CVE-2021-2392 : Vulnerability Insights and Analysis

A vulnerability has been identified in the Oracle BI Publisher product of Oracle Fusion Middleware, specifically in the BI Publisher Security component. This vulnerability affects multiple versions of the product, allowing a low privileged attacker to compromise Oracle BI Publisher via network access. Successful exploitation could lead to a complete takeover of Oracle BI Publisher with a CVSS 3.1 Base Score of 8.8.

Understanding CVE-2021-2392

This section delves into the details of CVE-2021-2392, shedding light on its impact, technical aspects, and mitigation strategies.

What is CVE-2021-2392?

The vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware allows attackers with network access to compromise the system. The affected versions include 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0.

The Impact of CVE-2021-2392

With a CVSS 3.1 Base Score of 8.8, this vulnerability poses significant risks to the confidentiality, integrity, and availability of Oracle BI Publisher, potentially resulting in a complete takeover.

Technical Details of CVE-2021-2392

Let's dive into the specifics of CVE-2021-2392, including how the vulnerability manifests, affected systems, and the exploitation mechanism.

Vulnerability Description

The flaw in the BI Publisher Security component allows attackers with low privileges and network access via HTTP to compromise Oracle BI Publisher, potentially leading to a complete system takeover.

Affected Systems and Versions

The vulnerability impacts several versions of the Oracle BI Publisher product, including 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0, making a wide range of systems susceptible to exploitation.

Exploitation Mechanism

The vulnerability is easily exploitable, requiring only network access via HTTP for low privileged attackers to compromise Oracle BI Publisher. Successful exploitation could result in a complete system takeover.

Mitigation and Prevention

In this section, we explore the steps that organizations can take to mitigate the risks posed by CVE-2021-2392 and prevent potential exploitation.

Immediate Steps to Take

To address CVE-2021-2392, organizations should consider implementing immediate security measures, such as applying patches, restricting network access, and monitoring system activity closely.

Long-Term Security Practices

In the long term, organizations are advised to maintain robust cybersecurity practices, including regular security assessments, employee training, and staying informed about security advisories.

Patching and Updates

Vendor patches and updates should be promptly applied to ensure that systems are protected against known vulnerabilities and security risks.