Privilege escalation in KDE KCron



Published: 2022-02-28
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-24986
CWE-ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
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KCron
Web applications / Modules and components for CMS

Vendor KDE.org

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU60903

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24986

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper temporary file handling when reading the existing crontab or saving the new one, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

KCron: 2.0.0 - 21.12.2

External links

http://apps.kde.org/kcron/
http://kde.org/info/security/advisory-20220216-1.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.



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