nexus-repository-anonymous-access: Nexus Repository Manager - Anonymous Access Enabled

id: nexus-repository-anonymous-access

info:
  name: Nexus Repository Manager - Anonymous Access Enabled
  author: 0x_Akoko
  severity: medium
  description: |
    Detected Nexus Repository Manager instance with anonymous access enabled, allowing unauthenticated users to list and browse repositories containing private artifacts including source code, packages, and Docker images.
  reference:
    - https://help.sonatype.com/en/anonymous-access.html
    - https://help.sonatype.com/en/access-control.html
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 6.5
    cwe-id: CWE-276
  metadata:
    max-request: 1
    verified: true
    shodan-query: title:"Nexus Repository Manager"
    fofa-query: title="Nexus Repository Manager"
  tags: misconfig,nexus,sonatype,exposure,unauth

http:
  - method: GET
    path:
      - "{{BaseURL}}/service/rest/v1/repositories"

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains_all(body, "\"name\"", "\"format\"", "\"type\"")'
          - 'contains_any(body, "maven", "npm", "docker", "nuget", "pypi", "raw", "apt", "yum")'
        condition: and

    extractors:
      - type: json
        part: body
        json:
          - '.[].name'
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