MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, MariaDB's ACL cache could generate the same database-privilege cache key for role and localhost user names that matched because both used an empty IP component. An attacker with CREATE USER could create the colliding principal and, when the original principal's database privileges were cached, exercise privileges assigned to the other account.
This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 9
https://github.com/MariaDB/server/commit/67ea07dd3400004e4f7ae01bf977f4344bbe06…
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
security-advisories@github.com
https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
security-advisories@github.com
https://github.com/MariaDB/server/security/advisories/GHSA-2m85-2x26-36rf
security-advisories@github.com
https://jira.mariadb.org/browse/MDEV-40541
security-advisories@github.com