CVE-2021-30063 : Security Advisory and Response
Understand the impact and technical details of CVE-2021-30063 affecting Schneider Electric ConneXium Tofino and Belden Tofino Xenon Security Appliance. Learn how to mitigate and prevent exploitation.
A crafted OPC packet targeting Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance can lead to an OPC enforcer denial of service.
Understanding CVE-2021-30063
This section provides insight into the critical details surrounding CVE-2021-30063.
What is CVE-2021-30063?
The vulnerability in question arises from the ability of malicious actors to exploit crafted OPC packets targeting specific Schneider and Belden devices, resulting in a denial of service for the OPC enforcer.
The Impact of CVE-2021-30063
The exploitation of this vulnerability can lead to disruptions in operations and critical infrastructure where the affected devices are deployed, potentially causing downtime and system unavailability.
Technical Details of CVE-2021-30063
Delve into the technical aspects related to CVE-2021-30063 to understand its nature thoroughly.
Vulnerability Description
Crafted OPC packets directed at Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before version 03.23 and Belden Tofino Xenon Security Appliance can trigger a denial of service within the OPC enforcer module.
Affected Systems and Versions
The vulnerability impacts Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 devices running versions prior to 03.23 and Belden Tofino Xenon Security Appliance systems.
Exploitation Mechanism
Malicious actors can exploit this vulnerability by sending specially crafted OPC packets to the targeted devices, leading to an OPC enforcer denial of service.
Mitigation and Prevention
Explore the necessary steps to mitigate and prevent the exploitation of CVE-2021-30063.
Immediate Steps to Take
Organizations should consider implementing network segmentation, access controls, and intrusion detection systems to mitigate the risk of exploitation. It is crucial to monitor network traffic for any suspicious activity.
Long-Term Security Practices
Regular security assessments, timely software updates, and employee awareness training are essential for maintaining a secure environment and reducing the likelihood of successful attacks.
Patching and Updates
Ensure that affected devices are updated with the latest security patches provided by Schneider Electric and Belden to address the vulnerability and protect against potential threats.