How serious is CVE-2023-28434?

This vulnerability has a CVSS score of 8.8 out of 10, classified as HIGH severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2023-28434?

Yes, proof-of-concept exploit code for CVE-2023-28434 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2023-28434?

CVE-2023-28434 affects minio minio. Check the full CVE details for specific version information.

How do I fix CVE-2023-28434?

To remediate CVE-2023-28434, check for security patches from minio. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2023-28434

High

|8.8

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker with specific permissions to bypass security checks and upload files to any bucket in Minio, potentially leading to unauthorized data exposure. To exploit this, the attacker needs valid credentials that allow broad access and must have Console API access enabled.

Technical 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`.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeUnchanged

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$4,789($1K-$5K)

Vendor Response

Grade FPatched in 1071 days

Quick Information

Published

Mar 22, 2023

about 3 years ago

Last Modified

Feb 26, 2026

about 1 month ago

Vendor

minio

Product

minio