Kubernetes Windows Node Pod Escalation to Admin Privileges
CVE-2023-3955 Published on October 31, 2023

Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation
A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

NVD

Vulnerability Analysis

CVE-2023-3955 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.


Products Associated with CVE-2023-3955

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Kubernetes
 

Affected Versions

Kubernetes kubelet: kubernetes kubelet:

Exploit Probability

EPSS
0.76%
Percentile
73.04%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.