CVE-2021-44413 : Security Advisory and Response

A denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. Attackers can exploit this vulnerability through specially-crafted HTTP requests to trigger a reboot.

Understanding CVE-2021-44413

What is CVE-2021-44413?

This CVE identifies a denial of service vulnerability in the cgiserver.cgi JSON command parser of reolink RLC-410W v3.0.0.136_20121102.

The Impact of CVE-2021-44413

This vulnerability, with a CVSS base score of 8.6 (High), allows attackers to cause a denial of service by sending a malicious HTTP request that can lead to a system reboot.

Technical Details of CVE-2021-44413

Vulnerability Description

The vulnerability is due to improper input validation in the JSON command parser. An attacker can exploit this by sending a specially-crafted HTTP request.

Affected Systems and Versions

Vendor: N/A
Product: N/A
Version: RLC-410W v3.0.0.136_20121102

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: None
Scope: Changed
Impact: High

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-provided patches or updates.
Implement network security measures to restrict access.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch software and firmware.
Conduct security assessments and penetration testing.

Patching and Updates

It is critical to apply security patches provided by the vendor to address this vulnerability.