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XZ-Utils工具库恶意后门植入漏洞(CVE-2024-3094)

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漏洞概述

XZ是一种数据压缩格式,几乎存在每个Linux发行版中。liblzma是一个处理XZ压缩格式的开源软件库。3月29日开发人员发现XZ包的供应链攻击,溯源发现SSH上游liblzma库被植入后门木马,当满足一定条件时,会解密流量里的C2命令执行。

  • 漏洞编号: CVE-2024-3094
  • CVSS 3.1评分:10.0
  • 威胁类型:供应链攻击、后门
  • POC状态:已公开
  • EXP状态:已公开

影响版本

  • xz == 5.6.0、5.6.1
  • liblzma == 5.6.0、5.6.1
OS Package name Package version(s) Fix package version Reference
Fedora 40, Rawhide xz 5.6.0, 5.6.1 Revert to 5.4.x Details
Debian unstable (Sid) xz-utils 5.6.1 Revert to 5.4.5 Details
Alpine edge xz 5.6.1-r2 Revert to 5.4.x Details
Arch Linux xz 5.6.0-1, 5.6.1-1 Upgrade to 5.6.1-2 Details
openSUSE Tumbleweed openSUSE MicroOS xz 5.6.0 Revert to 5.4.x Details

自查脚本

💡 XZ-Utils-POC.sh

image-20240401095227113

修复建议

目前暂无最新版本,需要对XZ版本进行降级到5.4.x

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