CVE-2021-2328 : Security Advisory and Response

A vulnerability has been identified in the Oracle Text component of Oracle Database Server, affecting versions 12.1.0.2, 12.2.0.1, and 19c. This vulnerability could allow a high privileged attacker to compromise Oracle Text, potentially resulting in a takeover.

Understanding CVE-2021-2328

This section will provide insights into the nature and implications of the CVE-2021-2328 vulnerability.

What is CVE-2021-2328?

The vulnerability lies in the Oracle Text component of Oracle Database Server. Attackers with specific privileges can exploit this vulnerability over the network to compromise Oracle Text, potentially leading to a complete takeover of the service.

The Impact of CVE-2021-2328

Successful exploitation of this vulnerability can have severe impacts on the confidentiality, integrity, and availability of Oracle Text service, with a CVSS 3.1 Base Score of 7.2 (High Severity).

Technical Details of CVE-2021-2328

In this section, we will delve deeper into the technical aspects of CVE-2021-2328.

Vulnerability Description

The vulnerability allows high privileged attackers to exploit Oracle Text via Oracle Net, compromising its security and integrity.

Affected Systems and Versions

The impacted systems include Oracle Database Server versions 12.1.0.2, 12.2.0.1, and 19c where Oracle Text is present.

Exploitation Mechanism

Attackers with 'Create Any Procedure' and 'Alter Any Table' privileges, in conjunction with network access via Oracle Net, can exploit this vulnerability to compromise Oracle Text.

Mitigation and Prevention

To safeguard systems from the CVE-2021-2328 vulnerability, certain actions can be taken to minimize risks.

Immediate Steps to Take

It is recommended to apply security patches released by Oracle to address this vulnerability and secure Oracle Text.

Long-Term Security Practices

Regularly monitor and update Oracle Database Server to ensure all security patches are up-to-date, thereby strengthening the overall security posture.

Patching and Updates

Keep the Oracle Database Server and associated components updated with the latest security patches and follow vendor recommendations for securing Oracle Text.