CVE-2023-28432
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.
Summary dbcve.org
In MinIO cluster deployments from RELEASE.2019-12-17T23-16-33Z through RELEASE.2023-03-20T20-16-18Z, the /minio/v2/info/credentials endpoint (or similar diagnostic endpoints) returns all environment variables including the sensitive MINIO_SECRET_KEY and MINIO_ROOT_PASSWORD, exposing credentials to anyone with API access.
Mitigation
Upgrade MinIO to RELEASE.2023-03-20T20-16-18Z or later. If immediate upgrade is not possible, restrict network access to MinIO endpoints and rotate any exposed credentials immediately.