CVE-2021-45599 : Exploit Details and Defense Strategies
Learn about CVE-2021-45599 affecting certain NETGEAR devices through command injection. Understand the impact, affected systems, and mitigation steps to secure your systems.
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, and RBS850 before 3.2.17.12.
Understanding CVE-2021-45599
What is CVE-2021-45599?
CVE-2021-45599 describes a vulnerability in certain NETGEAR devices that allows an authenticated user to execute commands through command injection.
The Impact of CVE-2021-45599
The vulnerability has a CVSSv3.1 base score of 8.4, classified as high severity, with significant impacts on confidentiality, integrity, and availability. An attacker with high privileges can exploit this issue.
Technical Details of CVE-2021-45599
Vulnerability Description
The vulnerability allows authenticated users to perform command injection on affected NETGEAR devices.
Affected Systems and Versions
- CBR40 before 2.5.0.24
- CBR750 before 4.6.3.6
- RBK852 before 3.2.17.12
- RBR850 before 3.2.17.12
- RBS850 before 3.2.17.12
Exploitation Mechanism
The attack complexity is low, requiring no user interaction. The attacker needs high privileges and network access to exploit the vulnerability.
Mitigation and Prevention
Immediate Steps to Take
- Update affected devices to the latest firmware versions provided by NETGEAR.
- Implement strong authentication mechanisms to prevent unauthorized access.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all network devices.
- Conduct security training for users on best practices to prevent social engineering attacks.
Patching and Updates
Apply security patches and updates as soon as they are available to mitigate the risk of exploitation.