Security restrictions bypass in kpmcore - CVE-2020-27187
Published: October 18, 2020
Vulnerability identifier: #VU47699
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-27187
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: KDE.org
Affected software:
kpmcore
kpmcore
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a logic flaw within the kpmcore_externalcommand helper when the service that invokes dbus is not properly checked. A local user can replace /etc/fstab file, execute mount and other partitioning related commands while KDE Partition Manager is running, and gain root privileges on the system.
How to mitigate CVE-2020-27187
Install updates from vendor's website.