CVE-2020-2023: low-severity vulnerability in Kata Containers
Kata Containers - Containers have access to the guest root filesystem device
Published · Updated
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8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.8epss 1.1%
Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
Affected products
Kata Containers · Kata ContainersRelated CVEs — Kata Containers
In the same product, most dangerous first.
CVE-2020-2026HIGHKata Containers - Guests can trick the kata-runtime into mounting the container image on any host pathEPSS 0.5%CVE-2020-2024MEDIUMKata Containers - Guests can trick the kata-runtime into unmounting any mount point on the hostEPSS 0.4%CVE-2020-2025HIGHKata Containers - Cloud Hypervisor guests persist filesystem changes to the underlying host image fileEPSS 0.3%
References
https://github.com/kata-containers/agent/issues/791https://github.com/kata-containers/agent/pull/792https://github.com/kata-containers/runtime/issues/2488https://github.com/kata-containers/runtime/pull/2477https://github.com/kata-containers/runtime/pull/2487https://github.com/kata-containers/runtime/releases/tag/1.10.5https://github.com/kata-containers/runtime/releases/tag/1.11.1