Apache MINA SSHD information disclosure vulnerability

中 4.3CVE-2023-35887 · GHSA-mjmq-gwgm-5qhm · 10/07/2023 公開 · 17/06/2026 更新

要点

CVE-2023-35887 は org.apache.sshd:sshd-common, org.apache.sshd:sshd-core, org.apache.sshd:sshd-sftp に影響する深刻度「中」 (CVSS 4.3) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.3%（全脆弱性の 70.7% より高い）。
対処：2.9.3, 2.1.0 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
org.apache.sshd:sshd-common Maven	`≥ 2.1.0, < 2.9.3`	`2.9.3`
org.apache.sshd:sshd-core Maven	`≥ 1.0.0, < 2.1.0`	`2.1.0`
org.apache.sshd:sshd-sftp Maven	`≥ 1.0.0, < 2.9.3`	`2.9.3`
sshd apache	`≥ 1.0.0, < 2.9.3`	`2.9.3`

概要

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache MINA.

In SFTP servers implemented using Apache MINA SSHD that use a RootedFileSystem, logged users may be able to discover "exists/does not exist" information about items outside the rooted tree via paths including parent navigation ("..") beyond the root, or involving symlinks.

This issue affects Apache MINA: from 1.0 before 2.9.3 Users are recommended to upgrade to 2.9.3

Until version 2.1.0, some of the code affected by this vulnerability appeared in org.apache.sshd:sshd-core. Version 2.1.0 contains a commit where the code was moved to the package org.apache.sshd:sshd-common, which did not exist until version 2.1.0.

NVD の説明

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache MINA. In SFTP servers implemented using Apache MINA SSHD that use a RootedFileSystem, logged users may be able to discover "exists/does not exist" information about items outside the rooted tree via paths including parent navigation ("..") beyond the root, or involving symlinks. This issue affects Apache MINA: from 1.0 before 2.10. Users are recommended to upgrade to 2.10