CVE-2021-44404 : Exploit Details and Defense Strategies
Learn about CVE-2021-44404, a denial of service vulnerability in the cgiserver.cgi JSON parser of Reolink RLC-410W v3.0.0.136_20121102 that allows attackers to trigger reboots via HTTP requests. Find mitigation steps and preventive measures here.
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 through a specially crafted HTTP request.
Understanding CVE-2021-44404
This CVE involves a denial of service vulnerability in a specific version of a camera system that can be exploited through HTTP requests.
What is CVE-2021-44404?
The vulnerability in the JSON command parser functionality of Reolink RLC-410W v3.0.0.136_20121102 can be abused by sending a malicious HTTP request, resulting in a reboot triggered by the attacker.
The Impact of CVE-2021-44404
The vulnerability has a CVSS base score of 8.6 (High), with a significant impact on availability. It requires no user interaction and can be exploited over a network.
Technical Details of CVE-2021-44404
This section covers technical aspects of the vulnerability.
Vulnerability Description
A denial of service flaw in the cgiserver.cgi JSON command parser of Reolink RLC-410W v3.0.0.136_20121102 allows an attacker to cause a reboot via a specifically crafted HTTP request.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: v3.0.0.136_20121102 (affected)
Exploitation Mechanism
The vulnerability can be exploited by sending a specially crafted HTTP request to the affected system.
Mitigation and Prevention
Protecting systems against CVE-2021-44404 is crucial to prevent potential disruptions and unauthorized access.
Immediate Steps to Take
- Disable remote access if not essential
- Implement network segmentation to minimize exposure
- Monitor incoming HTTP requests for suspicious activity
Long-Term Security Practices
- Regularly update firmware to patch known vulnerabilities
- Conduct security assessments to identify and mitigate risks
- Train personnel on recognizing and responding to security threats
Patching and Updates
Ensure that the affected system is updated with the latest patches and security fixes to address the vulnerability.