> 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/authentication/password-brute-force-via-password-change.md).
# 通过密码修改功能进行密码暴力破解
通过密码修改功能进行密码暴力破解，PortSwigger Web Security Academy 实验笔记，包括利用流程、载荷测试、Burp Suite 验证以及修复上下文
### 通过修改密码进行密码暴力破解
本实验展示了以下功能中的一个漏洞： **修改密码**，从而使得可以通过 **暴力破解**。/ 目标是识别以下用户的密码： **Carlos**，然后访问其页面 \*\*
**提供的凭据：**
* 用户： `wiener`
* 密码： `peter`
**目标用户：**
* `carlos`
有一个部分允许您在身份验证后修改密码。/ 当输入错误的 **当前密码** 信息时，应用程序会返回特定的错误消息。
应用程序发送的请求示例：
{% code overflow="wrap" %}
```bash
username=wiener¤t-password=test&new-password-1=test1234&new-password-2=test123
```
{% endcode %}
如果 `current-password` 字段无效，显示的错误表明当前密码不正确。
当替换 `wiener` 替换为 `carlos` 查询中的 **错误消息保持不变**，只要测试的密码不是正确的。配置一个 Burp Intruder 攻击
但是，对于 **正确的密码**，错误消息会发生变化：/ 应用程序不再显示错误密码，而是指出 **身份信息不匹配**.
这种响应差异使我们能够 **区分有效密码和无效密码**.
---
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