CVE-2019-10953 : Security Advisory and Response

Programmable Logic Controllers (PLCs) from various manufacturers such as ABB, Phoenix Contact, Schneider Electric, Siemens, and WAGO have been identified as potentially vulnerable to a denial-of-service (DoS) attack caused by an overwhelming influx of network packets, according to recent research.

Understanding CVE-2019-10953

This CVE involves a vulnerability in Programmable Logic Controllers (PLCs) from multiple vendors that could be exploited to launch a denial-of-service (DoS) attack.

What is CVE-2019-10953?

CVE-2019-10953 is a vulnerability that affects Programmable Logic Controllers (PLCs) from ABB, Phoenix Contact, Schneider Electric, Siemens, and WAGO, potentially allowing attackers to disrupt the normal operation of these devices through a DoS attack.

The Impact of CVE-2019-10953

This vulnerability could lead to a significant disruption in industrial processes that rely on these PLCs, potentially causing downtime and financial losses for affected organizations.

Technical Details of CVE-2019-10953

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in PLCs from ABB, Phoenix Contact, Schneider Electric, Siemens, and WAGO allows for a DoS attack through the flooding of network packets, potentially leading to a system crash or unresponsiveness.

Affected Systems and Versions

Affected systems: Programmable Logic Controllers (PLCs) from ABB, Phoenix Contact, Schneider Electric, Siemens, and WAGO
Affected versions: Multiple

Exploitation Mechanism

Attackers can exploit this vulnerability by sending an overwhelming amount of network packets to the affected PLCs, causing them to become unresponsive or crash.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-10953 and prevent potential attacks.

Immediate Steps to Take

Monitor network traffic for any unusual patterns that could indicate a DoS attack targeting PLCs.
Implement network segmentation to isolate PLCs from potentially malicious traffic.
Apply access controls and firewall rules to limit unauthorized access to PLCs.

Long-Term Security Practices

Regularly update and patch PLC firmware to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses in PLC configurations.
Provide cybersecurity training for personnel to recognize and respond to potential threats targeting PLCs.

Patching and Updates

Stay informed about security advisories and updates from PLC vendors to apply patches promptly and enhance the security of PLCs.