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53 lines
1.3 KiB
Python
53 lines
1.3 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 os
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import re
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from lib.core.common import singleTimeWarnMessage
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from lib.core.enums import DBMS
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from lib.core.enums import PRIORITY
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__priority__ = PRIORITY.HIGHEST
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def dependencies():
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singleTimeWarnMessage("tamper script '%s' is unlikely to work against %s" % (os.path.basename(__file__).split(".")[0], DBMS.PGSQL))
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def tamper(payload):
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"""
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Replaces all occurances of operator equal ('=') with operator 'LIKE'
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Example:
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* Input: SELECT * FROM users WHERE id=1
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* Output: SELECT * FROM users WHERE id LIKE 1
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Tested against:
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* Microsoft SQL Server 2005
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* MySQL 4, 5.0 and 5.5
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Notes:
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* Useful to bypass weak and bespoke web application firewalls that
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filter the equal character ('=')
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* The LIKE operator is SQL standard. Hence, this tamper script
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should work against all (?) databases
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"""
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def process(match):
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word = match.group()
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word = "%sLIKE%s" % (" " if word[0]!=" " else "", " " if word[-1]!=" " else "")
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return word
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retVal = payload
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if payload:
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retVal = re.sub(r"\s*=\s*", lambda match: process(match), retVal)
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return retVal
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