CVE-2021-37376 Explained : Impact and Mitigation

A Cross Site Scripting (XSS) vulnerability in Teradek Bond, Bond 2, and Bond Pro firmware versions 7.3.x and earlier has been identified, allowing remote attackers to execute arbitrary code through the Friendly Name field in System Information Settings.

Understanding CVE-2021-37376

This section will delve into the specifics of the CVE-2021-37376 vulnerability.

What is CVE-2021-37376?

The CVE-2021-37376 CVE pertains to a Cross Site Scripting (XSS) vulnerability in Teradek Bond, Bond 2, and Bond Pro firmware versions 7.3.x and below. It enables malicious actors to execute arbitrary code by leveraging the Friendly Name field in System Information Settings.

The Impact of CVE-2021-37376

The impact of this vulnerability is significant as it allows remote attackers to run arbitrary code, potentially leading to unauthorized access and control over affected systems.

Technical Details of CVE-2021-37376

In this section, we will discuss the technical aspects of CVE-2021-37376 vulnerability.

Vulnerability Description

The vulnerability arises from improper validation of user-supplied inputs, particularly the Friendly Name field, which can be exploited by attackers to inject and execute malicious scripts.

Affected Systems and Versions

The CVE-2021-37376 vulnerability affects Teradek Bond, Bond 2, and Bond Pro firmware versions 7.3.x and earlier. These versions are susceptible to the XSS exploit through the Friendly Name field in System Information Settings.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by crafting malicious input in the Friendly Name field, tricking the system into executing the injected scripts, thereby gaining unauthorized control over the system.

Mitigation and Prevention

This section will outline measures to mitigate and prevent exploitation of CVE-2021-37376.

Immediate Steps to Take

As the affected products have reached the End of Life status with no further firmware updates, users are advised to implement strict access controls, disable unnecessary services, and monitor for any suspicious activities on the network.

Long-Term Security Practices

For long-term security, organizations should regularly update and replace end-of-life products, conduct security assessments, and educate users on cybersecurity best practices to prevent such vulnerabilities.

Patching and Updates

Although no firmware updates are available to address this particular issue, it is crucial to stay informed about alternative security measures and consider upgrading to newer, supported versions to enhance system security.