mirror of
https://github.com/sqlmapproject/sqlmap.git
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984 lines
40 KiB
Python
984 lines
40 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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Copyright (c) 2006-2011 sqlmap developers (http://www.sqlmap.org/)
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See the file 'doc/COPYING' for copying permission
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"""
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import httplib
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import logging
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import re
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import socket
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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 aliasToDbmsEnum
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from lib.core.common import arrayizeValue
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from lib.core.common import Backend
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from lib.core.common import beep
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from lib.core.common import extractRegexResult
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from lib.core.common import findDynamicContent
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from lib.core.common import Format
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from lib.core.common import getComparePageRatio
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from lib.core.common import getCompiledRegex
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from lib.core.common import getSortedInjectionTests
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from lib.core.common import getUnicode
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from lib.core.common import intersect
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from lib.core.common import listToStrValue
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from lib.core.common import parseFilePaths
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from lib.core.common import popValue
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from lib.core.common import pushValue
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from lib.core.common import randomInt
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from lib.core.common import randomStr
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from lib.core.common import readInput
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from lib.core.common import showStaticWords
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from lib.core.common import singleTimeWarnMessage
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from lib.core.common import trimAlphaNum
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from lib.core.common import wasLastRequestDBMSError
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from lib.core.common import wasLastRequestHTTPError
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from lib.core.common import DynamicContentItem
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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 paths
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from lib.core.datatype import AttribDict
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from lib.core.datatype import InjectionDict
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from lib.core.enums import HTTPHEADER
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from lib.core.enums import HTTPMETHOD
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from lib.core.enums import NULLCONNECTION
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from lib.core.enums import PAYLOAD
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from lib.core.enums import PLACE
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from lib.core.exception import sqlmapConnectionException
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from lib.core.exception import sqlmapGenericException
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from lib.core.exception import sqlmapNoneDataException
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from lib.core.exception import sqlmapSilentQuitException
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from lib.core.exception import sqlmapUserQuitException
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from lib.core.session import setDynamicMarkings
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from lib.core.settings import CONSTANT_RATIO
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from lib.core.settings import UNKNOWN_DBMS_VERSION
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from lib.core.settings import LOWER_RATIO_BOUND
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from lib.core.settings import UPPER_RATIO_BOUND
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from lib.core.settings import IDS_WAF_CHECK_PAYLOAD
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from lib.core.threads import getCurrentThreadData
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from lib.request.connect import Connect as Request
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from lib.request.inject import checkBooleanExpression
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from lib.request.templates import getPageTemplate
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from lib.techniques.union.test import unionTest
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from lib.techniques.union.use import configUnion
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def checkSqlInjection(place, parameter, value):
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# Store here the details about boundaries and payload used to
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# successfully inject
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injection = InjectionDict()
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# Localized thread data needed for some methods
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threadData = getCurrentThreadData()
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# Set the flag for sql injection test mode
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kb.testMode = True
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for test in getSortedInjectionTests():
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try:
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if kb.endDetection:
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break
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title = test.title
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stype = test.stype
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clause = test.clause
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if stype == PAYLOAD.TECHNIQUE.UNION:
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configUnion(test.request.char)
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if "[CHAR]" in title:
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if conf.uChar is None:
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continue
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else:
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title = title.replace("[CHAR]", conf.uChar)
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elif "[RANDNUM]" in title or "(NULL)" in title:
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title = title.replace("[RANDNUM]", "random number")
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if test.request.columns == "[COLSTART]-[COLSTOP]":
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if conf.uCols is None:
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continue
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else:
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title = title.replace("[COLSTART]", str(conf.uColsStart))
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title = title.replace("[COLSTOP]", str(conf.uColsStop))
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elif conf.uCols is not None:
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debugMsg = "skipping test '%s' because the user " % title
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debugMsg += "provided custom column range %s" % conf.uCols
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logger.debug(debugMsg)
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continue
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# Skip test if the user's wants to test only for a specific
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# technique
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if conf.tech and isinstance(conf.tech, list) and stype not in conf.tech:
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debugMsg = "skipping test '%s' because the user " % title
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debugMsg += "specified to test only for "
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debugMsg += "%s techniques" % " & ".join(map(lambda x: PAYLOAD.SQLINJECTION[x], conf.tech))
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logger.debug(debugMsg)
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continue
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# Skip test if it is the same SQL injection type already
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# identified by another test
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if injection.data and stype in injection.data:
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debugMsg = "skipping test '%s' because " % title
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debugMsg += "the payload for %s has " % PAYLOAD.SQLINJECTION[stype]
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debugMsg += "already been identified"
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logger.debug(debugMsg)
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continue
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# Skip tests if title is not included by the given filter
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if conf.testFilter:
