "auditctl" "$PATTERN" "$GROUP" "$ARCH" "$FULL_RULE"
done
}
</value>
</Value>
<Value id="function_rhel7_fedora_perform_audit_adjtimex_settimeofday_stime_remediation" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function for the 'adjtimex', 'settimeofday', and 'stime'
audit system calls on Red Hat Enterprise Linux 7 or Fedora</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Perform the remediation for the 'adjtimex', 'settimeofday', and
'stime' audit system calls on Red Hat Enterprise Linux 7 or Fedora OSes</description>
<value>
function fix_audit_syscall_rule {
# Load function arguments into local variables
local tool="$1"
local pattern="$2"
local group="$3"
local arch="$4"
local full_rule="$5"
# Check sanity of the input
if [ $# -ne "5" ]
then
echo "Usage: fix_audit_syscall_rule 'tool' 'pattern' 'group' 'arch' 'full rule'"
echo "Aborting."
exit 1
fi
# Create a list of audit *.rules files that should be inspected for presence and correctness
# of a particular audit rule. The scheme is as follows:
#
# -----------------------------------------------------------------------------------------
# Tool used to load audit rules | Rule already defined | Audit rules file to inspect |
# -----------------------------------------------------------------------------------------
# auditctl | Doesn't matter | /etc/audit/audit.rules |
# -----------------------------------------------------------------------------------------
# augenrules | Yes | /etc/audit/rules.d/*.rules |
# augenrules | No | /etc/audit/rules.d/$key.rules |
# -----------------------------------------------------------------------------------------
#
declare -a files_to_inspect
# First check sanity of the specified audit tool
if [ "$tool" != 'auditctl' ] && [ "$tool" != 'augenrules' ]
then
echo "Unknown audit rules loading tool: $1. Aborting."
echo "Use either 'auditctl' or 'augenrules'!"
exit 1
# If audit tool is 'auditctl', then add '/etc/audit/audit.rules'
# file to the list of files to be inspected
elif [ "$tool" == 'auditctl' ]
then
files_to_inspect=("${files_to_inspect[@]}" '/etc/audit/audit.rules' )
# If audit tool is 'augenrules', then check if the audit rule is defined
# If rule is defined, add '/etc/audit/rules.d/*.rules' to the list for inspection
# If rule isn't defined yet, add '/etc/audit/rules.d/$key.rules' to the list for inspection
elif [ "$tool" == 'augenrules' ]
then
# Extract audit $key from audit rule so we can use it later
key=$(expr "$full_rule" : '.*-k[[:space:]]\([^[:space:]]\+\)')
# Check if particular audit rule is already defined
IFS=$'\n' matches=($(sed -s -n -e "/${pattern}/!d" -e "/${arch}/!d" -e "/${group}/!d;F" /etc/audit/rules.d/*.rules))
# Reset IFS back to default
unset $IFS
for match in "${matches[@]}"
do
files_to_inspect=("${files_to_inspect[@]}" "${match}")
done
# Case when particular rule isn't defined in /etc/audit/rules.d/*.rules yet
if [ ${#files_to_inspect[@]} -eq "0" ]
then
files_to_inspect="/etc/audit/rules.d/$key.rules"
if [ ! -e "$files_to_inspect" ]
then
touch "$files_to_inspect"
chmod 0640 "$files_to_inspect"
fi
fi
fi
#
# Indicator that we want to append $full_rule into $audit_file by default
local append_expected_rule=0
for audit_file in "${files_to_inspect[@]}"
do
# Filter existing $audit_file rules' definitions to select those that:
# * follow the rule pattern, and
# * meet the hardware architecture requirement, and
# * are current syscall group specific
IFS=$'\n' existing_rules=($(sed -e "/${pattern}/!d" -e "/${arch}/!d" -e "/${group}/!d" "$audit_file"))
# Reset IFS back to default
unset $IFS
# Process rules found case-by-case
for rule in "${existing_rules[@]}"
do
# Found rule is for same arch & key, but differs (e.g. in count of -S arguments)
if [ "${rule}" != "${full_rule}" ]
then
# If so, isolate just '(-S \w)+' substring of that rule
rule_syscalls=$(echo $rule | grep -o -P '(-S \w+ )+')
# Check if list of '-S syscall' arguments of that rule is subset
# of '-S syscall' list of expected $full_rule
if grep -q -- "$rule_syscalls" <<< "$full_rule"
then
# Rule is covered (i.e. the list of -S syscalls for this rule is
# subset of -S syscalls of $full_rule => existing rule can be deleted
# Thus delete the rule from audit.rules & our array
sed -i -e "/$rule/d" "$audit_file"
existing_rules=("${existing_rules[@]//$rule/}")
else
