CVE-2022-24375 : What You Need to Know
Learn about CVE-2022-24375, a vulnerability in node-opcua package before 2.74.0 leading to Denial of Service (DoS) attacks via memory consumption. Understand the impact, affected systems, and mitigation steps.
A detailed overview of CVE-2022-24375, a vulnerability in the package node-opcua before version 2.74.0 that leads to Denial of Service (DoS) attacks via excessive memory consumption.
Understanding CVE-2022-24375
This section provides insights into the nature and impact of the CVE-2022-24375 vulnerability in the node-opcua package.
What is CVE-2022-24375?
The package node-opcua before version 2.74.0 is susceptible to Denial of Service (DoS) attacks. It allows malicious actors to create a DoS condition by bypassing memory consumption limitations.
The Impact of CVE-2022-24375
The impact of this vulnerability is rated as HIGH with a CVSS base score of 7.5. Attackers can exploit it to cause a DoS situation by sending specific requests.
Technical Details of CVE-2022-24375
In this section, the technical aspects of the CVE-2022-24375 vulnerability are discussed.
Vulnerability Description
The vulnerability arises due to a flaw in handling CloseSession requests with specific parameters, enabling attackers to trigger excessive memory consumption.
Affected Systems and Versions
The issue affects the node-opcua package versions prior to 2.74.0. Users with these versions are at risk of facing DoS attacks.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending multiple CloseSession requests with the deleteSubscription parameter set to False, leading to uncontrolled memory usage.
Mitigation and Prevention
In this section, mitigation strategies and best practices to prevent exploitation of CVE-2022-24375 are outlined.
Immediate Steps to Take
To mitigate the risk, users should update the node-opcua package to version 2.74.0 or later. Additionally, monitoring for unusual memory consumption can help detect potential DoS attacks.
Long-Term Security Practices
Adopting secure coding practices, regular security audits, and staying updated with patches and security alerts can enhance the overall security posture.
Patching and Updates
Regularly checking for software updates, especially security patches, and promptly applying them can address known vulnerabilities and strengthen the defense against potential attacks.