CVE-2021-42988 : Security Advisory and Response

Eltima USB Network Gate is affected by Buffer Overflow, allowing local attackers to execute arbitrary code in kernel mode or cause denial of service. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2021-42988

Eltima USB Network Gate is vulnerable to Buffer Overflow, exposing systems to potential code execution or denial of service attacks.

What is CVE-2021-42988?

The vulnerability in the IOCTL Handler 0x22001B of USB Network Gate versions above 7.0.1370 and below 9.2.2420 enables local attackers to exploit specially crafted I/O Request Packets.

The Impact of CVE-2021-42988

Allows local attackers to execute arbitrary code in kernel mode
Can cause denial of service, leading to memory corruption and OS crash

Technical Details of CVE-2021-42988

Eltima USB Network Gate vulnerability specifics and affected systems.

Vulnerability Description

The vulnerability arises from the IOCTL Handler 0x22001B in USB Network Gate, allowing for arbitrary code execution or denial of service attacks.

Affected Systems and Versions

USB Network Gate versions above 7.0.1370
USB Network Gate versions below 9.2.2420

Exploitation Mechanism

Local attackers exploit specially crafted I/O Request Packets

Mitigation and Prevention

Preventive measures to address CVE-2021-42988.

Immediate Steps to Take

Update USB Network Gate to version 9.2.2420 or higher
Implement network segmentation to restrict access

Long-Term Security Practices

Regularly monitor and patch vulnerable systems
Conduct security assessments and penetration testing
Educate users on safe computing practices

Patching and Updates

Apply security patches and updates provided by Eltima to mitigate the vulnerability