CyberRota Analysis
AI-GeneratedThe vulnerability affects Contrast's runtime for confidential containers on Kubernetes, specifically in versions up to 1.9.0, allowing untrusted hosts to write arbitrary file trees to specified mount points within confidential containers. This could compromise the integrity of critical application directories, posing a risk to application functionality. Organizations using Docker and Kubernetes with vulnerable Contrast deployments, particularly on bare-metal setups, should prioritize upgrading to version 1.9.1 to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Contrast, Edgeless Systems' runtime for confidential containers on Kubernetes, is affected in versions up to and including 1.9.0. The VOLUME directive in a Dockerfile (config.volumes in the OCI image configuration) is only a hint and is not handled specially by Kubernetes, but containerd adds a mount point for it when Kubernetes sets none, requiring the runtime to be able to push arbitrary data to the Kata agent. As a result, on bare-metal Contrast deployments (AKS deployments are not affected) that run an image declaring at least one VOLUME for which no Kubernetes mount exists at that path, the untrusted host can write arbitrary file trees below that mount point inside the confidential container, compromising the integrity of a directory that is typically important to the application's core functionality. Version 1.9.1 fixes the issue by disallowing this configuration in `contrast generate`.