Kubelet Seccomp Bypass via Empty Localhost Profile
CVE-2023-2431 Published on June 16, 2023
Bypass of seccomp profile enforcement
A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.
Vulnerability Analysis
CVE-2023-2431 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2023-2431. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Improper Validation of Specified Type of Input
The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.
Products Associated with CVE-2023-2431
stack.watch emails you whenever new vulnerabilities are published in Kubernetes or Fedora Project Fedora. Just hit a watch button to start following.
Affected Versions
Kubernetes:- Before v1.24.14 is affected.
- Version v1.25.0 and below v1.25.9 is affected.
- Version v1.26.0 and below v1.26.4 is affected.
- Version v1.27.0 and below v1.27.1 is affected.
Exploit Probability
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.