add ord2ascii tamper script (sqlmapproject#4992)

Changes occurrences of ORD() function to equivalent ASCII() ones.

Author: jeffbencteux

tamper/ord2ascii.py

@@ -0,0 +1,30 @@
+#!/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.LOWEST
+
+def dependencies():
+ pass
+
+def tamper(payload, **kwargs):
+ """
+ Replaces ORD() occurences with equivalent ASCII() calls 
+
+ >>> tamper("ORD('42')")
+ "ASCII('42')"
+ """
+
+ retVal = payload
+
+ if payload:
+ retVal = re.sub(r"(?i)\bORD\(\b", "ASCII(", payload)
+
+ return retVal