KSmserver in KDE Plasma Workspace (aka plasma-workspace) before 5.27.11.1 and 6.x before 6.0.5.1 allows connections via ICE based purely on the host, i.e., all local connections are accepted. This allows another user on the same machine to gain access to the session manager, e.g., use the session-restore feature to execute arbitrary code as the victim (on the next boot) via earlier use of the /tmp directory.
According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."
Link | Tags |
---|---|
https://invent.kde.org/plasma/plasma-workspace/ | product |
https://www.x.org/releases/X11R7.7/doc/libSM/xsmp.html | product |
https://github.com/KDE/plasma-workspace/tags | release notes |
https://kde.org/info/security/advisory-20240531-1.txt | vendor advisory |