Vulnerability identifier: #VU60453

Vulnerability 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-2021-4178

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Java client for Kubernetes & OpenShift
Client/Desktop applications / Software for system administration

Vendor: fabric8io

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when parsing YAML files. A local user can supply a specially crafted YAML file and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Java client for Kubernetes & OpenShift: 5.11.0 - 5.11.1, 5.10.0 - 5.10.2, 5.9.0, 5.8.0, 5.7.0 - 5.7.3, 5.6.0, 5.5.0, 5.4.0 - 5.4.1, 5.3.0 - 5.3.1, 5.2.0 - 5.2.1, 5.1.0 - 5.1.1, 5.0.0 - 5.0.2

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=2034388

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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.