CVE-2018-2759 : Exploit Details and Defense Strategies

Oracle MySQL Server vulnerability impacting versions 5.7.21 and earlier, allowing high privileged attackers to compromise the server.

Understanding CVE-2018-2759

The MySQL Server component of Oracle MySQL, specifically the InnoDB subcomponent, is vulnerable to exploitation by high privileged attackers with network access.

What is CVE-2018-2759?

The vulnerability in MySQL Server (InnoDB) versions 5.7.21 and prior allows unauthorized actions by attackers, potentially leading to server hang or frequent crashes, resulting in denial of service.

The Impact of CVE-2018-2759

CVSS 3.0 Base Score: 4.9 (Availability impact)
Attackers can compromise MySQL Server through various protocols
Successful exploitation can lead to unauthorized actions causing server hang or frequent crashes

Technical Details of CVE-2018-2759

The technical aspects of the vulnerability in Oracle MySQL Server.

Vulnerability Description

Easily exploitable vulnerability in MySQL Server's InnoDB subcomponent
High privileged attackers with network access can compromise the server

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Affected Version: 5.7.21 and prior

Exploitation Mechanism

Attackers with network access can exploit the vulnerability
Successful attacks can lead to unauthorized actions causing server hang or crashes

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2018-2759 vulnerability.

Immediate Steps to Take

Apply security patches provided by Oracle
Monitor network traffic for any suspicious activity
Restrict network access to the MySQL Server

Long-Term Security Practices

Regularly update MySQL Server to the latest version
Implement network segmentation to limit access to critical servers

Patching and Updates

Stay informed about security advisories from Oracle
Apply patches promptly to address known vulnerabilities