Privilege escalation in Kubernetes Cri-O
CVE-2018-1000400
Kubernetes CRI-O version prior to 1.9 contains a Privilege Context Switching Error (CWE-270) vulnerability in the handling of ambient capabilities that can result in containers running with elevated privileges, allowing users abilities they should not have. This attack appears to be exploitable via container execution. This vulnerability appears to have been fixed in 1.9.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/kubernetes-incubator/cri-o/pull/1558/files (Patch, Third Party Advisory)
- www.securityfocus.com/bid/104262 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-1000400?
- CVE-2018-1000400 is a high-severity vulnerability in Kubernetes Cri-O, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2018-05-18.
- How severe is CVE-2018-1000400?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-1000400 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.