CVE-2021-45579 : Exploit Details and Defense Strategies
Learn about CVE-2021-45579 affecting certain NETGEAR devices through command injection, its impact, affected systems, exploitation details, and mitigation steps.
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects multiple models before version 3.2.16.6.
Understanding CVE-2021-45579
This CVE pertains to command injection vulnerability in certain NETGEAR devices which could be exploited by authenticated users.
What is CVE-2021-45579?
Command injection vulnerability in NETGEAR devices allows authenticated users to execute arbitrary commands. Affected models include RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 before 3.2.16.6.
The Impact of CVE-2021-45579
This vulnerability has a CVSSv3.1 base score of 8.4, categorizing it as a high severity issue with significant confidentiality, integrity, and availability impacts.
Technical Details of CVE-2021-45579
NETGEAR devices are susceptible to command injection by authenticated users.
Vulnerability Description
The vulnerability allows authenticated users to execute arbitrary commands on affected devices, compromising their security.
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 can be exploited by authenticated users to inject and execute unauthorized commands on the vulnerable NETGEAR devices.
Mitigation and Prevention
Immediate actions and long-term security practices can help mitigate the impact of CVE-2021-45579.
Immediate Steps to Take
- Update affected devices to version 3.2.16.6 or later.
- Restrict user privileges to minimize the risk of exploitation.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Conduct security training for users to recognize and report suspicious activities.
- Implement defense-in-depth strategies to prevent such vulnerabilities.
Patching and Updates
Ensure timely installation of patches and updates provided by NETGEAR to address the command injection vulnerability.