CVE-2018-2939 : Exploit Details and Defense Strategies

A security flaw in the Core RDBMS component of Oracle Database Server affecting versions 11.2.0.4, 12.1.0.2, 12.2.0.1, 18.1, and 18.2, with a CVSS 3.0 Base Score of 8.4.

Understanding CVE-2018-2939

This CVE involves a vulnerability in Oracle Database Server's Core RDBMS component, potentially leading to unauthorized data manipulation and denial of service attacks.

What is CVE-2018-2939?

The vulnerability allows a low-privileged attacker with Local Logon privilege to compromise Core RDBMS, impacting critical data and potentially causing a denial of service.

The Impact of CVE-2018-2939

Unauthorized manipulation, deletion, or creation of critical data within Core RDBMS
Potential for a denial of service by crashing Core RDBMS
CVSS 3.0 Base Score of 8.4, indicating integrity and availability impacts

Technical Details of CVE-2018-2939

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in the Core RDBMS component of Oracle Database Server allows unauthorized access and potential data manipulation.

Affected Systems and Versions

Oracle Database versions 11.2.0.4, 12.1.0.2, 12.2.0.1, 18.1, and 18.2

Exploitation Mechanism

Low-privileged attacker with Local Logon privilege
Access to the infrastructure where Core RDBMS operates

Mitigation and Prevention

Protecting systems from CVE-2018-2939 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by Oracle promptly
Restrict access to vulnerable systems
Monitor for any unauthorized access or unusual activities

Long-Term Security Practices

Regular security training for employees
Implement least privilege access controls
Conduct regular security audits and assessments

Patching and Updates

Regularly check for security updates from Oracle
Apply patches and updates as soon as they are released