Vulnerability CVE-2021-27928
Published: 2021-03-19

Description:
A remote code execution issue was discovered in MariaDB 10.2 before 10.2.37, 10.3 before 10.3.28, 10.4 before 10.4.18, and 10.5 before 10.5.9; Percona Server through 2021-03-03; and the wsrep patch through 2021-03-03 for MySQL. An untrusted search path leads to eval injection, in which a database SUPER user can execute OS commands after modifying wsrep_provider and wsrep_notify_cmd. NOTE: this does not affect an Oracle product.

See advisories in our WLB2 database:
Topic
Author
Date
High
MariaDB 10.2 /MySQL wsrep_provider OS Command Execution
Central InfoSec
21.04.2021

Type:

CWE-78

 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') )

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
10/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Percona -> Percona server 
Mariadb -> Mariadb 
Galeracluster -> Wsrep 
Debian -> Debian linux 

 References:
https://jira.mariadb.org/browse/MDEV-25179
https://lists.debian.org/debian-lts-announce/2021/03/msg00028.html
https://mariadb.com/kb/en/mariadb-10237-release-notes/
https://mariadb.com/kb/en/mariadb-10328-release-notes/
https://mariadb.com/kb/en/mariadb-10418-release-notes/
https://mariadb.com/kb/en/mariadb-1059-release-notes/
https://mariadb.com/kb/en/security/
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