DIVD-2023-00037 - Security Feature Bypass in MinIO

Our reference DIVD-2023-00037
Case lead Alwin Warringa
Author Max van der Horst
Researcher(s)
CVE(s)
Products
  • MinIO Storage System
Versions
  • All versions before RELEASE.2023-03-20T20-16-18Z
Recommendation Upgrade by installing the issued patch as soon as possible or apply the mentioned workaround.
Patch status patches available
Workaround Enable Browser API Access and disable 'MINIO_BROWSER'
Status Closed
Last modified 10 Apr 2024 21:52

Summary

Prior to MinIO version RELEASE.2023-03-020T20-16-18Z, 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.

Recommendations

Install the patched version of RELEASE.2023-03-20T20-16-18Z or apply the workaround by enabling browser API access and turning off MINIO_BROWSER.

What we are doing

DIVD is scanning for vulnerable systems. Owners of such systems will receive a notification with this casefile and remediation steps.

Timeline

Date Description
26 Sep 2023 DIVD starts scanning for this vulnerability.
26 Sep 2023 First version of this casefile.
30 Nov 2023 Case closed because finding a good fingerprint method failed
gantt title DIVD-2023-00037 - Security Feature Bypass in MinIO dateFormat YYYY-MM-DD axisFormat %e %b %Y section Case DIVD-2023-00037 - Security Feature Bypass in MinIO (still open) :2023-09-26, 2024-05-02 section Events DIVD starts scanning for this vulnerability. : milestone, 2023-09-26, 0d First version of this casefile. : milestone, 2023-09-26, 0d Case closed because finding a good fingerprint method failed : milestone, 2023-11-30, 0d

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