# Rule isn't covered by $full_rule - it besides -S syscall arguments
# for this group contains also -S syscall arguments for other syscall
# group. Example: '-S lchown -S fchmod -S fchownat' => group='chown'
# since 'lchown' & 'fchownat' share 'chown' substring
# Therefore:
# * 1) delete the original rule from audit.rules
# (original '-S lchown -S fchmod -S fchownat' rule would be deleted)
# * 2) delete the -S syscall arguments for this syscall group, but
# keep those not belonging to this syscall group
# (original '-S lchown -S fchmod -S fchownat' would become '-S fchmod'
# * 3) append the modified (filtered) rule again into audit.rules
# if the same rule not already present
#
# 1) Delete the original rule
sed -i -e "/$rule/d" "$audit_file"
# 2) Delete syscalls for this group, but keep those from other groups
# Convert current rule syscall's string into array splitting by '-S' delimiter
IFS=$'-S' read -a rule_syscalls_as_array <<< "$rule_syscalls"
# Reset IFS back to default
unset $IFS
# Declare new empty string to hold '-S syscall' arguments from other groups
new_syscalls_for_rule=''
# Walk through existing '-S syscall' arguments
for syscall_arg in "${rule_syscalls_as_array[@]}"
do
# Skip empty $syscall_arg values
if [ "$syscall_arg" == '' ]
then
continue
fi
# If the '-S syscall' doesn't belong to current group add it to the new list
# (together with adding '-S' delimiter back for each of such item found)
if grep -q -v -- "$group" <<< "$syscall_arg"
then
new_syscalls_for_rule="$new_syscalls_for_rule -S $syscall_arg"
fi
done
# Replace original '-S syscall' list with the new one for this rule
updated_rule=${rule//$rule_syscalls/$new_syscalls_for_rule}
# Squeeze repeated whitespace characters in rule definition (if any) into one
updated_rule=$(echo "$updated_rule" | tr -s '[:space:]')
# 3) Append the modified / filtered rule again into audit.rules
# (but only in case it's not present yet to prevent duplicate definitions)
if ! grep -q -- "$updated_rule" "$audit_file"
then
echo "$updated_rule" >> "$audit_file"
fi
fi
else
# $audit_file already contains the expected rule form for this
# architecture & key => don't insert it second time
append_expected_rule=1
fi
done
# We deleted all rules that were subset of the expected one for this arch & key.
# Also isolated rules containing system calls not from this system calls group.
# Now append the expected rule if it's not present in $audit_file yet
if [[ ${append_expected_rule} -eq "0" ]]
then
echo "$full_rule" >> "$audit_file"
fi
done
}
function rhel7_fedora_perform_audit_adjtimex_settimeofday_stime_remediation {
# Perform the remediation for the 'adjtimex', 'settimeofday', and 'stime' audit
# system calls on Red Hat Enterprise Linux 7 or Fedora OSes
#
# Retrieve hardware architecture of the underlying system
[ $(getconf LONG_BIT) = "32" ] && RULE_ARCHS=("b32") || RULE_ARCHS=("b32" "b64")
for ARCH in "${RULE_ARCHS[@]}"
do
PATTERN="-a always,exit -F arch=${ARCH} -S .* -k *"
# Create expected audit group and audit rule form for particular system call & architecture
if [ ${ARCH} = "b32" ]
then
# stime system call is known at 32-bit arch (see e.g "$ ausyscall i386 stime" 's output)
# so append it to the list of time group system calls to be audited
GROUP="\(adjtimex\|settimeofday\|stime\)"
FULL_RULE="-a always,exit -F arch=${ARCH} -S adjtimex -S settimeofday -S stime -k audit_time_rules"
elif [ ${ARCH} = "b64" ]
then
# stime system call isn't known at 64-bit arch (see "$ ausyscall x86_64 stime" 's output)
# therefore don't add it to the list of time group system calls to be audited
GROUP="\(adjtimex\|settimeofday\)"
FULL_RULE="-a always,exit -F arch=${ARCH} -S adjtimex -S settimeofday -k audit_time_rules"
fi
# Perform the remediation for both possible tools: 'auditctl' and 'augenrules'
fix_audit_syscall_rule "auditctl" "$PATTERN" "$GROUP" "$ARCH" "$FULL_RULE"
fix_audit_syscall_rule "augenrules" "$PATTERN" "$GROUP" "$ARCH" "$FULL_RULE"
done
}
</value>
</Value>
<Value id="function_replace_or_append" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to replace configuration setting in config file or
add the configuration setting if it does not exist yet</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to replace configuration setting in config file or add
the configuration setting if it does not exist.
