CVE-2023-25812: Allowed DELETE on resources on object locked buckets under Governance mode in Minio

Vulnerability summary

CVE-2023-25812 is a high (CVSS 8.8) Improper Preservation of Permissions vulnerability in minio. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 61% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 21-02-2023
   PublishedVulnerability first disclosed.
2. 10-03-2025
   Last modifiedVulnerability information updated.

Description

Minio is a Multi-Cloud Object Storage framework. Affected versions do not correctly honor a `Deny` policy on ByPassGoverance. Ideally, minio should return "Access Denied" to all users attempting to DELETE a versionId with the special header `X-Amz-Bypass-Governance-Retention: true`. However, this was not honored instead the request will be honored and an object under governance would be incorrectly deleted. All users are advised to upgrade. There are no known workarounds for this issue.

• CWE-281Improper Preservation of PermissionsThe product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.