mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-23 01:56:36 +03:00
72 lines
1.9 KiB
Python
72 lines
1.9 KiB
Python
#!/usr/bin/env python
|
|
|
|
"""
|
|
Copyright (c) 2006-2019 sqlmap developers (http://sqlmap.org/)
|
|
See the file 'LICENSE' for copying permission
|
|
"""
|
|
|
|
import os
|
|
import random
|
|
|
|
from lib.core.common import singleTimeWarnMessage
|
|
from lib.core.enums import DBMS
|
|
from lib.core.enums import PRIORITY
|
|
|
|
__priority__ = PRIORITY.LOW
|
|
|
|
def dependencies():
|
|
singleTimeWarnMessage("tamper script '%s' is only meant to be run against %s" % (os.path.basename(__file__).split(".")[0], DBMS.MYSQL))
|
|
|
|
def tamper(payload, **kwargs):
|
|
"""
|
|
Replaces (MySQL) instances of space character (' ') with a random blank character from a valid set of alternate characters
|
|
|
|
Requirement:
|
|
* MySQL
|
|
|
|
Tested against:
|
|
* MySQL 5.1
|
|
|
|
Notes:
|
|
* Useful to bypass several web application firewalls
|
|
|
|
>>> random.seed(0)
|
|
>>> tamper('SELECT id FROM users')
|
|
'SELECT%A0id%0BFROM%0Cusers'
|
|
"""
|
|
|
|
# ASCII table:
|
|
# TAB 09 horizontal TAB
|
|
# LF 0A new line
|
|
# FF 0C new page
|
|
# CR 0D carriage return
|
|
# VT 0B vertical TAB (MySQL and Microsoft SQL Server only)
|
|
# A0 non-breaking space
|
|
blanks = ('%09', '%0A', '%0C', '%0D', '%0B', '%A0')
|
|
retVal = payload
|
|
|
|
if payload:
|
|
retVal = ""
|
|
quote, doublequote, firstspace = False, False, False
|
|
|
|
for i in xrange(len(payload)):
|
|
if not firstspace:
|
|
if payload[i].isspace():
|
|
firstspace = True
|
|
retVal += random.choice(blanks)
|
|
continue
|
|
|
|
elif payload[i] == '\'':
|
|
quote = not quote
|
|
|
|
elif payload[i] == '"':
|
|
doublequote = not doublequote
|
|
|
|
elif payload[i] == " " and not doublequote and not quote:
|
|
retVal += random.choice(blanks)
|
|
continue
|
|
|
|
retVal += payload[i]
|
|
|
|
return retVal
|