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 re
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from lib.core.common import randomRange
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2019-03-28 16:04:38 +01:00
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from lib.core.compat import xrange
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2011-02-06 23:25:55 +00:00
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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.LOW
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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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2025-02-19 14:11:03 +01:00
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Inserts random inline comments within SQL keywords (e.g. SELECT -> S/**/E/**/LECT)
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2013-03-13 21:57:09 +01:00
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>>> import random
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>>> random.seed(0)
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>>> tamper('INSERT')
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2019-05-03 13:20:15 +02:00
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'I/**/NS/**/ERT'
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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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2013-07-31 09:52:10 +02:00
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for match in re.finditer(r"\b[A-Za-z_]+\b", payload):
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2011-02-06 23:25:55 +00:00
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word = match.group()
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if len(word) < 2:
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continue
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if word.upper() in kb.keywords:
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2012-07-24 01:21:32 +02:00
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_ = word[0]
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2011-02-06 23:25:55 +00:00
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for i in xrange(1, len(word) - 1):
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2012-07-24 01:21:32 +02:00
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_ += "%s%s" % ("/**/" if randomRange(0, 1) else "", word[i])
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2011-02-06 23:25:55 +00:00
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2012-07-24 01:21:32 +02:00
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_ += word[-1]
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2013-07-31 09:52:10 +02:00
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if "/**/" not in _:
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index = randomRange(1, len(word) - 1)
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_ = word[:index] + "/**/" + word[index:]
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2012-07-24 01:21:32 +02:00
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retVal = retVal.replace(word, _)
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2011-02-06 23:25:55 +00:00
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2012-10-25 10:10:23 +02:00
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return retVal
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