Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
init_tmp in TeeJee.FileSystem.vala in Timeshift before 20.03 unsafely reuses a preexisting temporary directory in the predictable location /tmp/timeshift. It follows symlinks in this location or uses directories owned by unprivileged users. Because Timeshift also executes scripts under this location, an attacker can attempt to win a race condition to replace scripts created by Timeshift with attacker-controlled scripts. Upon success, an attacker-controlled script is executed with full root privileges. This logic is practically always triggered when Timeshift runs regardless of the command-line arguments used.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Timeshift 后置链接漏洞
Vulnerability Description
Timeshift是一款Linux系统还原工具。该产品支持创建文件系统快照，并提供快照恢复等功能。 Timeshift 20.03之前版本中存在后置链接漏洞，该漏洞源于TeeJee.FileSystem.vala文件的‘init_tmp’函数在可预测的/tmp/timeshift位置重用了之前存在的临时路径。攻击者可利用该漏洞以root权限执行其控制的脚本。
CVSS Information
N/A
Vulnerability Type
N/A