CVE-2023-28434: MinIO Security Feature Bypass Vulnerability

MinIO contains a security feature bypass vulnerability that allows an attacker to use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket` to conduct privilege escalation. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Sep 19, 2023 · high severity · unattributed attribution