| タイトル | cym1102 nginxWebUI 4.4.2 Code Injection |
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| 説明 | An issue was discovered in nginxWebUI 4.4.2. The `/adminPage/main/autoUpdate` endpoint accepts a user-controllable `url` parameter and downloads a JAR package from that location without validating the source. The downloaded file is then executed by the application using `java -jar`, which leads to remote code execution on the server.
The vulnerable code path is `MainController.autoUpdate`, which calls `HttpUtil.downloadFile(...)` to fetch the provided URL and then passes the downloaded file to `UpdateUtils.run(...)`. The endpoint is reachable by an authenticated administrator session and also via the application’s token/creditKey mechanism. An attacker who can influence the `url` parameter can force the server to fetch and execute an attacker-controlled JAR, causing arbitrary Java code execution as the application user.
The root cause is the combination of arbitrary URL fetch, lack of source validation or signature checks, and direct execution of the downloaded package. |
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| ソース | ⚠️ https://github.com/cym1102/nginxWebUI/issues/213 |
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| ユーザー | lem0n817 (UID 84709) |
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| 送信 | 2026年08月02日 16:29 (1 月 ago) |
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| モデレーション | 2026年09月12日 18:44 (1 month later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 403166 [cym1102 nginxWebUI 迄 4.4.2 autoUpdate MainController.autoUpdate url 特権昇格] |
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| ポイント | 20 |
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