sqlmap/plugins/dbms/firebird/fingerprint.py
Miroslav Stampar d9a931f77a Minor cleanup
2017-04-14 13:14:53 +02:00

154 lines
4.5 KiB
Python

#!/usr/bin/env python
"""
Copyright (c) 2006-2017 sqlmap developers (http://sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""
import re
from lib.core.common import Backend
from lib.core.common import Format
from lib.core.common import getUnicode
from lib.core.common import randomRange
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 FIREBIRD_ALIASES
from lib.core.settings import METADB_SUFFIX
from lib.request import inject
from plugins.generic.fingerprint import Fingerprint as GenericFingerprint
class Fingerprint(GenericFingerprint):
def __init__(self):
GenericFingerprint.__init__(self, DBMS.FIREBIRD)
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
actVer = Format.getDbms() + " (%s)" % (self._dialectCheck())
blank = " " * 15
value += "active fingerprint: %s" % actVer
if kb.bannerFp:
banVer = kb.bannerFp["dbmsVersion"]
if re.search("-log$", kb.data.banner):
banVer += ", logging enabled"
banVer = Format.getDbms([banVer])
value += "\n%sbanner parsing fingerprint: %s" % (blank, banVer)
htmlErrorFp = Format.getErrorParsedDBMSes()
if htmlErrorFp:
value += "\n%shtml error message fingerprint: %s" % (blank, htmlErrorFp)
return value
def _sysTablesCheck(self):
retVal = None
table = (
("1.0", ("EXISTS(SELECT CURRENT_USER FROM RDB$DATABASE)",)),
("1.5", ("NULLIF(%d,%d) IS NULL", "EXISTS(SELECT CURRENT_TRANSACTION FROM RDB$DATABASE)")),
("2.0", ("EXISTS(SELECT CURRENT_TIME(0) FROM RDB$DATABASE)", "BIT_LENGTH(%d)>0", "CHAR_LENGTH(%d)>0")),
("2.1", ("BIN_XOR(%d,%d)=0", "PI()>0.%d", "RAND()<1.%d", "FLOOR(1.%d)>=0")),
# TODO: add test for Firebird 2.5
)
for i in xrange(len(table)):
version, checks = table[i]
failed = False
check = checks[randomRange(0, len(checks) - 1)].replace("%d", getUnicode(randomRange(1, 100)))
result = inject.checkBooleanExpression(check)
if result:
retVal = version
else:
failed = True
break
if failed:
break
return retVal
def _dialectCheck(self):
retVal = None
if Backend.getIdentifiedDbms():
result = inject.checkBooleanExpression("EXISTS(SELECT CURRENT_DATE FROM RDB$DATABASE)")
retVal = "dialect 3" if result else "dialect 1"
return retVal
def checkDbms(self):
if not conf.extensiveFp and Backend.isDbmsWithin(FIREBIRD_ALIASES):
setDbms("%s %s" % (DBMS.FIREBIRD, Backend.getVersion()))
self.getBanner()
return True
infoMsg = "testing %s" % DBMS.FIREBIRD
logger.info(infoMsg)
result = inject.checkBooleanExpression("(SELECT COUNT(*) FROM RDB$DATABASE WHERE [RANDNUM]=[RANDNUM])>0")
if result:
infoMsg = "confirming %s" % DBMS.FIREBIRD
logger.info(infoMsg)
result = inject.checkBooleanExpression("EXISTS(SELECT CURRENT_USER FROM RDB$DATABASE)")
if not result:
warnMsg = "the back-end DBMS is not %s" % DBMS.FIREBIRD
logger.warn(warnMsg)
return False
setDbms(DBMS.FIREBIRD)
infoMsg = "actively fingerprinting %s" % DBMS.FIREBIRD
logger.info(infoMsg)
version = self._sysTablesCheck()
if version is not None:
Backend.setVersion(version)
setDbms("%s %s" % (DBMS.FIREBIRD, version))
self.getBanner()
return True
else:
warnMsg = "the back-end DBMS is not %s" % DBMS.FIREBIRD
logger.warn(warnMsg)
return False
def forceDbmsEnum(self):
conf.db = "%s%s" % (DBMS.FIREBIRD, METADB_SUFFIX)
if conf.tbl:
conf.tbl = conf.tbl.upper()