CVE-2021-45561 Explained : Impact and Mitigation
Learn about CVE-2021-45561 affecting certain NETGEAR devices, allowing authenticated users to execute malicious commands. Find mitigation steps and patching details.
Certain NETGEAR devices are affected by command injection by an authenticated user. This impacts 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, and RBS850 before 3.2.16.6.
Understanding CVE-2021-45561
What is CVE-2021-45561?
Command injection vulnerability in specific NETGEAR devices allows an authenticated user to execute arbitrary commands.
The Impact of CVE-2021-45561
The vulnerability has a CVSS base score of 8.4, indicating a high severity issue with impacts on confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-45561
Vulnerability Description
NETGEAR devices are prone to command injection, enabling authenticated users to run unauthorized commands.
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
An authenticated user can exploit this vulnerability to inject and execute malicious commands on the affected NETGEAR devices.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest firmware updates provided by NETGEAR to address this vulnerability.
- Regularly monitor and restrict user access to vulnerable devices.
Long-Term Security Practices
- Implement strong password policies for device access.
- Conduct regular security audits and penetration testing on network devices.
Patching and Updates
Ensure timely installation of security patches and firmware updates from NETGEAR to mitigate the risk of command injection.