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if not any(re.search(conf.testFilter, str(item), re.I) for item in [test.title, test.vector,\
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test.details.dbms if "details" in test and "dbms" in test.details else ""]):
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debugMsg = "skipping test '%s' because " % title
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debugMsg += "it's name/vector/dbms is not included by the given filter"
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logger.debug(debugMsg)
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continue
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else:
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# Skip test if the risk is higher than the provided (or default)
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# value
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# Parse test's <risk>
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if test.risk > conf.risk:
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debugMsg = "skipping test '%s' because the risk (%d) " % (title, test.risk)
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debugMsg += "is higher than the provided (%d)" % conf.risk
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logger.debug(debugMsg)
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continue
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# Skip test if the level is higher than the provided (or default)
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# value
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# Parse test's <level>
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if test.level > conf.level:
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debugMsg = "skipping test '%s' because the level (%d) " % (title, test.level)
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debugMsg += "is higher than the provided (%d)" % conf.level
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logger.debug(debugMsg)
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continue
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# Skip DBMS-specific test if it does not match either the
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# previously identified or the user's provided DBMS (either
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# from program switch or from parsed error message(s))
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if "details" in test and "dbms" in test.details:
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dbms = test.details.dbms
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else:
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dbms = None
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if dbms is not None:
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if injection.dbms is not None and not intersect(injection.dbms, dbms):
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debugMsg = "skipping test '%s' because " % title
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debugMsg += "the back-end DBMS identified is "
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debugMsg += "%s" % injection.dbms
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logger.debug(debugMsg)
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continue
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if conf.dbms is not None and not intersect(conf.dbms.lower(), [value.lower() for value in arrayizeValue(dbms)]):
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debugMsg = "skipping test '%s' because " % title
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debugMsg += "the provided DBMS is %s" % conf.dbms
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logger.debug(debugMsg)
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continue
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if len(Backend.getErrorParsedDBMSes()) > 0 and not intersect(dbms, Backend.getErrorParsedDBMSes()) and kb.skipOthersDbms is None:
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msg = "parsed error message(s) showed that the "
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msg += "back-end DBMS could be %s. " % Format.getErrorParsedDBMSes()
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msg += "Do you want to skip test payloads specific for other DBMSes? [Y/n]"
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if conf.realTest or readInput(msg, default="Y") in ("y", "Y"):
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kb.skipOthersDbms = Backend.getErrorParsedDBMSes()
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else:
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kb.skipOthersDbms = []
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if kb.skipOthersDbms and not intersect(dbms, kb.skipOthersDbms):
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debugMsg = "skipping test '%s' because " % title
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debugMsg += "the parsed error message(s) showed "
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debugMsg += "that the back-end DBMS could be "
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debugMsg += "%s" % Format.getErrorParsedDBMSes()
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logger.debug(debugMsg)
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continue
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# Skip test if it does not match the same SQL injection clause
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# already identified by another test
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clauseMatch = False
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for clauseTest in clause:
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if injection.clause is not None and clauseTest in injection.clause:
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clauseMatch = True
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break
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if clause != [ 0 ] and injection.clause and injection.clause != [ 0 ] and not clauseMatch:
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debugMsg = "skipping test '%s' because the clauses " % title
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debugMsg += "differs from the clause already identified"
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logger.debug(debugMsg)
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continue
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# Skip test if the user provided custom character
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if conf.uChar is not None and ("random number" in title or "(NULL)" in title):
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debugMsg = "skipping test '%s' because the user " % title
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debugMsg += "provided a specific character, %s" % conf.uChar
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logger.debug(debugMsg)
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continue
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infoMsg = "testing '%s'" % title
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logger.info(infoMsg)
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# Force back-end DBMS according to the current
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# test value for proper payload unescaping
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Backend.forceDbms(dbms[0] if isinstance(dbms, list) else dbms)
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# Parse test's <request>
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comment = agent.getComment(test.request) if len(conf.boundaries) > 1 else None
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fstPayload = agent.cleanupPayload(test.request.payload, origValue=value)
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for boundary in conf.boundaries:
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injectable = False
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# Skip boundary if the level is higher than the provided (or
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# default) value
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# Parse boundary's <level>
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if boundary.level > conf.level:
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continue
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# Skip boundary if it does not match against test's <clause>
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# Parse test's <clause> and boundary's <clause>
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clauseMatch = False
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for clauseTest in test.clause:
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if clauseTest in boundary.clause:
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clauseMatch = True
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break
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if test.clause != [ 0 ] and boundary.clause != [ 0 ] and not clauseMatch:
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continue
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# Skip boundary if it does not match against test's <where>
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# Parse test's <where> and boundary's <where>
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whereMatch = False
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for where in test.where:
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if where in boundary.where:
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whereMatch = True
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break
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if not whereMatch:
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continue
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# Parse boundary's <prefix>, <suffix> and <ptype>
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prefix = boundary.prefix if boundary.prefix else ""
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suffix = boundary.suffix if boundary.suffix else ""
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ptype = boundary.ptype
