PT-2018-9394 · Kubernetes · Kubernetes Cri-O

Published 2018-05-18 · Updated 2019-10-03 · CVE-2018-1000400

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Kubernetes CRI-O versions prior to 1.9

Description The issue is related to a Privilege Context Switching Error in the handling of ambient capabilities, which can result in containers running with elevated privileges. This allows users to have abilities they should not have. The attack is exploitable via container execution.

Recommendations For versions prior to 1.9, update to version 1.9 or later to resolve the issue. As a temporary workaround, consider restricting the execution of containers to minimize the risk of exploitation.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2018-1000400

Affected Products

Kubernetes Cri-O

References · 4

• https://github.com/kubernetes-incubator/cri-o/pull/1558/files · Patch
• https://osv.dev/vulnerability/CVE-2018-1000400 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-1000400 · Security Note
• http://securityfocus.com/bid/104262 · Note