CVE-2023-28462 : Vulnerability Insights and Analysis

This CVE-2023-28462 was published on March 30, 2023, and involves a vulnerability in Payara Server versions 4.1.2.191 (Enterprise), 5.20.0 and newer (Enterprise), and 5.2020.1 and newer (Community) when using Java 1.8u181 and earlier. Attackers can exploit this vulnerability to load malicious code onto the server during a JNDI directory scan.

Understanding CVE-2023-28462

This section will delve into the details of CVE-2023-28462, exploring what the vulnerability entails and its potential impact.

What is CVE-2023-28462?

CVE-2023-28462 involves a JNDI rebind operation in the default ORB listener of Payara Server versions specified earlier. When Java 1.8u181 and older versions are utilized, remote attackers can exploit this vulnerability to inject and execute malicious code on the server when a JNDI directory scan is initiated.

The Impact of CVE-2023-28462

The impact of this vulnerability is significant as it allows remote attackers to compromise the integrity and security of Payara Server environments running on vulnerable versions of Java. By loading malicious code onto the server, attackers can potentially disrupt operations and gain unauthorized access to sensitive data.

Technical Details of CVE-2023-28462

In this section, we will delve into the technical aspects of CVE-2023-28462, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Payara Server versions specified allows for a JNDI rebind operation in the default ORB listener, enabling attackers to execute malicious code upon conducting a JNDI directory scan.

Affected Systems and Versions

Payara Server 4.1.2.191 (Enterprise), 5.20.0 and newer (Enterprise), and 5.2020.1 and newer (Community) are affected by this vulnerability when Java 1.8u181 and earlier versions are used.

Exploitation Mechanism

Remote attackers can exploit the CVE-2023-28462 vulnerability by leveraging the JNDI rebind operation in the default ORB listener of the affected Payara Server versions. This exploitation occurs during a JNDI directory scan, allowing the injection and execution of malicious code on the server.

Mitigation and Prevention

To address CVE-2023-28462 and prevent potential security breaches, organizations and users can take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update Payara Server to a non-vulnerable version that addresses the CVE.
Restrict access to the server and implement strong authentication mechanisms.
Monitor server logs for any suspicious activities that may indicate an exploit attempt.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses in server configurations.
Train employees on security best practices to enhance overall cybersecurity posture.

Patching and Updates

Stay informed about security updates released by Payara Server and apply patches promptly to ensure that the system is protected against known vulnerabilities, including CVE-2023-28462.