CVE-2020-14878 Auth bypass in MySQL Server

High 8.0 Published 21 Oct 2020 Updated 26 Sep 2024

A low-privileged attacker on the local network can bypass LDAP authentication to take over the MySQL Server.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2020-14878?

CVE-2020-14878 is a high-severity authentication bypass vulnerability in Oracle Mysql, published on 21 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 8.0.21 and prior. Easily exploitable vulnerability allows low privileged attacker with access to the physical communication segment attached to the hardware where the MySQL Server executes to compromise MySQL Server. Successful attacks of this vulnerability can result in takeover of MySQL Server. CVSS 3.1 Base Score 8.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Which versions are affected by CVE-2020-14878?

It affects 1 product.

Products include Oracle Mysql.

How do I fix CVE-2020-14878?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-14878 being exploited?

There is no known exploitation of CVE-2020-14878 in the wild and no public exploit code.

All Oracle Mysql vulnerabilities

Sources

Also known as GHSA-747m-4qjr-r67x, UBUNTU-CVE-2020-14878.