CVE-2021-44392 : Vulnerability Insights and Analysis

A denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. This vulnerability can be triggered by a specially-crafted HTTP request, potentially leading to a reboot due to a non-object parameter in the GetImage param.

Understanding CVE-2021-44392

What is CVE-2021-44392?

The CVE-2021-44392 is a high-severity denial of service vulnerability affecting the JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102.

The Impact of CVE-2021-44392

This vulnerability has a CVSS base score of 8.6, indicating a high severity level with a significant impact on availability.

Technical Details of CVE-2021-44392

Vulnerability Description

The vulnerability arises due to improper input validation in the cgiserver.cgi function, allowing for the execution of a reboot via a specially-crafted HTTP request.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: RLC-410W v3.0.0.136_20121102

Exploitation Mechanism

The vulnerability can be exploited by an attacker sending a manipulated HTTP request to the affected server to trigger the reboot.

Mitigation and Prevention

Immediate Steps to Take

Apply patches or updates provided by the vendor promptly.
Implement network security measures to restrict unauthorized access.

Long-Term Security Practices

Regularly update and patch software and systems to address known vulnerabilities.
Conduct security assessments and audits to identify and mitigate potential weaknesses.

Patching and Updates

Ensure the timely application of security patches and updates to mitigate the risk of exploitation.