sqlmap/tamper/appendnullbyte.py

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#!/usr/bin/env python
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"""
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Copyright (c) 2006-2015 sqlmap developers (http://sqlmap.org/)
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See the file 'doc/COPYING' for copying permission
"""
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.LOWEST
def dependencies():
pass
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def tamper(payload, **kwargs):
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"""
Appends encoded NULL byte character at the end of payload
Requirement:
* Microsoft Access
Notes:
* Useful to bypass weak web application firewalls when the back-end
database management system is Microsoft Access - further uses are
also possible
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Reference: http://projects.webappsec.org/w/page/13246949/Null-Byte-Injection
>>> tamper('1 AND 1=1')
'1 AND 1=1%00'
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"""
return "%s%%00" % payload if payload else payload