CVE-2020-3175 : What You Need to Know

A vulnerability in the resource handling system of Cisco NX-OS Software for Cisco MDS 9000 Series Multilayer Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

Understanding CVE-2020-3175

This CVE involves a vulnerability in Cisco NX-OS Software for Cisco MDS 9000 Series Multilayer Switches that could lead to a DoS attack.

What is CVE-2020-3175?

The vulnerability arises from improper resource usage control, enabling attackers to disrupt affected devices by sending high-rate traffic to the management interface.

The Impact of CVE-2020-3175

CVSS Base Score: 8.6 (High Severity)
Attack Vector: Network
Availability Impact: High
The vulnerability could result in high CPU usage, process crashes, or system reboots on affected devices.

Technical Details of CVE-2020-3175

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in the resource handling system of Cisco NX-OS Software for Cisco MDS 9000 Series Multilayer Switches allows remote, unauthenticated attackers to trigger a DoS condition.

Affected Systems and Versions

Affected Product: Cisco NX-OS Software 5.0(1a)
Vendor: Cisco
Version: Unspecified

Exploitation Mechanism

Attackers can exploit this vulnerability by flooding the management interface (mgmt0) of an affected device with high-rate traffic.

Mitigation and Prevention

Protecting systems from CVE-2020-3175 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Implement network traffic monitoring to detect and mitigate potential attacks.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Configure network devices to minimize exposure to potential threats.

Patching and Updates

Regularly check for security advisories and updates from Cisco to ensure systems are protected against known vulnerabilities.