> 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/cors/cors-with-trusted-insecure-protocols.md).
# 信任不安全协议的 CORS
信任不安全协议的 CORS 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。
### 存在受信任不安全协议的 CORS 漏洞
该网站存在有漏洞的 CORS 配置：它信任所有 **子域**，即使使用 **HTTP**。目标是通过 CORS 获取管理员的 API 密钥，并将其外带到攻击服务器。
提供的凭据： `wiener:peter`.该网站存在有漏洞的 CORS 配置：它信任所有 **子域**，即使使用 **HTTP**。目标是通过 CORS 获取管理员的 API 密钥，并将其外带到攻击服务器。
提供的凭据： `wiener:peter`.
#### 观察
* 根域被接受于 **HTTP**:
{% code overflow="wrap" %}
```html
Origin: http://0a550036047e216980caa86b00fb0073.web-security-academy.net
```
{% endcode %}
**子域** 中使用 HTTP 的也同样被接受：
{% code overflow="wrap" %}
```
Origin: http://jord4n.0a550036047e216980caa86b00fb0073.web-security-academy.net
```
{% endcode %}
通过 stockcheck 识别出的子域：
{% code overflow="wrap" %}
```html
https://stock.0a550036047e216980caa86b00fb0073.web-security-academy.net/?productId=1&storeId=1
```
{% endcode %}
该商品会反映 `productId` → \*\*HTML/JS\*\* 注入可能：
```html
?productId=test&storeId=1
```
```html
?productId=
hello
&storeId=1
?productId=&storeId=1
```
#### 利用：读取 `/accountDetails` 并外带
使用的 XHR 脚本（通过子域发送）：
```javascript
```
将脚本注入到 `productId` 漏洞子域的参数中：
```javascript
https://stock.0a550036047e216980caa86b00fb0073.web-security-academy.net/?productId=&storeId=1
```
重定向到该 URL 进行利用，并将 `apiKey` 变量中包含编码后的响应。
#### 发送给受害者的有效载荷（URL 编码版本）
```javascript
```
* 在服务器上接收 API 密钥，并通过 `apiKey` 参数利用。
* 使用以下方式解码：
```bash
echo -n "ewogICJ1c2VybmFtZSI6ICJhZG1pbmlzdHJhdG9yIiwKICAiZW1haWwiOiAiIiwKICAiYXBpa2V5IjogIllUY0ViOFFLb3F1SE90MTJ4bGt1M1ZoYTlFNk0wbDJIIiwKICAic2Vzc2lvbnMiOiBbCiAgICAiZ25yTGM2UDVEb01uQmxyUTczQ3l6SldBUnJzTXJpYlciCiAgXQp9" | base64 -d
```
---
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