CVE-2022-21796 Explained : Impact and Mitigation

A memory corruption vulnerability has been identified in the netserver parse_command_list functionality of Reolink RLC-410W v3.0.0.136_20121102. This vulnerability allows an attacker to execute an out-of-bounds write by sending a specially-crafted HTTP request.

Understanding CVE-2022-21796

This section will delve into the details of the CVE-2022-21796 vulnerability.

What is CVE-2022-21796?

The CVE-2022-21796 is a memory corruption vulnerability in Reolink RLC-410W v3.0.0.136_20121102 that can be triggered by a specifically crafted HTTP request.

The Impact of CVE-2022-21796

With a CVSS base score of 9.3, this critical vulnerability can have a high impact on the availability of the affected system.

Technical Details of CVE-2022-21796

Let's explore the technical aspects of CVE-2022-21796 further.

Vulnerability Description

The vulnerability arises in the netserver parse_command_list function of Reolink RLC-410W v3.0.0.136_20121102 due to improper processing of HTTP requests, enabling an out-of-bounds write.

Affected Systems and Versions

Reolink RLC-410W v3.0.0.136_20121102 is confirmed to be affected by this vulnerability.

Exploitation Mechanism

An attacker can exploit CVE-2022-21796 by sending a malicious HTTP request to the target system to trigger the out-of-bounds write.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2022-21796.

Immediate Steps to Take

It is crucial to apply security patches and updates provided by the vendor to address the vulnerability promptly.

Long-Term Security Practices

Implement robust input validation mechanisms and network security measures to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for security updates and patches from Reolink to stay protected against CVE-2022-21796.