CVE-2021-44417 : 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.

Understanding CVE-2021-44417

What is CVE-2021-44417?

This CVE involves a denial of service vulnerability in the JSON command parser of reolink RLC-410W v3.0.0.136_20121102, where a specific HTTP request can cause the system to reboot.

The Impact of CVE-2021-44417

The vulnerability has a CVSS base score of 8.6, classifying it as a high severity issue. It can result in a denial of service by causing a reboot through a malicious HTTP request.

Technical Details of CVE-2021-44417

Vulnerability Description

The vulnerability exists in the cgiserver.cgi JSON command parser of the affected device, potentially allowing an attacker to reboot the system through a crafted HTTP request.

Affected Systems and Versions

Affected Systems: reolink RLC-410W v3.0.0.136_20121102
Affected Versions: All versions prior to the patch

Exploitation Mechanism

The vulnerability can be exploited by sending a carefully crafted HTTP request to the JSON command parser, triggering the system reboot.

Mitigation and Prevention

Immediate Steps to Take

Apply the official patch provided by the vendor as soon as possible.
Ensure network security measures are in place to prevent unauthorized access.

Long-Term Security Practices

Regularly update and patch all software and firmware to mitigate potential vulnerabilities.
Implement network segmentation and access controls to limit exposure to threats.

Patching and Updates

To address this vulnerability, users should apply the latest security patch provided by the vendor.