CVE-2021-2336 Explained : Impact and Mitigation

This CVE-2021-2336 pertains to a vulnerability found in the Oracle Database - Enterprise Edition Data Redaction component of Oracle Database Server. The affected versions include 12.1.0.2, 12.2.0.1, and 19c. This vulnerability can be exploited by a low-privileged attacker with the 'Create Session' privilege and network access through Oracle Net, potentially leading to unauthorized data access.

Understanding CVE-2021-2336

This section provides insights into the nature of the CVE-2021-2336 vulnerability.

What is CVE-2021-2336?

CVE-2021-2336 is a vulnerability in the Oracle Database - Enterprise Edition Data Redaction component that allows unauthorized data access.

The Impact of CVE-2021-2336

The vulnerability can result in unauthorized update, insert, or delete access to specific data within Oracle Database - Enterprise Edition Data Redaction component.

Technical Details of CVE-2021-2336

In this section, we delve into the technical aspects of CVE-2021-2336.

Vulnerability Description

The vulnerability permits low-privileged attackers to compromise the Oracle Database - Enterprise Edition Data Redaction with Create Session privilege and network access.

Affected Systems and Versions

The versions affected by CVE-2021-2336 include 12.1.0.2, 12.2.0.1, and 19c of Oracle Database - Enterprise Edition.

Exploitation Mechanism

Successful exploitation of this vulnerability requires human interaction from someone other than the attacker.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the CVE-2021-2336 vulnerability.

Immediate Steps to Take

Organizations are advised to apply relevant security patches and monitor for any unauthorized access.

Long-Term Security Practices

Ensuring proper access control mechanisms and regular security audits can help prevent future breaches.

Patching and Updates

Regularly updating Oracle Database - Enterprise Edition and implementing security patches is crucial to address this vulnerability.