Expects four arguments:
config_file: Configuration file that will be modified
key: Configuration option to change
value: Value of the configuration option to change
cce: The CCE identifier or '$CCENUM' if no CCE identifier exists
Optional arguments:
format: Optional argument to specify the format of how key/value should be
modified/appended in the configuration file. The default is key = value.
Example Call(s):
With default format of 'key = value':
replace_or_append '/etc/sysctl.conf' '^kernel.randomize_va_space' '2' '$CCENUM'
With custom key/value format:
replace_or_append '/etc/sysconfig/selinux' '^SELINUX=' 'disabled' '$CCENUM' '%s=%s'
With a variable:
replace_or_append '/etc/sysconfig/selinux' '^SELINUX=' $var_selinux_state '$CCENUM' '%s=%s'
</description>
<value>
function replace_or_append {
local config_file=$1
local key=$2
local value=$3
local cce=$4
local format=$5
# Check sanity of the input
if [ $# -lt "3" ]
then
echo "Usage: replace_or_append 'config_file_location' 'key_to_search' 'new_value'"
echo
echo "If symlinks need to be taken into account, add yes/no to the last argument"
echo "to allow to 'follow_symlinks'."
echo "Aborting."
exit 1
fi
# Test if the config_file is a symbolic link. If so, use --follow-symlinks with sed.
# Otherwise, regular sed command will do.
if test -L $config_file; then
sed_command="sed -i --follow-symlinks"
else
sed_command="sed -i"
fi
# Test that the cce arg is not empty or does not equal $CCENUM.
# If $CCENUM exists, it means that there is no CCE assigned.
if ! [ "x$cce" = x ] && [ "$cce" != '$CCENUM' ]; then
cce="CCE-${cce}"
else
cce="CCE"
fi
# Strip any search characters in the key arg so that the key can be replaced without
# adding any search characters to the config file.
stripped_key=$(sed "s/[\^=\$,;+]*//g" <<< $key)
# If there is no print format specified in the last arg, use the default format.
if ! [ "x$format" = x ] ; then
printf -v formatted_output "$format" $stripped_key $value
else
formatted_output="$stripped_key = $value"
fi
# If the key exists, change it. Otherwise, add it to the config_file.
if `grep -qi $key $config_file` ; then
$sed_command "s/$key.*/$formatted_output/g" $config_file
else
echo -ne "\n# Per $cce: Set $formatted_output in $config_file" >> $config_file
echo -ne "\n$formatted_output" >> $config_file
fi
}
</value>
</Value>
<Value id="function_firefox_js_setting" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to replace configuration setting(s) in the Firefox
preferences JavaScript file or add the preference if it does not exist yet</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to replace configuration setting(s) in the Firefox
preferences JavaScript file or add the preference if it does not exist.
Expects three arguments:
config_file: Configuration file that will be modified
key: Configuration option to change
value: Value of the configuration option to change
Example Call(s):
Without string or variable:
firefox_js_setting "stig_settings.js" "general.config.obscure_value" "0"
With string:
firefox_js_setting "stig_settings.js" "general.config.filename" "\"stig.cfg\""
With a string variable:
firefox_js_setting "stig_settings.js" "general.config.filename" "\"$var_config_file_name\""
</description>
<value>
function firefox_js_setting {
local firefox_js=$1
local key=$2
local value=$3
local firefox_dirs="/usr/lib/firefox /usr/lib64/firefox /usr/local/lib/firefox /usr/local/lib64/firefox"
local firefox_pref="/defaults/pref"
local firefox_preferences="/defaults/preferences"
# Check sanity of input
if [ $# -lt "3" ]
then
echo "Usage: firefox_js_setting 'config_javascript_file' 'key_to_search' 'new_value'"
echo
echo "Aborting."
