CVE-2023-28434

Known Exploited Public Exploit
MinIO is vulnerable to privilege escalation on Linux/MacOS

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`.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 33.71% Top 5%
KEV Since 
Vendor Advisory github.com
Affected: minio minio
Published at:
Updated at:

References

Link Tags
https://github.com/minio/minio/security/advisories/GHSA-2pxw-r47w-4p8c vendor advisory
https://github.com/minio/minio/pull/16849 issue tracking exploit
https://github.com/minio/minio/commit/67f4ba154a27a1b06e48bfabda38355a010dfca5 patch

Frequently Asked Questions

What is the severity of CVE-2023-28434?
CVE-2023-28434 has been scored as a high severity vulnerability.
How to fix CVE-2023-28434?
To fix CVE-2023-28434, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-28434 being actively exploited in the wild?
It is confirmed that CVE-2023-28434 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~34% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-28434?
CVE-2023-28434 affects minio minio.
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