CVE-2017-14028 : Security Advisory and Response
Learn about CVE-2017-14028, a Resource Exhaustion vulnerability in Moxa NPort devices, allowing attackers to deplete memory resources by flooding systems with TCP SYN packets. Find mitigation steps and preventive measures here.
An instance of Resource Exhaustion problem has been detected in various versions of Moxa NPort devices, potentially allowing unauthorized individuals to deplete memory resources by inundating the system with a high volume of TCP SYN packets.
Understanding CVE-2017-14028
What is CVE-2017-14028?
CVE-2017-14028 refers to a Resource Exhaustion vulnerability found in Moxa NPort devices, including versions 2.2, 2.4, 2.6, 2.7, 3.7 (for NPort 5130), and 3.7 (for NPort 5150) and earlier.
The Impact of CVE-2017-14028
This vulnerability could be exploited by attackers to exhaust memory resources, potentially leading to system instability or denial of service.
Technical Details of CVE-2017-14028
Vulnerability Description
The vulnerability allows attackers to deplete memory resources by flooding the system with a large number of TCP SYN packets.
Affected Systems and Versions
- Moxa NPort 5110 Version 2.2
- Moxa NPort 5110 Version 2.4
- Moxa NPort 5110 Version 2.6
- Moxa NPort 5110 Version 2.7
- Moxa NPort 5130 Version 3.7
- Moxa NPort 5150 Version 3.7
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a high volume of TCP SYN packets to the targeted system, causing resource exhaustion.
Mitigation and Prevention
Immediate Steps to Take
- Implement network-level filtering to block excessive TCP SYN packets.
- Monitor network traffic for unusual patterns that may indicate an attack.
Long-Term Security Practices
- Regularly update firmware and security patches for Moxa NPort devices.
- Conduct security assessments to identify and address vulnerabilities proactively.
Patching and Updates
Apply patches and updates provided by Moxa to address the Resource Exhaustion vulnerability in affected NPort devices.