nuclei-templates/cves/2020/CVE-2020-9490.yaml

id: CVE-2020-9490

info:
  name: CVE-2020-9490 Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.
  author: philippedelteil
  severity: medium
  description: Detects apache versions 2.4.43, 2.4.39, 2.4.38, 2.4.37, 2.4.35, 2.4.34, 2.4.33, 2.4.30, 2.4.29, 2.4.28, 2.4.27, 2.4.26, 2.4.25, 2.4.23, 2.4.20 that are POTENTIALLY vulnerable to CVE-2020-9490
  tags: cve,cve2020,apache,dos
  reference: |
        - https://httpd.apache.org/security/vulnerabilities_24.html
        - https://bugs.chromium.org/p/project-zero/issues/detail?id=2030
        - https://bugs.chromium.org/p/project-zero/issues/attachmentText?aid=443369
        - https://nvd.nist.gov/vuln/detail/CVE-2020-9490

requests:
  - method: GET
    path:
      - "{{BaseURL}}"

    matchers:
      - type: regex
        regex:
          - "Apache/2\.4\.(2[0356789]|3[0345789]|43)$"
        part: header