CVE-2021-2335 : What You Need to Know

A vulnerability has been identified in the Oracle Database - Enterprise Edition Data Redaction component of Oracle Database Server. This vulnerability affects versions 12.1.0.2, 12.2.0.1, and 19c. An attacker with Create Session privilege and network access via Oracle Net could compromise the Data Redaction, potentially leading to unauthorized data access.

Understanding CVE-2021-2335

This section delves into the details of CVE-2021-2335, its impact, technical description, affected systems, and mitigation strategies.

What is CVE-2021-2335?

The vulnerability in the Oracle Database affects the Data Redaction component, allowing attackers with specific privileges to compromise the system, potentially leading to unauthorized data access.

The Impact of CVE-2021-2335

Successful exploitation of this vulnerability could result in unauthorized update, insert, or delete access to sensitive data within the Oracle Database - Enterprise Edition Data Redaction.

Technical Details of CVE-2021-2335

Let's explore the technical aspects of CVE-2021-2335, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

This vulnerability allows low-privileged attackers with Create Session privilege and network access via Oracle Net to compromise the Data Redaction component, potentially leading to data breaches.

Affected Systems and Versions

The affected systems include Oracle Database - Enterprise Edition versions 12.1.0.2, 12.2.0.1, and 19c. Users of these versions are at risk of unauthorized data access.

Exploitation Mechanism

To exploit this vulnerability, attackers need Create Session privileges and network access via Oracle Net. Successful attacks may require human interaction outside the attacker.

Mitigation and Prevention

Discover the actions you can take to mitigate the risks posed by CVE-2021-2335 and prevent unauthorized access to your Oracle Database.

Immediate Steps to Take

Implement immediate security measures such as restricting network access and closely monitoring privileged accounts to prevent potential exploits.

Long-Term Security Practices

Incorporate regular security audits, ensure timely software updates, and provide comprehensive security training to mitigate similar vulnerabilities in the future.

Patching and Updates

Stay informed about security patches and updates released by Oracle Corporation to address CVE-2021-2335 and strengthen your system's defenses.