CVE-2021-44371 Explained : Impact and Mitigation
Learn about CVE-2021-44371, a high-severity denial of service vulnerability in Reolink RLC-410W v3.0.0.136_20121102, allowing a specially-crafted HTTP request to trigger a reboot. Find mitigation steps and patching recommendations.
A denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of Reolink RLC-410W v3.0.0.136_20121102, allowing a specially-crafted HTTP request to cause a reboot.
Understanding CVE-2021-44371
What is CVE-2021-44371?
The CVE-2021-44371 vulnerability is a denial of service issue in the cgiserver.cgi JSON command parser of Reolink RLC-410W v3.0.0.136_20121102, enabling a malicious HTTP request to trigger a reboot.
The Impact of CVE-2021-44371
This vulnerability has a CVSS base score of 8.6, indicating a high impact with potential for a denial of service attack.
Technical Details of CVE-2021-44371
Vulnerability Description
- The vulnerability arises from improper input validation in the cgiserver.cgi JSON command parser.
Affected Systems and Versions
- Product: Reolink RLC-410W v3.0.0.136_20121102
- Versions: All
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- Availability Impact: High
Mitigation and Prevention
Immediate Steps to Take
- Restrict network access to vulnerable devices
- Deploy network intrusion detection/prevention systems
Long-Term Security Practices
- Regularly update and patch the affected devices
- Conduct security assessments and audits periodically
Patching and Updates
- Check for security updates from the vendor and apply them promptly