CVE-2023-28434

Product

MinIO / MinIO

Vulnerability

MinIO Security Feature Bypass Vulnerability

Added to KEV

Sep 19, 2023

Remediate by

Oct 10, 2023

Known ransomware use

No

Summary description

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.

Notes

https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c; https://nvd.nist.gov/vuln/detail/CVE-2023-28434