CVE-2023-28434 KEV
8.8
HIGH · CVSS 3.1 · EPSS 7.9% (pctl 95)
Patch first
On CISA KEV — known exploited in the wild, due 2023-10-10.
Description
Minio is a Multi-Cloud Object Storage framework. Prior to RELEASE.2023-03-20T20-16-18Z, an attacker can use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket`. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. This issue has been patched in RELEASE.2023-03-20T20-16-18Z. As a workaround, enable browser API access and turn off `MINIO_BROWSER=off`.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 7.92% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-269 |
| On CISA KEV | yes — remediate by 2023-10-10 |
| Public exploit | none known |
| Published | 2023-03-22 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | MinIO Security Feature Bypass Vulnerability |
|---|---|
| Added | 2023-09-19 |
| Due | 2023-10-10 |
| Vendor / product | MinIO / MinIO |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| minio | minio |
References
- https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5
- https://github.com/minio/minio/pull/16849
- https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c
- https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5
- https://github.com/minio/minio/pull/16849
- https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28434
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