SB2021122728 - Improper Privilege Management in minio.io minio
Published: December 27, 2021 Updated: August 9, 2023
Security Bulletin ID
SB2021122728
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Privilege Management (CVE-ID: CVE-2021-43858)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: 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:P/U:Amber
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to improper privilege management in AddUser() function admin API. A remote user can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges.
Remediation
Install update from vendor's website.
References
- https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf
- https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z
- https://github.com/minio/minio/pull/13976
- https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx
- https://github.com/minio/minio/pull/7949
- https://bugzilla.redhat.com/show_bug.cgi?id=2036252