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

id: CVE-2020-9490

info:
  name: Apache HTTP Server 2.4.20-2.4.43 - HTTP/2 Cache-Digest Denial of Service Attack
  author: philippedelteil
  severity: high
  description: Apache HTTP Server versions 2.4.20 to 2.4.43 are susceptible to a denial of service attack. 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.
  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
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 7.5
    cve-id: CVE-2020-9490
    cwe-id: CWE-444
  tags: cve,cve2020,apache,dos

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

    matchers:
      - type: regex
        regex:
          - "Apache/2\\.4\\.([3-3][0-9]|2[0-9]|4[0-3])"
        part: header

# Enhanced by mp on 2022/06/27
Added CVE-2020-9490 2021-05-07 13:54:44 +00:00			`id: CVE-2020-9490`

			`info:`
Enhancement: cves/2020/CVE-2020-9490.yaml by mp 2022-06-27 18:24:26 +00:00			`name: Apache HTTP Server 2.4.20-2.4.43 - HTTP/2 Cache-Digest Denial of Service Attack`
regex update 2021-05-17 16:12:41 +00:00			`author: philippedelteil`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`severity: high`
Enhancement: cves/2020/CVE-2020-9490.yaml by mp 2022-06-27 18:24:26 +00:00			`description: Apache HTTP Server versions 2.4.20 to 2.4.43 are susceptible to a denial of service attack. 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.`
Removed pipe (\|) character from references, because the structure requires it to be a string slice, not a string Related nuclei tickets: * #259 - dynamic key-value field support for template information * #940 - new infos in template * #834 * RES-84 2021-08-18 11:37:49 +00:00			`reference:`
Satisfying the linter (all errors and warnings) * whitespace modifications only 2021-08-19 14:44:46 +00:00			`- 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`
Added cve annotations + severity adjustments 2021-09-10 11:26:40 +00:00			`classification:`
			`cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`cvss-score: 7.5`
Added cve annotations + severity adjustments 2021-09-10 11:26:40 +00:00			`cve-id: CVE-2020-9490`
			`cwe-id: CWE-444`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`tags: cve,cve2020,apache,dos`
Added CVE-2020-9490 2021-05-07 13:54:44 +00:00
			`requests:`
			`- method: GET`
			`path:`
			`- "{{BaseURL}}"`

			`matchers:`
Shorter check 2021-05-16 13:12:59 +00:00			`- type: regex`
			`regex:`
regex update 2021-05-17 16:12:41 +00:00			`- "Apache/2\\.4\\.([3-3][0-9]\|2[0-9]\|4[0-3])"`
changed for testing locally, reverting it back 2021-05-17 16:15:53 +00:00			`part: header`
Enhancement: cves/2020/CVE-2020-9490.yaml by mp 2022-06-27 18:24:26 +00:00
			`# Enhanced by mp on 2022/06/27`