exit 1
fi
# Check the possible Firefox install directories
for firefox_dir in ${firefox_dirs}; do
# If the Firefox directory exists, then Firefox is installed
if [ -d "${firefox_dir}" ]; then
# Different versions of Firefox have different preferences directories, check for them and set the right one
if [ -d "${firefox_dir}/${firefox_pref}" ] ; then
local firefox_pref_dir="${firefox_dir}/${firefox_pref}"
elif [ -d "${firefox_dir}/${firefox_preferences}" ] ; then
local firefox_pref_dir="${firefox_dir}/${firefox_preferences}"
else
mkdir -m 755 -p "${firefox_dir}/${firefox_preferences}"
local firefox_pref_dir="${firefox_dir}/${firefox_preferences}"
fi
# Make sure the Firefox .js file exists and has the appropriate permissions
if ! [ -f "${firefox_pref_dir}/${firefox_js}" ] ; then
touch "${firefox_pref_dir}/${firefox_js}"
chmod 644 "${firefox_pref_dir}/${firefox_js}"
fi
# If the key exists, change it. Otherwise, add it to the config_file.
if `grep -q "^pref(\"${key}\", " "${firefox_pref_dir}/${firefox_js}"` ; then
sed -i "s/pref(\"${key}\".*/pref(\"${key}\", ${value});/g" "${firefox_pref_dir}/${firefox_js}"
else
echo "pref(\"${key}\", ${value});" >> "${firefox_pref_dir}/${firefox_js}"
fi
fi
done
}
</value>
</Value>
<Value id="function_firefox_cfg_setting" hidden="true" prohibitChanges="true" operator="equals" type="string">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Remediation function to replace configuration setting(s) in the Firefox
preferences configuration (.cfg) file or add the preference if it does not exist yet</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Function to replace configuration setting(s) in the Firefox
preferences configuration (.cfg) file or add the preference if it does not exist.
Expects three arguments:
config_file: Configuration file that will be modified
key: Configuration option to change
value: Value of the configuration option to change
Example Call(s):
Without string or variable:
firefox_cfg_setting "stig.cfg" "extensions.update.enabled" "false"
With string:
firefox_cfg_setting "stig.cfg" "security.default_personal_cert" "\"Ask Every Time\""
With a string variable:
firefox_cfg_setting "stig.cfg" "browser.startup.homepage\" "\"${var_default_home_page}\""
</description>
<value>
function firefox_cfg_setting {
local firefox_cfg=$1
local key=$2
local value=$3
local firefox_dirs="/usr/lib/firefox /usr/lib64/firefox /usr/local/lib/firefox /usr/local/lib64/firefox"
# Check sanity of input
if [ $# -lt "3" ]
then
echo "Usage: firefox_cfg_setting 'config_cfg_file' 'key_to_search' 'new_value'"
echo
echo "Aborting."
exit 1
fi
# Check the possible Firefox install directories
for firefox_dir in ${firefox_dirs}; do
# If the Firefox directory exists, then Firefox is installed
if [ -d "${firefox_dir}" ]; then
# Make sure the Firefox .cfg file exists and has the appropriate permissions
if ! [ -f "${firefox_dir}/${firefox_cfg}" ] ; then
touch "${firefox_dir}/${firefox_cfg}"
chmod 644 "${firefox_dir}/${firefox_cfg}"
fi
# If the key exists, change it. Otherwise, add it to the config_file.
if `grep -q "^lockPref(\"${key}\", " "${firefox_dir}/${firefox_cfg}"` ; then
sed -i "s/lockPref(\"${key}\".*/lockPref(\"${key}\", ${value});/g" "${firefox_dir}/${firefox_cfg}"
else
echo "lockPref(\"${key}\", ${value});" >> "${firefox_dir}/${firefox_cfg}"
fi
fi
done
}
</value>
</Value>
</Group>
<Group id="intro">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Introduction</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
The purpose of this guidance is to provide security configuration
recommendations and baselines for the SUSE Linux Enterprise 11 operating
system. Recommended settings for the basic operating system are provided,
as well as for many network services that the system can provide to other systems.
