CVE-2020-27187 Information

Description

An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. An attacker on the local machine can replace /etc/fstab and execute mount and other partitioning related commands while KDE Partition Manager is running. the mount command can then be used to gain full root privileges.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1890199 https://github.com/KDE/partitionmanager/compare/v4.1.0…v4.2.0 https://kde.org/info/security/advisory-20201017-1.txt https://security.gentoo.org/glsa/202011-03

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8