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# If the previous injections succeeded, we know which prefix,
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# suffix and parameter type to use for further tests, no
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# need to cycle through the boundaries for the following tests
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condBound = (injection.prefix is not None and injection.suffix is not None)
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condBound &= (injection.prefix != prefix or injection.suffix != suffix)
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condType = injection.ptype is not None and injection.ptype != ptype
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if condBound or condType:
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continue
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# For each test's <where>
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for where in test.where:
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templatePayload = None
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vector = None
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# Threat the parameter original value according to the
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# test's <where> tag
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if where == PAYLOAD.WHERE.ORIGINAL:
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origValue = value
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elif where == PAYLOAD.WHERE.NEGATIVE:
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# Use different page template than the original
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# one as we are changing parameters value, which
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# will likely result in a different content
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if not conf.logicNegative:
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origValue = "-%s" % randomInt()
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else:
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origValue = "%s AND %s=%s" % (origValue, randomInt(), randomInt())
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templatePayload = agent.payload(place, parameter, newValue=origValue, where=where)
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elif where == PAYLOAD.WHERE.REPLACE:
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origValue = ""
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kb.pageTemplate, kb.errorIsNone = getPageTemplate(templatePayload, place)
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# Forge request payload by prepending with boundary's
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# prefix and appending the boundary's suffix to the
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# test's ' <payload><comment> ' string
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boundPayload = agent.prefixQuery(fstPayload, prefix, where, clause)
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boundPayload = agent.suffixQuery(boundPayload, comment, suffix, where)
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reqPayload = agent.payload(place, parameter, newValue=boundPayload, where=where)
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# Perform the test's request and check whether or not the
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# payload was successful
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# Parse test's <response>
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for method, check in test.response.items():
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check = agent.cleanupPayload(check, origValue=value)
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# In case of boolean-based blind SQL injection
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if method == PAYLOAD.METHOD.COMPARISON:
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# Generate payload used for comparison
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def genCmpPayload():
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sndPayload = agent.cleanupPayload(test.response.comparison, origValue=value)
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# Forge response payload by prepending with
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# boundary's prefix and appending the boundary's
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# suffix to the test's ' <payload><comment> '
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# string
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boundPayload = agent.prefixQuery(sndPayload, prefix, where, clause)
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boundPayload = agent.suffixQuery(boundPayload, comment, suffix, where)
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cmpPayload = agent.payload(place, parameter, newValue=boundPayload, where=where)
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return cmpPayload
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# Useful to set kb.matchRatio at first based on
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# the False response content
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kb.matchRatio = None
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_ = Request.queryPage(genCmpPayload(), place, raise404=False)
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# If in the comparing stage there was an error
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# then anything non-error will be considered as True
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if kb.errorIsNone and kb.matchRatio is None:
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kb.matchRatio = LOWER_RATIO_BOUND
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# Perform the test's True request
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trueResult = Request.queryPage(reqPayload, place, raise404=False)
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if trueResult:
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falseResult = Request.queryPage(genCmpPayload(), place, raise404=False)
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# Perform the test's False request
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if not falseResult:
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infoMsg = "%s parameter '%s' is '%s' injectable " % (place, parameter, title)
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logger.info(infoMsg)
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injectable = True
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# In case of error-based SQL injection
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elif method == PAYLOAD.METHOD.GREP:
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# Perform the test's request and grep the response
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# body for the test's <grep> regular expression
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try:
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page, headers = Request.queryPage(reqPayload, place, content=True, raise404=False)
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output = extractRegexResult(check, page, re.DOTALL | re.IGNORECASE) \
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or extractRegexResult(check, listToStrValue(headers.headers \
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if headers else None), re.DOTALL | re.IGNORECASE) \
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or extractRegexResult(check, threadData.lastRedirectMsg[1] \
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if threadData.lastRedirectMsg and threadData.lastRedirectMsg[0] == \
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threadData.lastRequestUID else None, re.DOTALL | re.IGNORECASE)
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if output:
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result = output == "1"
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if result:
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infoMsg = "%s parameter '%s' is '%s' injectable " % (place, parameter, title)
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logger.info(infoMsg)
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injectable = True
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except sqlmapConnectionException, msg:
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debugMsg = "problem occured most likely because the "
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debugMsg += "server hasn't recovered as expected from the "
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debugMsg += "error-based payload used ('%s')" % msg
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logger.debug(debugMsg)
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# In case of time-based blind or stacked queries
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# SQL injections
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elif method == PAYLOAD.METHOD.TIME:
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# Perform the test's request
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trueResult = Request.queryPage(reqPayload, place, timeBasedCompare=True, raise404=False)
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if trueResult:
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# Confirm test's results
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trueResult = Request.queryPage(reqPayload, place, timeBasedCompare=True, raise404=False)
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if trueResult:
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infoMsg = "%s parameter '%s' is '%s' injectable " % (place, parameter, title)
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logger.info(infoMsg)
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injectable = True
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# In case of UNION query SQL injection
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elif method == PAYLOAD.METHOD.UNION:
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# Test for UNION injection and set the sample
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# payload as well as the vector.
