Vulnerability identifier: #VU80010

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3893

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CSI Proxy
Universal components / Libraries / Programming Languages & Components

Vendor: Kubernetes

Description

The vulnerability allows a remote user to escalate privileges on Windows nodes.

The vulnerability exists due to improper input validation. A remote user with ability to create pods on Windows nodes can obtain administrative privileges on these nodes.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CSI Proxy: 0.1.0 - 1.1.2

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External links
http://seclists.org/oss-sec/2023/q3/127
http://github.com/kubernetes/kubernetes/issues/119594

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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