SB2023042403 - Information disclosure in MinIO
Published: April 24, 2023 Updated: December 6, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2023-28432)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker can gain unauthorized access to sensitive information on the system, including "MINIO_SECRET_KEY" and "MINIO_ROOT_PASSWORD".
2) Improper access control (CVE-ID: CVE-2023-28434)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Green
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote user with "arn:aws:s3:::*" permission and enabled Console API access can bypass metadata bucket name checking and put an object into any bucket while processing "PostPolicyBucket".
Remediation
Install update from vendor's website.
References
- https://github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q
- https://github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z
- https://www.greynoise.io/blog/openai-minio-and-why-you-should-always-use-docker-cli-scan-to-keep-your-supply-chain-clean
- https://twitter.com/Andrew___Morris/status/1639325397241278464
- https://viz.greynoise.io/tag/minio-information-disclosure-attempt
- https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c
- https://github.com/minio/minio/pull/16849
- https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5