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# NOTE: vector is set to a tuple with 6 elements,
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# used afterwards by Agent.forgeInbandQuery()
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# method to forge the UNION query payload
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configUnion(test.request.char, test.request.columns)
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if not Backend.getIdentifiedDbms():
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warnMsg = "using unescaped version of the test "
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warnMsg += "because of zero knowledge of the "
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warnMsg += "back-end DBMS. you can try to "
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warnMsg += "explicitly set it using the --dbms "
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warnMsg += "option"
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singleTimeWarnMessage(warnMsg)
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# Test for UNION query SQL injection
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reqPayload, vector = unionTest(comment, place, parameter, value, prefix, suffix)
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if isinstance(reqPayload, basestring):
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infoMsg = "%s parameter '%s' is '%s' injectable" % (place, parameter, title)
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logger.info(infoMsg)
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injectable = True
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# Overwrite 'where' because it can be set
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# by unionTest() directly
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where = vector[6]
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kb.previousMethod = method
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# If the injection test was successful feed the injection
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# object with the test's details
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if injectable is True:
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# Feed with the boundaries details only the first time a
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# test has been successful
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if injection.place is None or injection.parameter is None:
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if place in (PLACE.UA, PLACE.REFERER, PLACE.HOST):
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injection.parameter = place
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else:
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injection.parameter = parameter
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injection.place = place
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injection.ptype = ptype
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injection.prefix = prefix
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injection.suffix = suffix
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injection.clause = clause
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# Feed with test details every time a test is successful
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if hasattr(test, "details"):
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for dKey, dValue in test.details.items():
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if dKey == "dbms":
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if not isinstance(dValue, list):
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injection.dbms = Backend.setDbms(dValue)
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else:
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Backend.forceDbms(dValue[0], True)
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elif dKey == "dbms_version" and injection.dbms_version is None:
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injection.dbms_version = Backend.setVersion(dValue)
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elif dKey == "os" and injection.os is None:
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injection.os = Backend.setOs(dValue)
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if vector is None and "vector" in test and test.vector is not None:
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vector = "%s%s" % (test.vector, comment or "")
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injection.data[stype] = AttribDict()
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injection.data[stype].title = title
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injection.data[stype].payload = agent.removePayloadDelimiters(reqPayload)
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injection.data[stype].where = where
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injection.data[stype].vector = vector
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injection.data[stype].comment = comment
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injection.data[stype].templatePayload = templatePayload
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injection.data[stype].matchRatio = kb.matchRatio
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injection.conf.textOnly = conf.textOnly
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injection.conf.titles = conf.titles
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injection.conf.string = conf.string
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injection.conf.regexp = conf.regexp
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injection.conf.optimize = conf.optimize
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if conf.beep or conf.realTest:
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beep()
