CVE-2021-2239 : Exploit Details and Defense Strategies

This CVE-2021-2239 affects the Oracle Time and Labor product of Oracle E-Business Suite, specifically the Timecard component. The vulnerability exists in versions 12.1.1-12.1.3 and 12.2.3-12.2.10, potentially allowing a low privileged attacker to compromise Oracle Time and Labor.

Understanding CVE-2021-2239

This section delves into the details of the vulnerability including its impact and the affected systems.

What is CVE-2021-2239?

The vulnerability in the Oracle Time and Labor product of Oracle E-Business Suite enables a low privileged attacker with network access via HTTP to compromise critical data and gain unauthorized access to all Oracle Time and Labor accessible data. The CVSS 3.1 Base Score is 8.1 with high confidentiality and integrity impacts.

The Impact of CVE-2021-2239

The successful exploitation of this vulnerability can lead to unauthorized creation, deletion, or modification of critical data within Oracle Time and Labor. It can also result in complete unauthorized access to all Oracle Time and Labor accessible data.

Technical Details of CVE-2021-2239

This section provides insight into the specifics of the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The vulnerability allows a low privileged attacker with network access via HTTP to compromise Oracle Time and Labor, leading to unauthorized data access and modification.

Affected Systems and Versions

Versions 12.1.1-12.1.3 and 12.2.3-12.2.10 of the Oracle Time and Labor product in the Oracle E-Business Suite are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by a low privileged attacker over the network via HTTP to gain unauthorized access to critical data within Oracle Time and Labor.

Mitigation and Prevention

In this section, we discuss the steps to mitigate and prevent exploitation of CVE-2021-2239.

Immediate Steps to Take

Apply security patches provided by Oracle to mitigate the vulnerability.
Implement network security measures to restrict access to vulnerable components.

Long-Term Security Practices

Regularly update and patch Oracle E-Business Suite to prevent known vulnerabilities.
Implement least privilege access policies to limit the impact of potential breaches.

Patching and Updates

Stay informed about security updates released by Oracle for the Time and Labor product to ensure protection against known vulnerabilities.