CVE-2021-44418 : Security Advisory and Response
Learn about CVE-2021-44418, a high-severity denial of service vulnerability in Reolink RLC-410W v3.0.0.136_20121102. Find out its impact, affected systems, exploitation, 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, allowing an attacker to trigger a reboot via a specially-crafted HTTP request.
Understanding CVE-2021-44418
What is CVE-2021-44418?
The CVE-2021-44418 vulnerability is a denial of service issue in Reolink RLC-410W v3.0.0.136_20121102 that can be exploited by sending a malicious HTTP request.
The Impact of CVE-2021-44418
This vulnerability has a high base score of 8.6, indicating a significant impact with the potential for a denial of service condition.
Technical Details of CVE-2021-44418
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 system reboot.
Affected Systems and Versions
- Vendor: Reolink
- Product: RLC-410W
- Version: v3.0.0.136_20121102
Exploitation Mechanism
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-supplied patches immediately
- Monitor network traffic for signs of exploitation
Long-Term Security Practices
- Regularly update and patch all software components
- Implement network segmentation and access controls
Patching and Updates
Patch the affected Reolink RLC-410W v3.0.0.136_20121102 version to address the vulnerability.