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# There is no need to perform this test for other
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# <where> tags
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break
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if injectable is True:
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# There is no need to perform this test with others
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# boundaries
|
|
break
|
|
|
|
# Reset forced back-end DBMS value
|
|
Backend.flushForcedDbms()
|
|
|
|
except KeyboardInterrupt:
|
|
warnMsg = "user aborted during detection phase"
|
|
logger.warn(warnMsg)
|
|
|
|
message = "How do you want to proceed? [(S)kip current test/(e)nd detection phase/(n)ext parameter/(q)uit]"
|
|
choice = readInput(message, default="S", checkBatch=False)
|
|
|
|
if choice[0] in ("s", "S"):
|
|
pass
|
|
elif choice[0] in ("n", "N"):
|
|
return None
|
|
elif choice[0] in ("e", "E"):
|
|
kb.endDetection = True
|
|
elif choice[0] in ("q", "Q"):
|
|
raise sqlmapUserQuitException
|
|
|
|
finally:
|
|
# Reset forced back-end DBMS value
|
|
Backend.flushForcedDbms()
|
|
|
|
Backend.flushForcedDbms(True)
|
|
|
|
# Return the injection object
|
|
if injection.place is not None and injection.parameter is not None:
|
|
if not conf.dropSetCookie and PAYLOAD.TECHNIQUE.BOOLEAN in injection.data and injection.data[PAYLOAD.TECHNIQUE.BOOLEAN].vector.startswith('OR'):
|
|
warnMsg = "in OR boolean-based injections, please consider usage "
|
|
warnMsg += "of switch --drop-set-cookie if you experience any "
|
|
warnMsg += "problems during data retrieval"
|
|
logger.warn(warnMsg)
|
|
|
|
injection = checkFalsePositives(injection)
|
|
return injection
|
|
else:
|
|
return None
|
|
|
|
def checkFalsePositives(injection):
|
|
"""
|
|
Checks for false positives (only in single special cases)
|
|
"""
|
|
|
|
retVal = injection
|
|
|
|
if len(injection.data) == 1 and any(map(lambda x: x in injection.data, [PAYLOAD.TECHNIQUE.BOOLEAN, PAYLOAD.TECHNIQUE.TIME, PAYLOAD.TECHNIQUE.STACKED]))\
|
|
or len(injection.data) == 2 and all(map(lambda x: x in injection.data, [PAYLOAD.TECHNIQUE.TIME, PAYLOAD.TECHNIQUE.STACKED])):
|
|
pushValue(kb.injection)
|
|
|
|
infoMsg = "checking if the injection point on %s " % injection.place
|
|
infoMsg += "parameter '%s' is a false positive" % injection.parameter
|
|
logger.info(infoMsg)
|
|
|
|
kb.injection = injection
|
|
randInt1, randInt2 = int(randomInt(2)) + 1, int(randomInt(2)) + 1
|
|
|
|
# Just in case (also, they have to be different than 0 because of the last test)
|
|
while randInt1 == randInt2:
|
|
randInt2 = int(randomInt(2)) + 1
|
|
|
|
# Simple arithmetic operations which should show basic
|
|
# arithmetic ability of the backend if it's really injectable
|
|
if not checkBooleanExpression("(%d+%d)=%d" % (randInt1, randInt2, randInt1 + randInt2)):
|
|
retVal = None
|
|
elif checkBooleanExpression("%d=%d" % (randInt1, randInt2)):
|
|
retVal = None
|
|
if not checkBooleanExpression("%d=(%d+%d)" % (randInt1 + randInt2, randInt1, randInt2)):
|
|
retVal = None
|
|
elif checkBooleanExpression("%d=%d" % (randInt2, randInt1)):
|
|
retVal = None
|
|
|
|
if retVal is None:
|
|
warnMsg = "false positive injection point detected"
|
|
logger.warn(warnMsg)
|
|
|
|
kb.injection = popValue()
|
|
|
|
return retVal
|
|
|
|
def heuristicCheckSqlInjection(place, parameter):
|
|
if kb.nullConnection:
|
|
debugMsg = "heuristic checking skipped "
|
|
debugMsg += "because NULL connection used"
|
|
logger.debug(debugMsg)
|
|
return
|
|
|
|
prefix = ""
|
|
suffix = ""
|
|
|
|
if conf.prefix or conf.suffix:
|
|
if conf.prefix:
|
|
prefix = conf.prefix
|
|
|
|
if conf.suffix:
|
|
suffix = conf.suffix
|
|
|
|
payload = "%s%s%s" % (prefix, randomStr(length=10, alphabet=['"', '\'', ')', '(']), suffix)
|
|
payload = agent.payload(place, parameter, newValue=payload)
|
|
page, _ = Request.queryPage(payload, place, content=True, raise404=False)
|
|
|
|
parseFilePaths(page)
|
|
|
|
result = wasLastRequestDBMSError()
|
|
|
|
infoMsg = "heuristic test shows that %s " % place
|
|
infoMsg += "parameter '%s' might " % parameter
|
|
|
|
kb.heuristicTest = result
|
|
|
|
if result:
|
|
infoMsg += "be injectable (possible DBMS: %s)" % (Format.getErrorParsedDBMSes() or UNKNOWN_DBMS_VERSION)
|
|
logger.info(infoMsg)
|
|
else:
|
|
infoMsg += "not be injectable"
|
|
logger.warn(infoMsg)
|
|
|
|
return result
|
|
|
|
def simpletonCheckSqlInjection(place, parameter, value):
|
|
"""
|
|
This is a function for the quickest and simplest
|
|
sql injection check (e.g. AND 1=1) - only works
|
|
with integer parameters
|
|
"""
|
|
|
|
result = False
|
|
randInt = randomInt()
|
|
|
|
if value.isdigit():
|
|
payload = "%s AND %d=%d" % (value, randInt, randInt)
|
|
else:
|
|
return False
|
|
|
|
payload = agent.payload(place, parameter, value, payload)
|
|
firstPage, _ = Request.queryPage(payload, place, content=True, raise404=False)
|
|
|
|
if not (wasLastRequestDBMSError() or wasLastRequestHTTPError()):
|
|
if getComparePageRatio(kb.originalPage, firstPage, filtered=True) > CONSTANT_RATIO:
|
|
payload = "%s AND %d=%d" % (value, randInt, randInt+1)
|
|
|
|
payload = agent.payload(place, parameter, value, payload)
|
|
secondPage, _ = Request.queryPage(payload, place, content=True, raise404=False)
|
|
result = getComparePageRatio(firstPage, secondPage, filtered=True) <= CONSTANT_RATIO
|
|
|
|
infoMsg = "simpleton test shows that %s " % place
|
|
infoMsg += "parameter '%s' might " % parameter
|
|
|
|
if result:
|
|
infoMsg += "be injectable"
|
|
logger.info(infoMsg)
|
|
else:
|
|
infoMsg += "not be injectable"
|
|
logger.warn(infoMsg)
|
|
|
|
return result
|
|
|
|
def checkDynParam(place, parameter, value):
|
|
"""
|
|
This function checks if the url parameter is dynamic. If it is
|
|
dynamic, the content of the page differs, otherwise the
|
|
dynamicity might depend on another parameter.
