CVE-2021-45537 : Vulnerability Insights and Analysis
Learn about CVE-2021-45537 affecting certain NETGEAR devices through command injection by authenticated users. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects multiple specific models as stated.
Understanding CVE-2021-45537
This CVE highlights a severe command injection vulnerability affecting certain NETGEAR devices.
What is CVE-2021-45537?
The vulnerability involves an authenticated user injecting commands into affected NETGEAR devices. The impacted models include RAX200, RAX75, RAX80, RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 with specific versions.
The Impact of CVE-2021-45537
The CVSS score of 8.4 categorizes this vulnerability as high severity due to its significant impact on confidentiality, integrity, and availability. The attack complexity is low, requiring high privileges, and the user interaction is not needed.
Technical Details of CVE-2021-45537
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability allows an authenticated user to execute arbitrary commands on the affected NETGEAR devices, compromising their security.
Affected Systems and Versions
The following devices and versions are impacted:
- RAX200 before 1.0.3.106
- RAX75 before 1.0.3.106
- RAX80 before 1.0.3.106
- 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 is exploited by an authenticated user injecting malicious commands into the affected devices, leading to unauthorized access and potential system compromise.
Mitigation and Prevention
Protecting systems from CVE-2021-45537 is crucial for maintaining security.
Immediate Steps to Take
- Update the firmware of affected devices to the latest patched versions immediately.
- Implement strong, unique passwords for device access to prevent unauthorized logins.
- Monitor network traffic for any unusual behavior.
Long-Term Security Practices
- Regularly update firmware and security patches on all devices connected to the network.
- Conduct periodic security audits and vulnerability assessments.
- Educate users on best practices for maintaining device security.
- Consider implementing network segmentation to limit the impact of potential future vulnerabilities.
Patching and Updates
Ensure timely application of vendor-supplied patches and updates to address known security vulnerabilities.