Multiple vulnerabilities in Kubernetes



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-3955
CVE-2023-3676
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Kubernetes
Server applications / Frameworks for developing and running applications

Vendor Kubernetes

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU80008

Risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-3955

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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

Kubernetes: 1.0.0 - 1.28.0

CPE2.3 External links

https://seclists.org/oss-sec/2023/q3/126
https://github.com/kubernetes/kubernetes/issues/119595


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.

2) Input validation error

EUVDB-ID: #VU80006

Risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-3676

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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

Kubernetes: 1.0.0 - 1.28.0

CPE2.3 External links

https://seclists.org/oss-sec/2023/q3/124
https://github.com/kubernetes/kubernetes/issues/119339


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.



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