|
|
"""
|
|
|
|
kb.matchRatio = None
|
|
|
|
infoMsg = "testing if %s parameter '%s' is dynamic" % (place, parameter)
|
|
logger.info(infoMsg)
|
|
|
|
randInt = randomInt()
|
|
payload = agent.payload(place, parameter, value, getUnicode(randInt))
|
|
dynResult = Request.queryPage(payload, place, raise404=False)
|
|
|
|
if True == dynResult:
|
|
return False
|
|
|
|
infoMsg = "confirming that %s parameter '%s' is dynamic" % (place, parameter)
|
|
logger.info(infoMsg)
|
|
|
|
randInt = randomInt()
|
|
payload = agent.payload(place, parameter, value, getUnicode(randInt))
|
|
dynResult = Request.queryPage(payload, place, raise404=False)
|
|
|
|
return not dynResult
|
|
|
|
def checkDynamicContent(firstPage, secondPage):
|
|
"""
|
|
This function checks for the dynamic content in the provided pages
|
|
"""
|
|
|
|
if kb.nullConnection:
|
|
debugMsg = "dynamic content checking skipped "
|
|
debugMsg += "because NULL connection used"
|
|
logger.debug(debugMsg)
|
|
return
|
|
|
|
if any(page is None for page in (firstPage, secondPage)):
|
|
warnMsg = "can't check dynamic content "
|
|
warnMsg += "because of lack of page content"
|
|
logger.critical(warnMsg)
|
|
return
|
|
|
|
seqMatcher = getCurrentThreadData().seqMatcher
|
|
seqMatcher.set_seq1(firstPage)
|
|
seqMatcher.set_seq2(secondPage)
|
|
|
|
# In case of an intolerable difference turn on dynamicity removal engine
|
|
if seqMatcher.quick_ratio() <= UPPER_RATIO_BOUND:
|
|
findDynamicContent(firstPage, secondPage)
|
|
|
|
count = 0
|
|
while not Request.queryPage():
|
|
count += 1
|
|
|
|
if count > conf.retries:
|
|
warnMsg = "target url is too dynamic. "
|
|
warnMsg += "switching to --text-only. "
|
|
logger.warn(warnMsg)
|
|
|
|
conf.textOnly = True
|
|
return
|
|
|
|
warnMsg = "target url is heavily dynamic"
|
|
warnMsg += ", sqlmap is going to retry the request"
|
|
logger.critical(warnMsg)
|
|
|
|
secondPage, _ = Request.queryPage(content=True)
|
|
findDynamicContent(firstPage, secondPage)
|
|
|
|
setDynamicMarkings(kb.dynamicMarkings)
|
|
|
|
def checkStability():
|
|
"""
|
|
This function checks if the URL content is stable requesting the
|
|
same page two times with a small delay within each request to
|
|
assume that it is stable.
|
|
|
|
In case the content of the page differs when requesting
|
|
the same page, the dynamicity might depend on other parameters,
|
|
like for instance string matching (--string).
