CVE-2021-44383 : Security Advisory and Response
Learn about CVE-2021-44383, a high-severity denial of service vulnerability in Reolink RLC-410W v3.0.0.136_20121102 due to improper input validation. Understand the impact, technical details, and mitigation steps.
A denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of Reolink RLC-410W v3.0.0.136_20121102. An attacker can exploit this vulnerability by sending a specially-crafted HTTP request that can lead to a reboot.
Understanding CVE-2021-44383
What is CVE-2021-44383?
The CVE-2021-44383 is a denial of service vulnerability found in Reolink RLC-410W v3.0.0.136_20121102 due to improper input validation in the cgiserver.cgi JSON command parser.
The Impact of CVE-2021-44383
This vulnerability has a CVSS V3.0 base score of 8.6 (High) and can cause a denial of service by allowing an attacker to trigger a reboot through a specially-crafted HTTP request.
Technical Details of CVE-2021-44383
Vulnerability Description
The vulnerability lies in the cgiserver.cgi JSON command parser of Reolink RLC-410W v3.0.0.136_20121102, where a specially-crafted HTTP request can result in a system reboot.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: RLC-410W v3.0.0.136_20121102
Exploitation Mechanism
The attacker can exploit this vulnerability by sending an HTTP request with specific parameters to trigger the reboot.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor patches or updates if available to address the vulnerability.
- Implement network controls to limit access to the affected system.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security assessments to identify and mitigate vulnerabilities.
Patching and Updates
Keep systems up to date with the latest security patches provided by Reolink.