#VU64786 Improper Authorization in minio - CVE-2021-41137


Vulnerability identifier: #VU64786

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-41137

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
minio
Other software / Other software solutions

Vendor: minio.io

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to policy restriction does not work properly for users who did not have service (svc) or security token service (STS) accounts. A remote user can bypass policy restrictions on regular users and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

minio: 2021-10-10T16-53-30Z


External links
https://github.com/minio/minio/security/advisories/GHSA-v64v-g97p-577c
https://github.com/minio/minio/pull/13388
https://github.com/minio/minio/pull/13422
https://github.com/minio/minio/commit/415bbc74aacd53a120e54a663e941b1809982dbd


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability