CVE-2019-6559 : Exploit Details and Defense Strategies

Moxa IKS and EDS software products have a vulnerability that allows authenticated remote users to trigger a denial of service by sending a specially crafted packet.

Understanding CVE-2019-6559

The vulnerability in Moxa IKS and EDS software products can lead to a denial of service attack when exploited by authenticated remote users.

What is CVE-2019-6559?

The vulnerability in Moxa IKS and EDS software products enables authenticated remote users to crash the switch by sending a specifically crafted packet, resulting in a denial of service.

The Impact of CVE-2019-6559

Exploitation of this vulnerability can lead to a denial of service, disrupting the normal operation of the affected switches.

Technical Details of CVE-2019-6559

This section provides technical details of the CVE-2019-6559 vulnerability.

Vulnerability Description

The vulnerability in Moxa IKS and EDS software products allows authenticated remote users to crash the switch by sending a specially crafted packet, causing a denial of service.

Affected Systems and Versions

Products: Moxa IKS, EDS
Vendor: ICS-CERT
Versions Affected: IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and prior, EDS-510A series Version 3.8 and prior

Exploitation Mechanism

The vulnerability can be exploited by authenticated remote users sending a specially crafted packet to the affected switches, triggering a crash and resulting in a denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-6559 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates to mitigate the vulnerability.
Implement network segmentation to limit access to affected switches.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security training for users to recognize and report suspicious activities.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Regularly check for updates and patches from the vendor to address the CVE-2019-6559 vulnerability.