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50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
#!/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 'LICENSE' for copying permission
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"""
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import re
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from lib.core.common import randomRange
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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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def tamper(payload, **kwargs):
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"""
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Add random comments to SQL keywords
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>>> import random
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>>> random.seed(0)
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>>> tamper('INSERT')
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'I/**/N/**/SERT'
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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"\b[A-Za-z_]+\b", payload):
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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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_ = word[0]
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for i in xrange(1, len(word) - 1):
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_ += "%s%s" % ("/**/" if randomRange(0, 1) else "", word[i])
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_ += word[-1]
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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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retVal = retVal.replace(word, _)
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return retVal
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