/usr/share/w3af/plugins/grep/strangeHeaders.py is in w3af-console 1.0-rc3svn3489-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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strangeHeaders.py
Copyright 2006 Andres Riancho
This file is part of w3af, w3af.sourceforge.net .
w3af is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 2 of the License.
w3af is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with w3af; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
'''
import core.controllers.outputManager as om
# options
from core.data.options.option import option
from core.data.options.optionList import optionList
from core.controllers.basePlugin.baseGrepPlugin import baseGrepPlugin
import core.data.kb.knowledgeBase as kb
import core.data.kb.info as info
from core.controllers.misc.groupbyMinKey import groupbyMinKey
class strangeHeaders(baseGrepPlugin):
'''
Grep headers for uncommon headers sent in HTTP responses.
@author: Andres Riancho ( andres.riancho@gmail.com )
'''
def __init__(self):
baseGrepPlugin.__init__(self)
self._common_headers = self._getCommonHeaders()
def grep(self, request, response):
'''
Plugin entry point.
@parameter request: The HTTP request object.
@parameter response: The HTTP response object
@return: None, all results are saved in the kb.
'''
# Check if the header names are common or not
for header_name in response.getHeaders().keys():
if header_name.upper() not in self._common_headers:
# I check if the kb already has a info object with this code:
strange_header_infos = kb.kb.getData('strangeHeaders', 'strangeHeaders')
corresponding_info = None
for info_obj in strange_header_infos:
if info_obj['header_name'] == header_name:
corresponding_info = info_obj
break
if corresponding_info:
# Work with the "old" info object:
id_list = corresponding_info.getId()
id_list.append( response.id )
corresponding_info.setId( id_list )
else:
# Create a new info object from scratch and save it to the kb:
i = info.info()
i.setName('Strange header')
i.setURL( response.getURL() )
i.setId( response.id )
msg = 'The remote web server sent the HTTP header: "' + header_name
msg += '" with value: "' + response.getHeaders()[header_name] + '".'
i.setDesc( msg )
i['header_name'] = header_name
hvalue = response.getHeaders()[header_name]
i['header_value'] = hvalue
i.addToHighlight( hvalue, header_name )
kb.kb.append( self , 'strangeHeaders' , i )
# Now check for protocol anomalies
self._content_location_not_300(request, response)
def _content_location_not_300( self, request, response):
'''
Check if the response has a content-location header and the response code
is not in the 300 range.
@return: None, all results are saved in the kb.
'''
if 'content-location' in response.getLowerCaseHeaders() \
and response.getCode() not in xrange(300,310):
i = info.info()
i.setName('Content-Location HTTP header anomaly')
i.setURL( response.getURL() )
i.setId( response.id )
msg = 'The URL: "' + i.getURL() + '" sent the HTTP header: "content-location"'
msg += ' with value: "' + response.getLowerCaseHeaders()['content-location']
msg += '" in an HTTP response with code ' + str(response.getCode()) + ' which is'
msg += ' a violation to the RFC.'
i.setDesc( msg )
i.addToHighlight( 'content-location' )
kb.kb.append( self , 'anomaly' , i )
def setOptions( self, OptionList ):
pass
def getOptions( self ):
'''
@return: A list of option objects for this plugin.
'''
ol = optionList()
return ol
def end(self):
'''
This method is called when the plugin wont be used anymore.
'''
headers = kb.kb.getData( 'strangeHeaders', 'strangeHeaders' )
# This is how I saved the data:
#i['header_name'] = header_name
#i['header_value'] = response.getHeaders()[header_name]
# Group correctly
tmp = []
for i in headers:
tmp.append( (i['header_name'], i.getURL() ) )
# And don't print duplicates
tmp = list(set(tmp))
resDict, itemIndex = groupbyMinKey( tmp )
if itemIndex == 0:
# Grouped by header_name
msg = 'The header: "%s" was sent by these URLs:'
else:
# Grouped by URL
msg = 'The URL: "%s" sent these strange headers:'
for k in resDict:
om.out.information(msg % k)
for i in resDict[k]:
om.out.information('- ' + i )
def _getCommonHeaders(self):
headers = []
### TODO: verify if I need to add more values here
# Remember that this headers are only the ones SENT BY THE SERVER TO THE CLIENT
# Headers must be uppercase in order to compare them
headers.append("ACCEPT-RANGES")
headers.append("AGE")
headers.append("ALLOW")
headers.append("CONNECTION")
headers.append("CONTENT-LENGTH")
headers.append("CONTENT-TYPE")
headers.append("CONTENT-LANGUAGE")
headers.append("CONTENT-LOCATION")
headers.append("CACHE-CONTROL")
headers.append("DATE")
headers.append("EXPIRES")
headers.append("ETAG")
headers.append("KEEP-ALIVE")
headers.append("LAST-MODIFIED")
headers.append("LOCATION")
headers.append("PUBLIC")
headers.append("PRAGMA")
headers.append("PROXY-CONNECTION")
headers.append("SET-COOKIE")
headers.append("SERVER")
headers.append("TRANSFER-ENCODING")
headers.append("VIA")
headers.append("VARY")
headers.append("WWW-AUTHENTICATE")
headers.append("X-POWERED-BY")
headers.append("X-ASPNET-VERSION")
headers.append("X-CACHE")
headers.append("X-PAD")
return headers
def getPluginDeps( self ):
'''
@return: A list with the names of the plugins that should be runned before the
current one.
'''
return []
def getLongDesc( self ):
'''
@return: A DETAILED description of the plugin functions and features.
'''
return '''
This plugin greps all headers for non-common headers. This could be usefull to identify special modules
and features added to the server.
'''
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