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cve-2024-3094-detect-tool's Introduction

CVE-2024-3094(XZ后门)检测器

概览

该工具检查本地机器是否同时满足以下两个条件:易受CVE-2024-3094(SSH负载能够运行)的攻击,以及当前受CVE-2024-3094(已安装恶意版本的XZ)的影响。

只有两个条件都满足时,机器才可能受CVE-2024-3094的影响。

恶意XZ/LZMA检查

该工具检查机器上当前是否安装了恶意版本的xzliblzma。该检查是静态进行的,不需要运行xz二进制文件。

易受攻击的SSH检查

该工具检查当前安装的SSH服务器(sshd)是否链接到liblzma。不链接到lzma的SSH服务器不会受CVE-2024-3094的影响,因为后门永远不会激活。

要求

使用strings工具(binutils的一部分)

sudo apt install binutils

使用方法

./cve-2024-3094-detector.sh

该工具将检查上一节中提到的前提条件。

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