CVE-2019-2778 : Security Advisory and Response

Oracle MySQL Server versions 5.7.26 and prior, as well as 8.0.16 and prior, are affected by a vulnerability in the Server: Security: Privileges section that allows unauthorized access and partial denial of service.

Understanding CVE-2019-2778

This CVE involves a vulnerability in Oracle MySQL Server that can be exploited by attackers with low privileges and network access, potentially leading to unauthorized data manipulation and partial denial of service.

What is CVE-2019-2778?

The vulnerability in the MySQL Server component of Oracle MySQL affects versions 5.7.26 and earlier, and 8.0.16 and earlier. Attackers with low privileges and network access can exploit this vulnerability through multiple protocols, compromising the MySQL Server.

The Impact of CVE-2019-2778

Unauthorized updates, inserts, or deletions can occur on accessible data within the MySQL Server.
Attackers can cause a partial denial of service (partial DOS) on the MySQL Server.
The Common Vulnerability Scoring System (CVSS) 3.0 Base Score for this vulnerability is 5.4, with impacts on integrity and availability.

Technical Details of CVE-2019-2778

Oracle MySQL Server is susceptible to unauthorized access and partial denial of service due to a vulnerability in the Server: Security: Privileges section.

Vulnerability Description

The vulnerability allows attackers with low privileges and network access to compromise the MySQL Server, potentially leading to unauthorized data manipulation and partial denial of service.

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions affected: 5.7.26 and prior, 8.0.16 and prior

Exploitation Mechanism

Attackers with low privileges and network access can exploit the vulnerability through multiple protocols, compromising the MySQL Server.

Mitigation and Prevention

To address CVE-2019-2778, immediate steps and long-term security practices are recommended.

Immediate Steps to Take

Apply security patches provided by Oracle Corporation.
Monitor and restrict network access to the MySQL Server.
Implement strong authentication mechanisms.

Long-Term Security Practices

Regularly update and patch MySQL Server installations.
Conduct security audits and vulnerability assessments.
Educate users on secure data handling practices.

Patching and Updates

Ensure timely installation of security updates and patches released by Oracle Corporation.