CVE-2018-10632 : Vulnerability Insights and Analysis

CVE-2018-10632 was published on July 19, 2018, by the ICS-CERT. It affects Moxa NPort 5210, 5230, and 5232 devices running versions 2.9 build 17030709 and earlier.

Understanding CVE-2018-10632

This CVE identifies a vulnerability in certain Moxa NPort devices that could lead to a denial-of-service scenario due to uncontrolled resource consumption.

What is CVE-2018-10632?

The vulnerability in versions 2.9 build 17030709 and prior of Moxa NPort 5210, 5230, and 5232 allows malicious users to request unlimited resources, potentially causing a denial-of-service situation.

The Impact of CVE-2018-10632

The uncontrolled resource consumption vulnerability could result in a denial-of-service condition, disrupting the normal operation of the affected devices.

Technical Details of CVE-2018-10632

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in Moxa NPort devices enables malicious actors to exhaust resources without any restrictions, leading to a denial-of-service risk.

Affected Systems and Versions

Product: NPort 5210, 5230, and 5232
Vendor: Moxa
Vulnerable Version: 2.9 build 17030709 and prior

Exploitation Mechanism

Malicious users can exploit this vulnerability by sending requests for resources beyond the device's capacity, overwhelming it and causing a denial-of-service situation.

Mitigation and Prevention

Protecting systems from CVE-2018-10632 requires immediate actions and long-term security practices.

Immediate Steps to Take

Implement network segmentation to isolate vulnerable devices
Monitor network traffic for any unusual resource requests
Apply firewall rules to restrict access to affected devices

Long-Term Security Practices

Regularly update firmware and security patches for the devices
Conduct security assessments and penetration testing to identify vulnerabilities
Educate users on best security practices to prevent exploitation

Patching and Updates

Check the vendor's website for patches or updates addressing the vulnerability
Apply recommended security updates promptly to mitigate the risk of exploitation