Main Vulnerability Database Vulnerabilities #VU64791

Improper Authorization in minio - CVE-2021-21362

Published: June 29, 2022

Vulnerability identifier: #VU64791

CSH Severity: Low

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-21362

CWE-ID: CWE-285

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to modify files on the system.

The vulnerability exists due to improper authorization error in MinIO. A remote user can bypass a readOnly policy by creating a temporary 'mc share upload' URL.

Affected software

minio
Arch Linux
minio

How to mitigate CVE-2021-21362

Install updates from vendor's website.

minio - update to 2021-03-04T00-53-13Z
minio - update to 2021.03.04-1

External References

https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482
https://github.com/minio/minio/pull/11682
https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13Z
https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v

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