Path Traversal in Kubernetes
CVE-2022-3162
Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group without authorization. Clusters are impacted by this vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The same users are not authorized to read another custom resource in the same API group.
EPSS: 0.012 (64.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Kubernetes — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jordan@liggitt.net (Mailing List, Vendor Advisory)
- jordan@liggitt.net (Issue Tracking, Vendor Advisory)
- jordan@liggitt.net
Frequently asked questions
- What is CVE-2022-3162?
- CVE-2022-3162 is a medium-severity vulnerability in Kubernetes, classified under Relative Path Traversal. CVSS score: 6.5/10. Published 2023-03-01.
- How severe is CVE-2022-3162?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2022-3162 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.