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#!/usr/bin/env python
"""
Copyright (c) 2006-2025 sqlmap developers (https://sqlmap.org)
See the file 'LICENSE' for copying permission
"""
from lib.core.common import Backend
from lib.core.common import Format
from lib.core.convert import getUnicode
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.enums import OS
from lib.core.session import setDbms
from lib.core.settings import MSSQL_ALIASES
from lib.request import inject
from plugins.generic.fingerprint import Fingerprint as GenericFingerprint
class Fingerprint(GenericFingerprint):
def __init__(self):
GenericFingerprint.__init__(self, DBMS.MSSQL)
def getFingerprint(self):
value = ""
wsOsFp = Format.getOs("web server", kb.headersFp)
if wsOsFp:
value += "%s\n" % wsOsFp
if kb.data.banner:
dbmsOsFp = Format.getOs("back-end DBMS", kb.bannerFp)
if dbmsOsFp:
value += "%s\n" % dbmsOsFp
value += "back-end DBMS: "
actVer = Format.getDbms()
if not conf.extensiveFp:
value += actVer
return value
blank = " " * 15
value += "active fingerprint: %s" % actVer
if kb.bannerFp:
release = kb.bannerFp.get("dbmsRelease")
version = kb.bannerFp.get("dbmsVersion")
servicepack = kb.bannerFp.get("dbmsServicePack")
if release and version and servicepack:
banVer = "%s %s " % (DBMS.MSSQL, release)
banVer += "Service Pack %s " % servicepack
banVer += "version %s" % version
value += "\n%sbanner parsing fingerprint: %s" % (blank, banVer)
htmlErrorFp = Format.getErrorParsedDBMSes()
if htmlErrorFp:
value += "\n%shtml error message fingerprint: %s" % (blank, htmlErrorFp)
return value
def checkDbms(self):
if not conf.extensiveFp and Backend.isDbmsWithin(MSSQL_ALIASES):
setDbms("%s %s" % (DBMS.MSSQL, Backend.getVersion()))
self.getBanner()
Backend.setOs(OS.WINDOWS)
return True
infoMsg = "testing %s" % DBMS.MSSQL
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:
result = inject.checkBooleanExpression("UNICODE(SQUARE(NULL)) IS NULL")
if result:
infoMsg = "confirming %s" % DBMS.MSSQL
logger.info(infoMsg)
for version, check in (
("Azure", "@@VERSION LIKE '%Azure%'"),
("2025", "CHARINDEX('17.0.',@@VERSION)>0"),
("2022", "GREATEST(NULL,NULL) IS NULL"),
("2019", "CHARINDEX('15.0.',@@VERSION)>0"),
("2017", "TRIM(NULL) IS NULL"),
("2016", "ISJSON(NULL) IS NULL"),
("2014", "CHARINDEX('12.0.',@@VERSION)>0"),
("2012", "CONCAT(NULL,NULL)=CONCAT(NULL,NULL)"),
("2008", "SYSDATETIME()=SYSDATETIME()"),
("2005", "XACT_STATE()=XACT_STATE()"),
("2000", "HOST_NAME()=HOST_NAME()"),
):
result = inject.checkBooleanExpression(check)
if result:
Backend.setVersion(version)
break
if Backend.getVersion():
setDbms("%s %s" % (DBMS.MSSQL, Backend.getVersion()))
else:
setDbms(DBMS.MSSQL)
self.getBanner()
Backend.setOs(OS.WINDOWS)
return True
else:
warnMsg = "the back-end DBMS is not %s" % DBMS.MSSQL
logger.warning(warnMsg)
return False
def checkDbmsOs(self, detailed=False):
if Backend.getOs() and Backend.getOsVersion() and Backend.getOsServicePack():
return
if not Backend.getOs():
Backend.setOs(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" % Backend.getOs()
self.createSupportTbl(self.fileTblName, self.tblField, "varchar(1000)")
inject.goStacked("INSERT INTO %s(%s) VALUES (%s)" % (self.fileTblName, self.tblField, "@@VERSION"))
# Reference: https://en.wikipedia.org/wiki/Comparison_of_Microsoft_Windows_versions
# https://en.wikipedia.org/wiki/Windows_NT#Releases
versions = {
"NT": ("4.0", (6, 5, 4, 3, 2, 1)),
"2000": ("5.0", (4, 3, 2, 1)),
"XP": ("5.1", (3, 2, 1)),
"2003": ("5.2", (2, 1)),
"Vista or 2008": ("6.0", (2, 1)),
"7 or 2008 R2": ("6.1", (1, 0)),
"8 or 2012": ("6.2", (0,)),
"8.1 or 2012 R2": ("6.3", (0,)),
"10 or 11 or 2016 or 2019 or 2022": ("10.0", (0,))
}
# Get back-end DBMS underlying operating system version
for version, data in versions.items():
query = "EXISTS(SELECT %s FROM %s WHERE %s " % (self.tblField, self.fileTblName, self.tblField)
query += "LIKE '%Windows NT " + data[0] + "%')"
result = inject.checkBooleanExpression(query)
if result:
Backend.setOsVersion(version)
infoMsg += " %s" % Backend.getOsVersion()
break
if not Backend.getOsVersion():
Backend.setOsVersion("2003")
Backend.setOsServicePack(2)
warnMsg = "unable to fingerprint the underlying operating "
warnMsg += "system version, assuming it is Windows "
warnMsg += "%s Service Pack %d" % (Backend.getOsVersion(), Backend.getOsServicePack())
logger.warning(warnMsg)
self.cleanup(onlyFileTbl=True)
return
# Get back-end DBMS underlying operating system service pack
sps = versions[Backend.getOsVersion()][1]
for sp in sps:
query = "EXISTS(SELECT %s FROM %s WHERE %s " % (self.tblField, self.fileTblName, self.tblField)
query += "LIKE '%Service Pack " + getUnicode(sp) + "%')"
result = inject.checkBooleanExpression(query)
if result:
Backend.setOsServicePack(sp)
break
if not Backend.getOsServicePack():
debugMsg = "assuming the operating system has no service pack"
logger.debug(debugMsg)
Backend.setOsServicePack(0)
if Backend.getOsVersion():
infoMsg += " Service Pack %d" % Backend.getOsServicePack()
logger.info(infoMsg)
self.cleanup(onlyFileTbl=True)
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