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MinIO Admin API security issue

High severity Unreviewed Published Apr 23, 2020 in minio/minio • Updated Feb 1, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

During an internal security audit, we detected an authentication bypass issue in the MinIO admin API. The security issue has been reported internally. We have not observed this exploit in the wild or reported elsewhere in the community at large. All users are advised to upgrade ASAP.

Impact

Given an admin access key, it is possible to perform admin API operations i.e. creating new service accounts for existing access keys without knowing the admin secret key. This security issue was found during a regular internal security audit.

Patches

This issue was fixed by @vadmeste in PR minio/minio#9422

Binary Download

Please download the latest server binary that contains the fix from

Platform Architecture URL
Apple macOS 64-bit Intel https://dl.min.io/server/minio/release/darwin-amd64/minio
GNU/Linux 64-bit Intel https://dl.min.io/server/minio/release/linux-amd64/minio
Microsoft Windows 64-bit https://dl.min.io/server/minio/release/windows-amd64/minio.exe

Docker Container Download

docker pull minio/minio:RELEASE.2020-04-23T00-58-49Z

Questions

If you have any questions or comments regarding this advisory please reach out to us any of the following means.

References

@harshavardhana harshavardhana published to minio/minio Apr 23, 2020
Published by the National Vulnerability Database Apr 23, 2020
Published to the GitHub Advisory Database May 24, 2021
Last updated Feb 1, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

EPSS score

0.116%
(47th percentile)

Weaknesses

CVE ID

CVE-2020-11012

GHSA ID

GHSA-xv4r-vccv-mg4w

Source code

Credits

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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