medium

GKE Sandbox side channel attack

Published Tue, Mar 22nd, 2022
Platforms

Summary

There was a misconfiguration with Simultaneous Multi-Threading (SMT), also known as Hyper-threading, in GKE Sandbox images, causing nodes to be potentially exposed to side channel attacks such as Microarchitectural Data Sampling (MDS).

Affected Services

GKE Sandbox

Remediation

Upgrade nodes to versions 1.22.6-gke.1500 and later or 1.23.3-gke.1100 and later.

Tracked CVEs

No tracked CVEs

References

Contributed by https://github.com/ramimac
Disclosure Date
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Exploitablity Period
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Known ITW Exploitation
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Detection Methods
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Piercing Index Rating
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Discovered by
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