|
|
"""
|
|
|
|
infoMsg = "testing if the url is stable, wait a few seconds"
|
|
logger.info(infoMsg)
|
|
|
|
firstPage = kb.originalPage # set inside checkConnection()
|
|
time.sleep(1)
|
|
secondPage, _ = Request.queryPage(content=True, raise404=False)
|
|
|
|
kb.pageStable = (firstPage == secondPage)
|
|
|
|
if kb.pageStable:
|
|
if firstPage:
|
|
infoMsg = "url is stable"
|
|
logger.info(infoMsg)
|
|
else:
|
|
errMsg = "there was an error checking the stability of page "
|
|
errMsg += "because of lack of content. please check the "
|
|
errMsg += "page request results (and probable errors) by "
|
|
errMsg += "using higher verbosity levels"
|
|
logger.error(errMsg)
|
|
|
|
else:
|
|
warnMsg = "url is not stable, sqlmap will base the page "
|
|
warnMsg += "comparison on a sequence matcher. If no dynamic nor "
|
|
warnMsg += "injectable parameters are detected, or in case of "
|
|
warnMsg += "junk results, refer to user's manual paragraph "
|
|
warnMsg += "'Page comparison' and provide a string or regular "
|
|
warnMsg += "expression to match on"
|
|
logger.warn(warnMsg)
|
|
|
|
message = "how do you want to proceed? [(C)ontinue/(s)tring/(r)egex/(q)uit] "
|
|
if not conf.realTest:
|
|
test = readInput(message, default="C")
|
|
else:
|
|
test = None
|
|
|
|
if test and test[0] in ("q", "Q"):
|
|
raise sqlmapUserQuitException
|
|
|
|
elif test and test[0] in ("s", "S"):
|
|
showStaticWords(firstPage, secondPage)
|
|
|
|
message = "please enter value for parameter 'string': "
|
|
test = readInput(message)
|
|
|
|
if test:
|
|
conf.string = test
|
|
|
|
if kb.nullConnection:
|
|
debugMsg = "turning off NULL connection "
|
|
debugMsg += "support because of string checking"
|
|
logger.debug(debugMsg)
|
|
|
|
kb.nullConnection = None
|
|
else:
|
|
errMsg = "Empty value supplied"
|
|
raise sqlmapNoneDataException, errMsg
|
|
|
|
elif test and test[0] in ("r", "R"):
|
|
message = "please enter value for parameter 'regex': "
|
|
test = readInput(message)
|
|
|
|
if test:
|
|
conf.regex = test
|
|
|
|
if kb.nullConnection:
|
|
debugMsg = "turning off NULL connection "
|
|
debugMsg += "support because of regex checking"
|
|
logger.debug(debugMsg)
|
|
|
|
kb.nullConnection = None
|
|
else:
|
|
errMsg = "Empty value supplied"
|
|
raise sqlmapNoneDataException, errMsg
|
|
|
|
else:
|
|
checkDynamicContent(firstPage, secondPage)
|
|
|
|
return kb.pageStable
|
|
|
|
def checkString():
|
|
if not conf.string:
|
|
return True
|
|
|
|
infoMsg = "testing if the provided string is within the "
|
|
infoMsg += "target URL page content"
|
|
logger.info(infoMsg)
|
|
|
|
page, headers = Request.queryPage(content=True)
|
|
rawResponse = "%s%s" % (listToStrValue(headers.headers if headers else ""), page)
|
|
|
|
if conf.string not in rawResponse:
|
|
warnMsg = "you provided '%s' as the string to " % conf.string
|
|
warnMsg += "match, but such a string is not within the target "
|
|
warnMsg += "URL raw response, sqlmap will carry on anyway"
|
|
logger.warn(warnMsg)
|
|
|
|
return True
|
|
|
|
def checkRegexp():
|
|
if not conf.regexp:
|
|
return True
|
|
|
|
infoMsg = "testing if the provided regular expression matches within "
|
|
infoMsg += "the target URL page content"
|
|
logger.info(infoMsg)
|
|
|
|
page, headers = Request.queryPage(content=True)
|
|
rawResponse = "%s%s" % (listToStrValue(headers.headers if headers else ""), page)
|
|
|
|
if not re.search(conf.regexp, rawResponse, re.I | re.M):
|
|
warnMsg = "you provided '%s' as the regular expression to " % conf.regexp
|
|
warnMsg += "match, but such a regular expression does not have any "
|
|
warnMsg += "match within the target URL raw response, sqlmap "
|
|
warnMsg += "will carry on anyway"
|
|
logger.warn(warnMsg)
|
|
|
|
return True
|
|
|
|
def checkWaf():
|
|
"""
|
|
Reference: http://seclists.org/nmap-dev/2011/q2/att-1005/http-waf-detect.nse
|
|
"""
|
|
|
|
if not conf.checkWaf:
|
|
return False
|
|
|
|
infoMsg = "testing if the target is protected by "
|
|
infoMsg += "some kind of WAF/IPS/IDS"
|
|
logger.info(infoMsg)
