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CVE-2021-27928

7.2 · HIGH

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…

Published Mar 19, 2021CWE-94EPSS 38.44%

Overview

CVE-2021-27928 is a high-severity vulnerability. It was published on March 19, 2021 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/162177/MariaDB-10.2-Command-Execution.htmlRefjira.mariadb.org/browse/MDEV-25179Reflists.debian.org/debian-lts-announce/2021/03/msg00028.htmlRefmariadb.com/kb/en/mariadb-10237-release-notes/Refmariadb.com/kb/en/mariadb-10328-release-notes/Refmariadb.com/kb/en/mariadb-10418-release-notes/Refmariadb.com/kb/en/mariadb-1059-release-notes/Refmariadb.com/kb/en/security/Refsecurity.gentoo.org/glsa/202105-28Refpacketstormsecurity.com/files/162177/MariaDB-10.2-Command-Execution.html

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27928?

CVE-2021-27928 is a high-severity vulnerability. It was published on March 19, 2021 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2021-27928?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-27928?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-27928?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27928 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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