Incorrect Sysctls Validation Vulnerability in CRI-O by Red Hat
CVE-2022-0532

4.2MEDIUM

Key Information:

Vendor
Kubernetes
Status
Cri-o
Vendor
CVE Published:
9 February 2022

Summary

An incorrect validation of sysctls in CRI-O versions 1.18 and earlier allows an attacker to take advantage of unsafe sysctls in a cluster. If an attacker manages to create a pod with the hostIPC and hostNetwork kernel namespaces, they can apply the sysctls from a designated 'safe' list, leading to potential security breaches on the host system. This vulnerability emphasizes the need for rigorous security measures in Kubernetes environments.

Affected Version(s)

cri-o 1.18

References

https://bugzilla.redhat.com/show_bug.cgi?id=2051730
x_refsource_MISC
https://kubernetes.io/docs/tasks/administer-cluster/sysct...
x_refsource_MISC

CVSS V3.1

Score:
4.2
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.