> 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/active-directory/kerberos/as-rep-roasting.md).

# AS-REP Roasting

### 原理

**AS-REP 烤票** 是一种针对配置了以下选项的 Active Directory 帐户的技术：

```bash
不要求 Kerberos 预身份验证
```

响应包含使用从用户密码派生的密钥加密的数据。

然后可以使用 John the Ripper 或 Hashcat 之类的工具对这些数据进行离线攻击。

### 简化示意图

{% code overflow="wrap" %}

```bash
攻击者
   │
   ├── 向 KDC 发送 AS-REQ
   │
   └── 使用从用户密码派生的密钥加密的 AS-REP
                    │
                    └── 离线破解
```

{% endcode %}

### 为什么它很危险

这种攻击很危险，因为：

* 它不一定需要有效凭据；
* 它可以远程针对 KDC 执行；
* 破解是在离线状态下进行的；
* 它在很大程度上取决于用户密码的强度。


---

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