2019-05-08 12:47:52 +02:00
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#!/usr/bin/env python
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2011-02-06 23:25:55 +00:00
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"""
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2026-01-01 19:12:07 +01:00
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Copyright (c) 2006-2026 sqlmap developers (https://sqlmap.org)
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2017-10-11 14:50:46 +02:00
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See the file 'LICENSE' for copying permission
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2011-02-06 23:25:55 +00:00
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"""
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import string
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from lib.core.enums import PRIORITY
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__priority__ = PRIORITY.LOWEST
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2011-07-06 21:04:45 +00:00
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def dependencies():
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pass
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2012-12-03 14:27:01 +01:00
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def tamper(payload, **kwargs):
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2011-02-06 23:25:55 +00:00
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"""
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2018-07-31 02:18:33 +02:00
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URL-encodes all characters in a given payload (not processing already encoded) (e.g. SELECT -> %53%45%4C%45%43%54)
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2011-07-06 21:04:45 +00:00
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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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* Oracle 10g
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* PostgreSQL 8.3, 8.4, 9.0
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Notes:
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2018-07-31 01:17:11 +02:00
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* Useful to bypass very weak web application firewalls that do not url-decode the request before processing it through their ruleset
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* The web server will anyway pass the url-decoded version behind, hence it should work against any DBMS
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2013-03-13 21:57:09 +01:00
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>>> tamper('SELECT FIELD FROM%20TABLE')
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'%53%45%4C%45%43%54%20%46%49%45%4C%44%20%46%52%4F%4D%20%54%41%42%4C%45'
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2011-02-06 23:25:55 +00:00
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"""
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2011-04-04 08:18:26 +00:00
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retVal = payload
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2011-02-06 23:25:55 +00:00
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2011-04-04 08:18:26 +00:00
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if payload:
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2011-02-06 23:25:55 +00:00
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retVal = ""
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i = 0
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2011-04-04 08:18:26 +00:00
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while i < len(payload):
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2013-01-10 13:18:44 +01:00
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if payload[i] == '%' and (i < len(payload) - 2) and payload[i + 1:i + 2] in string.hexdigits and payload[i + 2:i + 3] in string.hexdigits:
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retVal += payload[i:i + 3]
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2011-02-06 23:25:55 +00:00
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i += 3
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else:
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2012-07-24 01:21:32 +02:00
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retVal += '%%%.2X' % ord(payload[i])
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2011-02-06 23:25:55 +00:00
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i += 1
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2012-10-25 10:10:23 +02:00
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return retVal
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