The guide is intended for system administrators. Readers are assumed to
possess basic system administration skills for Unix-like systems, as well
as some familiarity with the product's documentation and administration
conventions. Some instructions within this guide are complex.
All directions should be followed completely and with understanding of
their effects in order to avoid serious adverse effects on the system
and its security.
</description>
<Group id="general-principles">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">General Principles</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
The following general principles motivate much of the advice in this
guide and should also influence any configuration decisions that are
not explicitly covered.
</description>
<Group id="principle-encrypt-transmitted-data">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Encrypt Transmitted Data Whenever Possible</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Data transmitted over a network, whether wired or wireless, is susceptible
to passive monitoring. Whenever practical solutions for encrypting
such data exist, they should be applied. Even if data is expected to
be transmitted only over a local network, it should still be encrypted.
Encrypting authentication data, such as passwords, is particularly
important. Networks of SUSE Linux Enterprise 11 machines can and should be configured
so that no unencrypted authentication data is ever transmitted between
machines.
</description>
</Group>
<Group id="principle-minimize-software">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Minimize Software to Minimize Vulnerability</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
The simplest way to avoid vulnerabilities in software is to avoid
installing that software. On SUSE Linux Enterprise 11,
the RPM Package Manager (originally Red Hat
Package Manager, abbreviated RPM)
allows for careful management of
the set of software packages installed on a system. Installed software
contributes to system vulnerability in several ways. Packages that
include setuid programs may provide local attackers a potential path to
privilege escalation. Packages that include network services may give
this opportunity to network-based attackers. Packages that include
programs which are predictably executed by local users (e.g. after
graphical login) may provide opportunities for trojan horses or other
attack code to be run undetected. The number of software packages
installed on a system can almost always be significantly pruned to include
only the software for which there is an environmental or operational need.
</description>
</Group>
<Group id="principle-separate-servers">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Run Different Network Services on Separate Systems</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Whenever possible, a server should be dedicated to serving exactly one
network service. This limits the number of other services that can
be compromised in the event that an attacker is able to successfully
exploit a software flaw in one network service.
</description>
</Group>
<Group id="principle-use-security-tools">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Configure Security Tools to Improve System Robustness</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Several tools exist which can be effectively used to improve a system's
resistance to and detection of unknown attacks. These tools can improve
robustness against attack at the cost of relatively little configuration
effort. In particular, this guide recommends and discusses the use of
host-based firewalling, SELinux for protection against
vulnerable services, and a logging and auditing infrastructure for
detection of problems.
</description>
</Group>
<Group id="principle-least-privilege">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Least Privilege</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Grant the least privilege necessary for user accounts and software to perform tasks.
For example, <html:code xmlns:html="http://www.w3.org/1999/xhtml">sudo</html:code> can be implemented to limit authorization to super user
accounts on the system only to designated personnel. Another example is to limit
logins on server systems to only those administrators who need to log into them in
order to perform administration tasks. Using SELinux also follows the principle of
least privilege: SELinux policy can confine software to perform only actions on the
system that are specifically allowed. This can be far more restrictive than the
actions permissible by the traditional Unix permissions model.
</description>
</Group>
</Group>
<Group id="how-to-use">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">How to Use This Guide</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Readers should heed the following points when using the guide.
</description>
<Group id="intro-read-sections-completely">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Read Sections Completely and in Order</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Each section may build on information and recommendations discussed in
prior sections. Each section should be read and understood completely;
instructions should never be blindly applied. Relevant discussion may
occur after instructions for an action.
</description>
</Group>
<Group id="intro-test-non-production">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Test in Non-Production Environment</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
This guidance should always be tested in a non-production environment
before deployment. This test environment should simulate the setup in
which the system will be deployed as closely as possible.
</description>
</Group>
<Group id="intro-root-shell-assumed">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Root Shell Environment Assumed</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Most of the actions listed in this document are written with the
assumption that they will be executed by the root user running the
<html:code xmlns:html="http://www.w3.org/1999/xhtml">/bin/bash</html:code> shell. Commands preceded with a hash mark (#)
assume that the administrator will execute the commands as root, i.e.
apply the command via <html:code xmlns:html="http://www.w3.org/1999/xhtml">sudo</html:code> whenever possible, or use
<html:code xmlns:html="http://www.w3.org/1999/xhtml">su</html:code> to gain root privileges if <html:code xmlns:html="http://www.w3.org/1999/xhtml">sudo</html:code> cannot be
used. Commands which can be executed as a non-root user are are preceded
by a dollar sign ($) prompt.
