CVE-2020-8157 : Vulnerability Insights and Analysis

UniFi Cloud Key firmware <= v1.1.10 for Cloud Key Gen2 and Cloud Key Gen2 Plus allows unrestricted root access through the serial interface (UART).

Understanding CVE-2020-8157

This CVE involves a vulnerability in UniFi Cloud Key firmware that impacts specific versions of Cloud Key Gen2 and Cloud Key Gen2 Plus.

What is CVE-2020-8157?

The vulnerability in UniFi Cloud Key firmware <= v1.1.10 for Cloud Key Gen2 and Cloud Key Gen2 Plus enables unrestricted root access via the serial interface (UART).

The Impact of CVE-2020-8157

The vulnerability could potentially lead to unauthorized access and compromise of affected devices, posing a significant security risk.

Technical Details of CVE-2020-8157

This section provides detailed technical information about the CVE.

Vulnerability Description

UniFi Cloud Key firmware <= v1.1.10 for Cloud Key Gen2 and Cloud Key Gen2 Plus contains a flaw that allows unrestricted root access through the UART interface.

Affected Systems and Versions

Affected Products: UniFi Cloud Key Gen2, Cloud Key Gen2 Plus
Vulnerable Version: <= v1.1.10
Fixed Version: v1.1.11

Exploitation Mechanism

The vulnerability can be exploited by attackers to gain unauthorized root access through the UART interface.

Mitigation and Prevention

Protect your systems from CVE-2020-8157 with the following steps:

Immediate Steps to Take

Update affected devices to version v1.1.11, where the vulnerability is fixed.
Restrict physical access to the serial interface to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor for security advisories and updates from the vendor.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Apply patches and firmware updates promptly to address known vulnerabilities and enhance system security.