CVE-2023-25141 Explained : Impact and Mitigation

This CVE-2023-25141 involves a critical injection vulnerability in Apache Sling JCR Base, specifically when running on outdated JDK versions (JDK 1.8.191 or earlier). The vulnerability stems from utility functions in RepositoryAccessor, where the functions getRepository and getRepositoryFromURL can permit an application to access data stored remotely via JDNI and RMI. Users of Apache Sling JCR Base are strongly advised to upgrade to version 3.1.12 or newer or alternatively run on a more recent JDK.

Understanding CVE-2023-25141

In this section, we will delve deeper into the essential aspects of CVE-2023-25141 to comprehend its implications, impact, and how to address the vulnerability effectively.

What is CVE-2023-25141?

The vulnerability CVE-2023-25141 in Apache Sling JCR Base exposes a critical injection flaw when operating on outdated JDK versions, potentially allowing unauthorized access to data stored remotely via JDNI and RMI. This type of vulnerability falls under CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').

The Impact of CVE-2023-25141

If exploited, this vulnerability could enable malicious actors to execute arbitrary code remotely, compromise sensitive data, or disrupt the functionality of applications running on affected versions of Apache Sling JCR Base. The severity of this vulnerability is classified as critical, emphasizing the urgency of mitigation measures.

Technical Details of CVE-2023-25141

To address and prevent the exploitation of CVE-2023-25141 effectively, it is crucial to understand the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The critical injection vulnerability in Apache Sling JCR Base (versions less than 3.1.12) arises from the improper handling of input within utility functions, allowing unauthorized access to remote data via JDNI and RMI. This flaw poses a significant risk to the security and integrity of affected systems, necessitating prompt action.

Affected Systems and Versions

Apache Sling JCR Base versions prior to 3.1.12, particularly when operating on JDK versions 1.8.191 or earlier, are susceptible to this critical injection vulnerability. It is essential for users of these versions to take immediate steps to mitigate the risk.

Exploitation Mechanism

The vulnerability in Apache Sling JCR Base can be exploited by malicious actors leveraging the utility functions getRepository and getRepositoryFromURL to interact with data stored remotely through JDNI and RMI. Understanding the exploitation mechanism is crucial in implementing effective security measures.

Mitigation and Prevention

To address CVE-2023-25141 and enhance the security posture of systems running Apache Sling JCR Base, prompt actions, long-term security practices, and adherence to patching and updates are essential.

Immediate Steps to Take

Users of Apache Sling JCR Base versions less than 3.1.12 should upgrade to the latest version promptly to mitigate the critical injection vulnerability. Additionally, transitioning to a more recent JDK version can enhance the security of the environment.

Long-Term Security Practices

Implementing robust input validation mechanisms, restricting access to sensitive functions, and regularly updating software components are essential long-term security practices to prevent similar vulnerabilities in the future.

Patching and Updates

Staying vigilant about security advisories, promptly applying patches released by the vendor, and maintaining a proactive approach to updating software components can effectively reduce the risk of exploitation and enhance the overall security posture.