|
|
|
|
retVal = False
|
|
|
|
backup = dict(conf.parameters)
|
|
|
|
conf.parameters = dict(backup)
|
|
conf.parameters[PLACE.GET] = "" if not conf.parameters.get(PLACE.GET) else conf.parameters[PLACE.GET] + "&"
|
|
conf.parameters[PLACE.GET] += "%s=%d %s" % (randomStr(), randomInt(), IDS_WAF_CHECK_PAYLOAD)
|
|
|
|
kb.matchRatio = None
|
|
_ = Request.queryPage()
|
|
|
|
if kb.errorIsNone and kb.matchRatio is None:
|
|
kb.matchRatio = LOWER_RATIO_BOUND
|
|
|
|
conf.parameters = dict(backup)
|
|
conf.parameters[PLACE.GET] = "" if not conf.parameters.get(PLACE.GET) else conf.parameters[PLACE.GET] + "&"
|
|
conf.parameters[PLACE.GET] += "%s=%d" % (randomStr(), randomInt())
|
|
|
|
trueResult = Request.queryPage()
|
|
|
|
if trueResult:
|
|
conf.parameters = dict(backup)
|
|
conf.parameters[PLACE.GET] = "" if not conf.parameters.get(PLACE.GET) else conf.parameters[PLACE.GET] + "&"
|
|
conf.parameters[PLACE.GET] += "%s=%d %s" % (randomStr(), randomInt(), IDS_WAF_CHECK_PAYLOAD)
|
|
|
|
falseResult = Request.queryPage()
|
|
|
|
if not falseResult:
|
|
retVal = True
|
|
|
|
conf.parameters = dict(backup)
|
|
|
|
if retVal:
|
|
warnMsg = "it appears that the target is protected. Please "
|
|
warnMsg += "consider usage of tamper scripts (--tamper switch)"
|
|
logger.warn(warnMsg)
|
|
else:
|
|
infoMsg = "it appears that the target is not protected"
|
|
logger.info(infoMsg)
|
|
|
|
return retVal
|
|
|
|
def checkNullConnection():
|
|
"""
|
|
Reference: http://www.wisec.it/sectou.php?id=472f952d79293
|
|
"""
|
|
|
|
infoMsg = "testing NULL connection to the target url"
|
|
logger.info(infoMsg)
|
|
|
|
try:
|
|
page, headers, _ = Request.getPage(method=HTTPMETHOD.HEAD)
|
|
|
|
if not page and HTTPHEADER.CONTENT_LENGTH in headers:
|
|
kb.nullConnection = NULLCONNECTION.HEAD
|
|
|
|
infoMsg = "NULL connection is supported with HEAD header"
|
|
logger.info(infoMsg)
|
|
else:
|
|
page, headers, _ = Request.getPage(auxHeaders={HTTPHEADER.RANGE: "bytes=-1"})
|
|
|
|
if page and len(page) == 1 and HTTPHEADER.CONTENT_RANGE in headers:
|
|
kb.nullConnection = NULLCONNECTION.RANGE
|
|
|
|
infoMsg = "NULL connection is supported with GET header "
|
|
infoMsg += "'%s'" % kb.nullConnection
|
|
logger.info(infoMsg)
|
|
|
|
except sqlmapConnectionException, errMsg:
|
|
errMsg = getUnicode(errMsg)
|
|
raise sqlmapConnectionException, errMsg
|
|
|
|
return kb.nullConnection is not None
|
|
|
|
def checkConnection(suppressOutput=False):
|
|
if not any([conf.proxy, conf.tor]):
|
|
try:
|
|
socket.getaddrinfo(conf.hostname, None)
|
|
except socket.gaierror:
|
|
errMsg = "host '%s' does not exist" % conf.hostname
|
|
raise sqlmapConnectionException, errMsg
|
|
|
|
if not suppressOutput:
|
|
infoMsg = "testing connection to the target url"
|
|
logger.info(infoMsg)
|
|
|
|
try:
|
|
page, _ = Request.queryPage(content=True, noteResponseTime=False)
|
|
kb.originalPage = kb.pageTemplate = page
|
|
|
|
kb.errorIsNone = False
|
|
|
|
if not kb.originalPage and wasLastRequestHTTPError():
|
|
errMsg = "unable to retrieve page content"
|
|
raise sqlmapConnectionException, errMsg
|
|
elif wasLastRequestDBMSError():
|
|
warnMsg = "there is a DBMS error found in the HTTP response body"
|
|
warnMsg += "which could interfere with the results of the tests"
|
|
logger.warn(warnMsg)
|
|
elif wasLastRequestHTTPError():
|
|
warnMsg = "the web server responded with an HTTP error code "
|
|
warnMsg += "which could interfere with the results of the tests"
|
|
logger.warn(warnMsg)
|
|
else:
|
|
kb.errorIsNone = True
|
|
except sqlmapConnectionException, errMsg:
|
|
errMsg = getUnicode(errMsg)
|
|
logger.critical(errMsg)
|
|
|
|
if any(code in kb.httpErrorCodes for code in (httplib.NOT_FOUND, )):
|
|
msg = "it is not recommended to continue in this kind of cases. Do you want to quit and make sure that everything is set up properly? [Y/n] "
|
|
if readInput(msg, default="Y") not in ("n", "N"):
|
|
raise sqlmapSilentQuitException
|
|
else:
|
|
kb.ignoreNotFound = True
|
|
else:
|
|
raise
|
|
|
|
return True
|