CVE-2021-44527 : Vulnerability Insights and Analysis

A vulnerability found in UniFi Switch firmware Version 5.43.35 and earlier allows a malicious actor to perform a DoS attack. This CVE affects UniFi Switches and is fixed in version 5.76.6.

Understanding CVE-2021-44527

This CVE involves a Denial of Service vulnerability in UniFi Switch firmware, allowing network access for a DoS attack.

What is CVE-2021-44527?

The CVE-2021-44527 vulnerability found in UniFi Switch firmware Version 5.43.35 and earlier enables a malicious actor to conduct a Denial of Service attack on the affected switch.

The Impact of CVE-2021-44527

The vulnerability allows an attacker who has network access to execute a DoS attack on the impacted UniFi Switch, potentially disrupting network services.

Technical Details of CVE-2021-44527

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability in UniFi Switch firmware Version 5.43.35 and earlier permits a malicious actor with network access to launch a Denial of Service (DoS) attack on the affected switch. This issue is resolved in UniFi Switch firmware 5.76.6.

Affected Systems and Versions

Product: UniFi Switches
Versions Affected: Up to Version 5.43.35
Fixed Version: 5.76.6

Exploitation Mechanism

The vulnerability is exploited by an attacker with access to the network initiating a Denial of Service attack on the impacted UniFi Switch.

Mitigation and Prevention

Protective measures to address the CVE.

Immediate Steps to Take

Upgrade affected UniFi Switches to firmware Version 5.76.6 or later to mitigate the vulnerability.
Implement network segmentation to restrict unauthorized access.

Long-Term Security Practices

Regularly update firmware and security patches for all network devices.
Conduct security audits and penetration tests to identify and address vulnerabilities.

Patching and Updates

Ensure timely application of vendor-provided patches and firmware upgrades to safeguard network infrastructure.