CVE-2023-28434
MinIO Security Feature Bypass Vulnerability
CVSS
—
No CVSS
EPSS
7.9%
p95
KEV
YES
Sep 19, 2023
Exploit Today
78
0-100
Published: — · Last modified: —
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