acronis true_image_2020 特权管理不恰当

CVE编号

CVE-2020-9452

利用情况

暂无

补丁情况

N/A

披露时间

2021-05-25

漏洞描述

An issue was discovered in Acronis True Image 2020 24.5.22510. anti_ransomware_service.exe includes functionality to quarantine files by copying a suspected ransomware file from one directory to another using SYSTEM privileges. Because unprivileged users have write permissions in the quarantine folder, it is possible to control this privileged write with a hardlink. This means that an unprivileged user can write/overwrite arbitrary files in arbitrary folders. Escalating privileges to SYSTEM is trivial with arbitrary writes. While the quarantine feature is not enabled by default, it can be forced to copy the file to the quarantine by communicating with anti_ransomware_service.exe through its REST API.

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
https://danishcyberdefence.dk/blog
https://madsjoensen.dk/cve-2020-9452/
https://www.acronis.com

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	acronis	true_image_2020	24.5.22510	-

CVSS3评分 7.8

• 攻击路径 本地
• 攻击复杂度 低
• 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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-ID 漏洞类型 CWE-269 特权管理不恰当