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49 lines
1.1 KiB
Python
49 lines
1.1 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2026 sqlmap developers (https://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.data import kb
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from lib.core.enums import PRIORITY
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__priority__ = PRIORITY.NORMAL
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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 each keyword character with upper case value (e.g. select -> SELECT)
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Tested against:
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* MySQL 8.4.9
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* MariaDB 11.8.8
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* PostgreSQL 16.11
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* SQLite 3.45.1
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* Microsoft SQL Server 2022
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* Oracle 23ai
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Notes:
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* Useful to bypass very weak and bespoke web application firewalls
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that has poorly written permissive regular expressions
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* Keyword case is insignificant on every engine listed above
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>>> tamper('insert')
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'INSERT'
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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"[A-Za-z_]+", retVal):
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word = match.group()
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if word.upper() in kb.keywords:
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retVal = retVal.replace(word, word.upper())
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return retVal
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