RCE in Kubernetes Cri-O
CVE-2022-0811
A flaw was found in CRI-O in the way it set kernel options for a pod. This issue allows anyone with rights to deploy a pod on a Kubernetes cluster that uses the CRI-O runtime to achieve a container escape and arbitrary code execution as root on the cluster node, where the malicious pod was deployed.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.190 (97.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.190 · newest: 0.190 · change: 0.000
Affected products
- Kubernetes Cri-O
- Cri-O — versions cri-o 1.24.0, cri-o 1.23.2, cri-o 1.22.3, cri-o 1.21.6, cri-o 1.20.7, cri-o 1.19.6
Weakness classification (CWE)
Public proof-of-concept exploits
- spiarh/webhook-cve-2022-0811
- 43622283/awesome-cloud-native-security
- ARPSyndicate/cvemon
- Ahmed-U-Github/500-k8-prod-issue
- Aimona/k8s-500-prod-issues
- Aleemohammed/500K8S-Scenarios
- Balaram-kishore/K8s-senarios---realtime
- Deep2631/500-Prod-realtime-kubernetes-issues
- LouisLiuNova/container-escape-exploits
- Metarget/awesome-cloud-native-security
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/cri-o/cri-o/security/advisories/GHSA-6x2m-w449-qwx7 (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-0811?
- CVE-2022-0811 is a high-severity vulnerability in Kubernetes Cri-O, classified under Code Injection. CVSS score: 8.8/10. Published 2022-03-16.
- How severe is CVE-2022-0811?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-0811 known to be exploited?
- 53 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.