CVE-2022-23463 : Security Advisory and Response

Nepxion Discovery, a solution for Spring Cloud, is vulnerable to SpEL Injection in discovery-commons, allowing Remote Code Execution due to the evaluation of expressions with a StandardEvaluationContext.

Understanding CVE-2022-23463

This CVE highlights a critical vulnerability in Nepxion Discovery that can lead to serious security implications.

What is CVE-2022-23463?

Nepxion Discovery, specifically Discover versions less than or equal to 6.16.2, is prone to SpEL Injection, enabling attackers to execute remote code through expression evaluation.

The Impact of CVE-2022-23463

The CVSS base score of 9.4 categorizes this vulnerability as critical. It poses high risks to confidentiality, integrity, and availability, without requiring any privileges for exploitation.

Technical Details of CVE-2022-23463

This section delves into the specifics of the vulnerability.

Vulnerability Description

The issue lies in DiscoveryExpressionResolver's eval method, which permits expressions to interact with Java classes like java.lang.Runtime, potentially leading to remote code execution.

Affected Systems and Versions

Nepxion Discover version 6.16.2 and below are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability through network-based vectors with low attack complexity, posing significant risks to affected systems.

Mitigation and Prevention

Protecting systems from CVE-2022-23463 is crucial for maintaining security.

Immediate Steps to Take

As there is no available patch at the time of publication, organizations should stay vigilant and implement alternative security measures.

Long-Term Security Practices

Employ strict input validation mechanisms to mitigate the risk of injection attacks and regularly monitor for any signs of compromise.

Patching and Updates

Keep abreast of vendor updates for Nepxion Discovery and apply patches promptly to address this critical security flaw.