CVE-2021-45583 : Security Advisory and Response
Learn about CVE-2021-45583 affecting certain NETGEAR devices and how to mitigate the high severity command injection vulnerability. Take immediate steps and implement long-term security practices.
Certain NETGEAR devices are affected by command injection, impacting various models such as RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.
Understanding CVE-2021-45583
What is CVE-2021-45583?
Certain NETGEAR devices are vulnerable to command injection when accessed by an authenticated user.
The Impact of CVE-2021-45583
The vulnerability has a high severity level, with a CVSS base score of 8.4. It can lead to high confidentiality, integrity, and availability impacts on the affected devices.
Technical Details of CVE-2021-45583
Vulnerability Description
Command injection vulnerability in NETGEAR devices enables authenticated users to execute arbitrary commands. Affected models include RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.
Affected Systems and Versions
- RBK752 before 3.2.16.6
- RBR750 before 3.2.16.6
- RBS750 before 3.2.16.6
- RBK852 before 3.2.16.6
- RBR850 before 3.2.16.6
- RBS850 before 3.2.16.6
Exploitation Mechanism
The vulnerability allows authenticated users to input malicious commands through specific parameters, leading to unauthorized actions on the affected NETGEAR devices.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by NETGEAR for the affected devices.
- Monitor for any suspicious activities or unauthorized access.
- Restrict network access to vulnerable devices.
Long-Term Security Practices
- Regularly update firmware and security software on all network devices.
- Implement strong and unique passwords for device access.
- Conduct security audits and penetration testing to identify vulnerabilities.
Patching and Updates
It is crucial to install the latest firmware updates and security patches released by NETGEAR to address the command injection vulnerability in the affected devices.