mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-21 17:16:35 +03:00
51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
#!/usr/bin/env python
|
|
|
|
"""
|
|
Copyright (c) 2006-2024 sqlmap developers (https://sqlmap.org/)
|
|
See the file 'LICENSE' for copying permission
|
|
"""
|
|
|
|
import random
|
|
import re
|
|
|
|
from lib.core.data import kb
|
|
from lib.core.datatype import OrderedSet
|
|
from lib.core.enums import PRIORITY
|
|
|
|
__priority__ = PRIORITY.NORMAL
|
|
|
|
def dependencies():
|
|
pass
|
|
|
|
def tamper(payload, **kwargs):
|
|
"""
|
|
Adds multiple spaces (' ') around SQL keywords
|
|
|
|
Notes:
|
|
* Useful to bypass very weak and bespoke web application firewalls
|
|
that has poorly written permissive regular expressions
|
|
|
|
Reference: https://www.owasp.org/images/7/74/Advanced_SQL_Injection.ppt
|
|
|
|
>>> random.seed(0)
|
|
>>> tamper('1 UNION SELECT foobar')
|
|
'1 UNION SELECT foobar'
|
|
"""
|
|
|
|
retVal = payload
|
|
|
|
if payload:
|
|
words = OrderedSet()
|
|
|
|
for match in re.finditer(r"\b[A-Za-z_]+\b", payload):
|
|
word = match.group()
|
|
|
|
if word.upper() in kb.keywords:
|
|
words.add(word)
|
|
|
|
for word in words:
|
|
retVal = re.sub(r"(?<=\W)%s(?=[^A-Za-z_(]|\Z)" % word, "%s%s%s" % (' ' * random.randint(1, 4), word, ' ' * random.randint(1, 4)), retVal)
|
|
retVal = re.sub(r"(?<=\W)%s(?=[(])" % word, "%s%s" % (' ' * random.randint(1, 4), word), retVal)
|
|
|
|
return retVal
|