CVE-2021-44402 : 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 can lead to a reboot when a specially-crafted HTTP request is sent. The vulnerability affects the availability of the system.

Understanding CVE-2021-44402

What is CVE-2021-44402?

The CVE-2021-44402 is a denial of service vulnerability in the command parser functionality of reolink RLC-410W.

The Impact of CVE-2021-44402

This vulnerability has a high base score of 8.6, indicating a severe impact on the availability of the affected system. It does not impact confidentiality or integrity, and user interaction is not required.

Technical Details of CVE-2021-44402

Vulnerability Description

The vulnerability exists in the cgiserver.cgi JSON command parser of reolink RLC-410W v3.0.0.136_20121102, triggered by a specially-crafted HTTP request, leading to a reboot.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Version: v3.0.0.136_20121102

Exploitation Mechanism

An attacker can exploit this vulnerability by sending a specially-crafted HTTP request to the vulnerable cgiserver.cgi JSON command parser.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Restrict network access to vulnerable devices.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch all software and firmware in your environment.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing.

Patching and Updates

Follow vendor recommendations for applying patches to mitigate the vulnerability effectively.