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55 lines
1.2 KiB
Python
55 lines
1.2 KiB
Python
#!/usr/bin/env python
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"""
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Andrew Kitis of Asterisk Information Security
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@nanomebia
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www.asteriskinfosec.com.au
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04-2014
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modified from the original "randomcase.py" script provided by the sqlmap developers
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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 each keyword character with lower case value
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Tested against:
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* Microsoft SQL Server 2005
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Notes:
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* Useful to bypass very weak and bespoke web application firewalls
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that has poorly written permissive regular expressions
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* This tamper script should work against all (?) databases
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* Some web applications don't like uppercase characters, so forcing
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everything to lowercase can work.
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>>> tamper('INSERT')
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'insert'
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"""
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retVal = payload
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if payload:
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for match in re.finditer(r"[A-Za-z_]+", retVal):
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word = match.group()
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_ = str()
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for i in xrange(len(word)):
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_ += word[i].lower()
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retVal = retVal.replace(word, _)
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return retVal
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