</description>
</Group>
<Group id="intro-formatting-conventions">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Formatting Conventions</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
Commands intended for shell execution, as well as configuration file text,
are featured in a <html:code xmlns:html="http://www.w3.org/1999/xhtml">monospace font</html:code>. <html:i xmlns:html="http://www.w3.org/1999/xhtml">Italics</html:i> are used
to indicate instances where the system administrator must substitute
the appropriate information into a command or configuration file.
</description>
</Group>
<Group id="intro-reboot-required">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Reboot Required</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
A system reboot is implicitly required after some actions in order to
complete the reconfiguration of the system. In many cases, the changes
will not take effect until a reboot is performed. In order to ensure
that changes are applied properly and to test functionality, always
reboot the system after applying a set of recommendations from this guide.
</description>
</Group>
</Group>
</Group>
<Group id="system">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">System Settings</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Contains rules that check correct system settings.</description>
<Group id="permissions">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">File Permissions and Masks</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Traditional Unix security relies heavily on file and
directory permissions to prevent unauthorized users from reading or
modifying files to which they should not have access.
<html:br xmlns:html="http://www.w3.org/1999/xhtml"/><html:br xmlns:html="http://www.w3.org/1999/xhtml"/>
Several of the commands in this section search filesystems
for files or directories with certain characteristics, and are
intended to be run on every local partition on a given system.
When the variable <html:i xmlns:html="http://www.w3.org/1999/xhtml">PART</html:i> appears in one of the commands below,
it means that the command is intended to be run repeatedly, with the
name of each local partition substituted for <html:i xmlns:html="http://www.w3.org/1999/xhtml">PART</html:i> in turn.
<html:br xmlns:html="http://www.w3.org/1999/xhtml"/><html:br xmlns:html="http://www.w3.org/1999/xhtml"/>
The following command prints a list of all xfs partitions on the local
system, which is the default filesystem for Red Hat Enterprise Linux
7 installations:
<html:pre xmlns:html="http://www.w3.org/1999/xhtml">$ mount -t xfs | awk '{print $3}'</html:pre>
For any systems that use a different
local filesystem type, modify this command as appropriate.
</description>
<Group id="files">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Verify Permissions on Important Files and
Directories</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Permissions for many files on a system must be set
restrictively to ensure sensitive information is properly protected.
This section discusses important
permission restrictions which can be verified
to ensure that no harmful discrepancies have
arisen.</description>
<Group id="permissions_important_account_files">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Verify Permissions on Files with Local Account Information and Credentials</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">The default restrictive permissions for files which act as
important security databases such as <html:code xmlns:html="http://www.w3.org/1999/xhtml">passwd</html:code>, <html:code xmlns:html="http://www.w3.org/1999/xhtml">shadow</html:code>,
<html:code xmlns:html="http://www.w3.org/1999/xhtml">group</html:code>, and <html:code xmlns:html="http://www.w3.org/1999/xhtml">gshadow</html:code> files must be maintained. Many utilities
need read access to the <html:code xmlns:html="http://www.w3.org/1999/xhtml">passwd</html:code> file in order to function properly, but
read access to the <html:code xmlns:html="http://www.w3.org/1999/xhtml">shadow</html:code> file allows malicious attacks against system
passwords, and should never be enabled.</description>
<Rule id="file_owner_etc_passwd" selected="false" severity="medium">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Verify User Who Owns passwd File</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
To properly set the owner of <html:code xmlns:html="http://www.w3.org/1999/xhtml">/etc/passwd</html:code>, run the command:
<html:pre xmlns:html="http://www.w3.org/1999/xhtml" xml:space="preserve">$ sudo chown root /etc/passwd </html:pre>
