> 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/business-logic.md).
# ビジネスロジック
ビジネスロジックの欠陥、ワークフローバイパス、クライアントサイドの信頼悪用、一貫性のない制御、アプリケーションロジックの悪用。
PortSwigger Web Security Academy のラボ向けビジネスロジックのノート。実践的なテスト手順、Burp Suite による検証、ペイロードの挙動、エクスプロイトのワークフローに焦点を当てています。
## テスト手順
1. 脆弱な機能と、関連するリクエスト、パラメータ、ヘッダー、Cookie、またはブラウザー側の Sink を特定します。
2. 攻撃を拡大する前に、最小限のペイロードで Burp Suite 上で挙動を再現します。
3. アカウントアクセス、データ漏えい、コード実行、SSRF、または状態変更など、明確な PoC で影響を確認します。
4. 侵入の経路を文書化しながら、ペイロード、URL、トークン、ラボの認証情報は変更しないでください。
## ラボ
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