CVE-2019-2731 Missing authorization in MySQL Server

What is CVE-2019-2731?

CVE-2019-2731 is a medium-severity missing authorization vulnerability in Oracle Mysql, published on 23 Jul 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 5.7.23 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Server accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.0 Base Score 5.4 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L).

Which versions are affected by CVE-2019-2731?

It affects 1 product.

Products include Oracle Mysql.

How do I fix CVE-2019-2731?

Upgrade to a fixed version.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-2731 being exploited?

There is no known exploitation of CVE-2019-2731 in the wild and no public exploit code.

Other vulnerabilities in Oracle Mysql

• CVE-2016-0639 Auth bypass in n/a Critical 9.8
• CVE-2003-0150 Privilege escalation in n/a Critical 9.0
• CVE-2005-2572 Denial of service in n/a High 8.5
• CVE-2020-14878 Auth bypass in MySQL Server High 8.0
• CVE-2002-0969 Memory corruption in n/a High 7.8

All Oracle Mysql vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r324-w5w4-pgc6, UBUNTU-CVE-2019-2731.