mirror of
https://github.com/sqlmapproject/sqlmap.git
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727664aea7
the web application technology by parsing also HTTP response Server header. Refactor libraries and plugins that parses XML to fingerprint and show on standard output the information. Updated changelog.
241 lines
7.9 KiB
Python
241 lines
7.9 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
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Copyright (c) 2006-2008 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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and Daniele Bellucci <daniele.bellucci@gmail.com>
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sqlmap is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation version 2 of the License.
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sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with sqlmap; if not, write to the Free Software Foundation, Inc., 51
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Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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import re
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from lib.core.common import formatDBMSfp
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from lib.core.common import formatFingerprint
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from lib.core.common import getHtmlErrorFp
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from lib.core.common import randomInt
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from lib.core.data import conf
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from lib.core.data import kb
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from lib.core.data import logger
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from lib.core.exception import sqlmapSyntaxException
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from lib.core.session import setDbms
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from lib.core.settings import PGSQL_ALIASES
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from lib.core.settings import PGSQL_SYSTEM_DBS
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from lib.core.unescaper import unescaper
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from lib.request import inject
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from plugins.generic.enumeration import Enumeration
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from plugins.generic.filesystem import Filesystem
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from plugins.generic.fingerprint import Fingerprint
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from plugins.generic.takeover import Takeover
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class PostgreSQLMap(Fingerprint, Enumeration, Filesystem, Takeover):
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"""
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This class defines PostgreSQL methods
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"""
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def __init__(self):
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self.excludeDbsList = PGSQL_SYSTEM_DBS
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Enumeration.__init__(self, "PostgreSQL")
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unescaper.setUnescape(PostgreSQLMap.unescape)
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@staticmethod
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def unescape(expression, quote=True):
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if quote:
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while True:
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index = expression.find("'")
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if index == -1:
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break
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firstIndex = index + 1
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index = expression[firstIndex:].find("'")
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if index == -1:
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raise sqlmapSyntaxException, "Unenclosed ' in '%s'" % expression
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lastIndex = firstIndex + index
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old = "'%s'" % expression[firstIndex:lastIndex]
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#unescaped = "("
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unescaped = ""
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for i in range(firstIndex, lastIndex):
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unescaped += "CHR(%d)" % (ord(expression[i]))
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if i < lastIndex - 1:
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unescaped += "||"
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#unescaped += ")"
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expression = expression.replace(old, unescaped)
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else:
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expression = "||".join("CHR(%d)" % ord(c) for c in expression)
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return expression
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@staticmethod
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def escape(expression):
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while True:
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index = expression.find("CHR(")
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if index == -1:
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break
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firstIndex = index
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index = expression[firstIndex:].find("))")
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if index == -1:
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raise sqlmapSyntaxException, "Unenclosed ) in '%s'" % expression
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lastIndex = firstIndex + index + 1
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old = expression[firstIndex:lastIndex]
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oldUpper = old.upper()
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oldUpper = oldUpper.replace("CHR(", "").replace(")", "")
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oldUpper = oldUpper.split("||")
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escaped = "'%s'" % "".join([chr(int(char)) for char in oldUpper])
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expression = expression.replace(old, escaped)
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return expression
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def getFingerprint(self):
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value = ""
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wsOsFp = formatFingerprint("web server", kb.headersFp)
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if wsOsFp:
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value += "%s\n" % wsOsFp
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if self.banner:
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dbmsOsFp = formatFingerprint("back-end DBMS", kb.bannerFp)
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if dbmsOsFp:
