CVE编号
CVE-2021-42835利用情况
暂无补丁情况
N/A披露时间
2021-12-08漏洞描述
An issue was discovered in Plex Media Server through 1.24.4.5081-e362dc1ee. An attacker (with a foothold in a endpoint via a low-privileged user account) can access the exposed RPC service of the update service component. This RPC functionality allows the attacker to interact with the RPC functionality and execute code from a path of his choice (local, or remote via SMB) because of a TOCTOU race condition. This code execution is in the context of the Plex update service (which runs as SYSTEM).解决建议
建议您更新当前系统或软件至最新版,完成漏洞的修复。
参考链接 |
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https://bugsec.com/experts_teams/ | |
https://forums.plex.tv/t/security-regarding-cve-2021-42835/761510 | |
https://ir-on.io/2021/12/02/local-privilege-plexcalation/ | |
https://www.plex.tv/media-server-downloads/ |
受影响软件情况
# | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
1 | |||||||||
---|---|---|---|---|---|---|---|---|---|
运行在以下环境 | |||||||||
应用 | plex | media_server | * |
Up to (excluding) 1.25.0.5282 |
- 攻击路径 本地
- 攻击复杂度 高
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
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