CVE-2024-23653: BuildKit interactive containers API does not validate entitlements check
First published: Wed Jan 31 2024(Updated: )
### Impact In addition to running containers as build steps, BuildKit also provides APIs for running interactive containers based on built images. It was possible to use these APIs to ask BuildKit to run a container with elevated privileges. Normally, running such containers is only allowed if special `security.insecure` entitlement is enabled both by buildkitd configuration and allowed by the user initializing the build request. ### Patches The issue has been fixed in v0.12.5 . ### Workarounds Avoid using BuildKit frontends from untrusted sources. A frontend image is usually specified as the `#syntax` line on your Dockerfile, or with `--frontend` flag when using `buildctl build` command. ### References
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/moby/buildkit | <0.12.5 | 0.12.5 |
| Mobyproject Buildkit | <0.12.5 |
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Reference Links
- https://github.com/moby/buildkit/security/advisories/GHSA-wr6v-9f75-vh2g
- https://github.com/moby/buildkit/pull/4602
- https://github.com/moby/buildkit/releases/tag/v0.12.5
- https://nvd.nist.gov/vuln/detail/CVE-2024-23653
- https://github.com/advisories/GHSA-wr6v-9f75-vh2g (Advisory)
- https://github.com/moby/buildkit/commit/5026d95aa3336e97cfe46e3764f52d08bac7a10e
- https://github.com/moby/buildkit/commit/92cc595cfb12891d4b3ae476e067c74250e4b71e
Frequently Asked Questions
What is the severity of CVE-2024-23653?
CVE-2024-23653 has a high severity due to the potential for running containers with elevated privileges.
How do I fix CVE-2024-23653?
To fix CVE-2024-23653, upgrade to BuildKit version 0.12.5 or later.
What are the affected versions of BuildKit for CVE-2024-23653?
Affected versions of BuildKit range up to but not including version 0.12.5.
What is the impact of CVE-2024-23653?
CVE-2024-23653 allows unauthorized access to run interactive containers with elevated privileges.
Is CVE-2024-23653 related to any specific software?
CVE-2024-23653 specifically affects Mobyproject BuildKit.
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