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value += "%s\n" % dbmsOsFp
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value += "back-end DBMS: "
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if not conf.extensiveFp:
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value += "PostgreSQL"
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return value
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actVer = formatDBMSfp()
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blank = " " * 15
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value += "active fingerprint: %s" % actVer
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if kb.bannerFp:
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banVer = kb.bannerFp["dbmsVersion"]
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banVer = formatDBMSfp([banVer])
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value += "\n%sbanner parsing fingerprint: %s" % (blank, banVer)
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htmlErrorFp = getHtmlErrorFp()
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if htmlErrorFp:
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value += "\n%shtml error message fingerprint: %s" % (blank, htmlErrorFp)
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return value
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def checkDbms(self):
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"""
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Reference for fingerprint: http://www.postgresql.org/docs/8.3/interactive/release-8-3.html
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"""
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if conf.dbms in PGSQL_ALIASES:
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setDbms("PostgreSQL")
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self.getPrematureBanner("VERSION()")
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if not conf.extensiveFp:
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return True
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logMsg = "testing PostgreSQL"
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logger.info(logMsg)
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randInt = str(randomInt(1))
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query = "COALESCE(%s, NULL)" % randInt
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if inject.getValue(query) == randInt:
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logMsg = "confirming PostgreSQL"
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logger.info(logMsg)
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query = "LENGTH('%s')" % randInt
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if not inject.getValue(query) == "1":
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warnMsg = "the back-end DMBS is not PostgreSQL"
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logger.warn(warnMsg)
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return False
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setDbms("PostgreSQL")
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self.getPrematureBanner("VERSION()")
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if not conf.extensiveFp:
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return True
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transTimeCasted = inject.getValue("SUBSTR(TRANSACTION_TIMESTAMP()::text, 1, 1)") in ( "1", "2" )
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transTime = inject.getValue("SUBSTR(TRANSACTION_TIMESTAMP(), 1, 1)") in ( "1", "2" )
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if transTimeCasted and not transTime:
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kb.dbmsVersion = [">= 8.3.0"]
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elif transTime:
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kb.dbmsVersion = [">= 8.2.0", "< 8.3.0"]
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elif inject.getValue("GREATEST(5, 9, 1)") == "9":
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kb.dbmsVersion = [">= 8.1.0", "< 8.2.0"]
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elif inject.getValue("WIDTH_BUCKET(5.35, 0.024, 10.06, 5)") == "3":
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kb.dbmsVersion = [">= 8.0.0", "< 8.1.0"]
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elif inject.getValue("SUBSTR(MD5('sqlmap'), 1, 1)"):
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kb.dbmsVersion = [">= 7.4.0", "< 8.0.0"]
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elif inject.getValue("SUBSTR(CURRENT_SCHEMA(), 1, 1)") == "p":
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kb.dbmsVersion = [">= 7.3.0", "< 7.4.0"]
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elif inject.getValue("BIT_LENGTH(1)") == "8":
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kb.dbmsVersion = [">= 7.2.0", "< 7.3.0"]
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elif inject.getValue("SUBSTR(QUOTE_LITERAL('a'), 2, 1)") == "a":
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kb.dbmsVersion = [">= 7.1.0", "< 7.2.0"]
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elif inject.getValue("POW(2, 3)") == "8":
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kb.dbmsVersion = [">= 7.0.0", "< 7.1.0"]
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elif inject.getValue("MAX('a')") == "a":
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kb.dbmsVersion = [">= 6.5.0", "< 6.5.3"]
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elif re.search("([\d\.]+)", inject.getValue("SUBSTR(VERSION(), 12, 5)")):
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kb.dbmsVersion = [">= 6.4.0", "< 6.5.0"]
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elif inject.getValue("SUBSTR(CURRENT_DATE, 1, 1)") == "2":
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kb.dbmsVersion = [">= 6.3.0", "< 6.4.0"]
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elif inject.getValue("SUBSTRING('sqlmap', 1, 1)") == "s":
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kb.dbmsVersion = [">= 6.2.0", "< 6.3.0"]
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else:
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kb.dbmsVersion = ["< 6.2.0"]
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return True
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else:
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warnMsg = "the back-end DMBS is not PostgreSQL"
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logger.warn(warnMsg)
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return False
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def forceDbmsEnum(self):
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if conf.db not in PGSQL_SYSTEM_DBS and conf.db != "public":
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conf.db = "public"
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warnMsg = "on PostgreSQL it is only possible to enumerate "
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warnMsg += "on the current schema and on system databases, "
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warnMsg += "sqlmap is going to use 'public' schema as "
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warnMsg += "database name"
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logger.warn(warnMsg)
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