CVE-2023-21959 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2023-21959, a vulnerability in the Oracle iReceivables product of Oracle E-Business Suite, affecting versions 12.2.3 to 12.2.12. The vulnerability allows a low-privileged attacker with network access via HTTP to compromise Oracle iReceivables, potentially leading to unauthorized read access to a subset of Oracle iReceivables accessible data.

Understanding CVE-2023-21959

Below is an overview of what CVE-2023-21959 entails, including its description, impact, and technical details.

What is CVE-2023-21959?

CVE-2023-21959 is a vulnerability present in the Oracle iReceivables product of Oracle E-Business Suite. The flaw can be exploited by a low-privileged attacker with network access via HTTP to compromise Oracle iReceivables, specifically leading to unauthorized read access to certain data.

The Impact of CVE-2023-21959

The impact of CVE-2023-21959 is significant as it can result in unauthorized access to sensitive information within Oracle iReceivables. The confidentiality of the accessible data is compromised, posing a risk to the security and privacy of affected systems.

Technical Details of CVE-2023-21959

Here are the technical aspects of CVE-2023-21959, including the vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability allows a low-privileged attacker with network access via HTTP to exploit Oracle iReceivables, potentially gaining unauthorized read access to a subset of accessible data within the software.

Affected Systems and Versions

Oracle iReceivables versions 12.2.3 to 12.2.12 are impacted by CVE-2023-21959, leaving them vulnerable to exploitation by attackers with low privileges and network access via HTTP.

Exploitation Mechanism

The vulnerability is easily exploitable by allowing attackers to compromise Oracle iReceivables through network access via HTTP. Successful exploitation could lead to unauthorized data access within the affected versions.

Mitigation and Prevention

To address CVE-2023-21959 and prevent potential exploitation, the following steps can be taken to enhance the security of Oracle iReceivables.

Immediate Steps to Take

Organizations should apply security patches provided by the vendor promptly.
Monitor network traffic for any suspicious activity targeting Oracle iReceivables.
Restrict network access to vulnerable systems to minimize the risk of unauthorized exploitation.

Long-Term Security Practices

Conduct regular security assessments and vulnerability scans to identify and address any security weaknesses.
Implement proper access controls and user privileges to limit unauthorized access to sensitive data.
Educate employees on security best practices and the importance of maintaining a secure computing environment.

Patching and Updates

Oracle has released security patches to address CVE-2023-21959. It is crucial for organizations using affected versions of Oracle iReceivables to apply these patches promptly to mitigate the risk of exploitation and enhance system security.