</description>
<reference href="http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-53r4.pdf">AC-6</reference>
<reference href="http://iase.disa.mil/stigs/cci/Pages/index.aspx">225</reference>
<rationale xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">The <html:code xmlns:html="http://www.w3.org/1999/xhtml">/etc/passwd</html:code> file contains information about the users that are configured on
the system. Protection of this file is critical for system security.</rationale>
<ident system="https://nvd.nist.gov/cce/index.cfm">CCE-TBD</ident>
<ident system="http://iase.disa.mil/stigs/os/unix-linux/Pages/index.aspx">TBD</ident>
<fix system="urn:xccdf:fix:script:sh" id="file_owner_etc_passwd" complexity="low" disruption="low" reboot="false" strategy="disable">chown root /etc/passwd
</fix>
<check system="http://oval.mitre.org/XMLSchema/oval-definitions-5">
<check-content-ref name="oval:ssg-file_owner_etc_passwd:def:1" href="ssg-sle11-oval.xml"/>
</check>
<check system="http://scap.nist.gov/schema/ocil/2">
<check-content-ref href="ssg-sle11-ocil.xml" name="ocil:ssg-file_owner_etc_passwd_ocil:questionnaire:1"/>
</check>
</Rule>
<Rule id="file_groupowner_etc_passwd" selected="false" severity="medium">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Verify Group Who Owns passwd File</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
To properly set the group owner of <html:code xmlns:html="http://www.w3.org/1999/xhtml">/etc/passwd</html:code>, run the command:
<html:pre xmlns:html="http://www.w3.org/1999/xhtml" xml:space="preserve">$ sudo chgrp root /etc/passwd </html:pre>
</description>
<reference href="http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-53r4.pdf">AC-6</reference>
<reference href="http://iase.disa.mil/stigs/cci/Pages/index.aspx">225</reference>
<rationale xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">The <html:code xmlns:html="http://www.w3.org/1999/xhtml">/etc/passwd</html:code> file contains information about the users that are configured on
the system. Protection of this file is critical for system security.</rationale>
<ident system="https://nvd.nist.gov/cce/index.cfm">CCE-TBD</ident>
<ident system="http://iase.disa.mil/stigs/os/unix-linux/Pages/index.aspx">TBD</ident>
<fix system="urn:xccdf:fix:script:sh" id="file_groupowner_etc_passwd" complexity="low" disruption="low" reboot="false" strategy="disable">chgrp root /etc/passwd
</fix>
<check system="http://oval.mitre.org/XMLSchema/oval-definitions-5">
<check-content-ref name="oval:ssg-file_groupowner_etc_passwd:def:1" href="ssg-sle11-oval.xml"/>
</check>
<check system="http://scap.nist.gov/schema/ocil/2">
<check-content-ref href="ssg-sle11-ocil.xml" name="ocil:ssg-file_groupowner_etc_passwd_ocil:questionnaire:1"/>
</check>
</Rule>
<Rule id="file_permissions_etc_passwd" selected="false" severity="medium">
<title xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">Verify Permissions on passwd File</title>
<description xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">
To properly set the permissions of <html:code xmlns:html="http://www.w3.org/1999/xhtml">/etc/passwd</html:code>, run the command:
<html:pre xmlns:html="http://www.w3.org/1999/xhtml" xml:space="preserve">$ sudo chmod 0644 /etc/passwd</html:pre>
</description>
<reference href="http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-53r4.pdf">AC-6</reference>
<reference href="http://iase.disa.mil/stigs/cci/Pages/index.aspx">225</reference>
<rationale xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en-US">If the <html:code xmlns:html="http://www.w3.org/1999/xhtml">/etc/passwd</html:code> file is writable by a group-owner or the
world the risk of its compromise is increased. The file contains the list of
accounts on the system and associated information, and protection of this file
is critical for system security.</rationale>
<ident system="https://nvd.nist.gov/cce/index.cfm">CCE-TBD</ident>
<ident system="http://iase.disa.mil/stigs/os/unix-linux/Pages/index.aspx">TBD</ident>
<fix system="urn:xccdf:fix:script:sh" id="file_permissions_etc_passwd" complexity="low" disruption="low" reboot="false" strategy="disable">chmod 0644 /etc/passwd
</fix>
<check system="http://oval.mitre.org/XMLSchema/oval-definitions-5">
<check-content-ref name="oval:ssg-file_permissions_etc_passwd:def:1" href="ssg-sle11-oval.xml"/>
</check>
<check system="http://scap.nist.gov/schema/ocil/2">
<check-content-ref href="ssg-sle11-ocil.xml" name="ocil:ssg-file_permissions_etc_passwd_ocil:questionnaire:1"/>
</check>
</Rule>
</Group>
</Group>
</Group>
</Group>
</Benchmark>
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