Vulnerability identifier: #VU47699

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27187

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
kpmcore
/

Vendor: KDE.org

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

kpmcore: 4.1.0

---

External links
http://kde.org/info/security/advisory-20201017-1.txt

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.