MinIO Information Disclosure Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-04-21
• EPSS: 84% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

Minio is a Multi-Cloud Object Storage framework. In a cluster deployment starting with RELEASE.2019-12-17T23-16-33Z and prior to RELEASE.2023-03-20T20-16-18Z, MinIO returns all environment variables, including `MINIO_SECRET_KEY` and `MINIO_ROOT_PASSWORD`, resulting in information disclosure. All users of distributed deployment are impacted. All users are advised to upgrade to RELEASE.2023-03-20T20-16-18Z.

CISA: MinIO contains a vulnerability in a cluster deployment where MinIO returns all environment variables, which allows for information disclosure.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 12 May 2023): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18ZRelease Notes
• github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3qExploitVendor Advisory
• twitter.com/Andrew___Morris/status/1639325397241278464Third Party Advisory
• viz.greynoise.io/tag/minio-information-disclosure-attemptThird Party Advisory
• www.greynoise.io/blog/openai-minio-and-why-you-should-always-use-docker-cli-scan-to-kee…Third Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource