CVE-2021-41137

Bypassing policy restrictions on regular users

Description

Minio is a Kubernetes native application for cloud storage. All users on release `RELEASE.2021-10-10T16-53-30Z` are affected by a vulnerability that involves bypassing policy restrictions on regular users. Normally, checkKeyValid() should return owner true for rootCreds. In the affected version, policy restriction did not work properly for users who did not have service (svc) or security token service (STS) accounts. This issue is fixed in `RELEASE.2021-10-13T00-23-17Z`. A downgrade back to release `RELEASE.2021-10-08T23-58-24Z` is available as a workaround.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: minio minio
Published at:
Updated at:

References

Link Tags
https://github.com/minio/minio/security/advisories/GHSA-v64v-g97p-577c third party advisory
https://github.com/minio/minio/pull/13388 third party advisory patch
https://github.com/minio/minio/pull/13422 third party advisory patch
https://github.com/minio/minio/commit/415bbc74aacd53a120e54a663e941b1809982dbd third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-41137?
CVE-2021-41137 has been scored as a high severity vulnerability.
How to fix CVE-2021-41137?
To fix CVE-2021-41137, 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-2021-41137 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-41137 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-41137?
CVE-2021-41137 affects minio minio.
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