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CVE-2020-7221

7.8 · HIGH

mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attac…

Published Feb 4, 2020CWE-59EPSS 0.67%

Overview

CVE-2020-7221 is a high-severity vulnerability. It was published on February 4, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attack on a chmod 04755 of auth_pam_tool_dir/auth_pam_tool. NOTE: this does not affect the Oracle MySQL product, which implements mysql_install_db differently.

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

Refbugzilla.suse.com/show_bug.cgi?id=1160868GitHubgithub.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618Refseclists.org/oss-sec/2020/q1/55Refbugzilla.suse.com/show_bug.cgi?id=1160868GitHubgithub.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618Refseclists.org/oss-sec/2020/q1/55

How CyberStrike helps

Frequently asked questions

What is CVE-2020-7221?

CVE-2020-7221 is a high-severity vulnerability. It was published on February 4, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2020-7221?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-7221?

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-2020-7221?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-7221 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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