CVE-2021-45506 Explained : Impact and Mitigation
Critical CVE-2021-45506 affects NETGEAR devices allowing authentication bypass. Learn about the impact, affected systems, exploitation, and mitigation steps.
Certain NETGEAR devices are affected by authentication bypass leading to a critical vulnerability.
Understanding CVE-2021-45506
What is CVE-2021-45506?
CVE-2021-45506 is an authentication bypass vulnerability impacting certain NETGEAR devices including CBR750, RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.
The Impact of CVE-2021-45506
The vulnerability has a CVSS base score of 9.6, indicating a critical severity level. It allows unauthorized attackers to bypass authentication, potentially leading to high confidentiality, integrity, and availability impacts.
Technical Details of CVE-2021-45506
Vulnerability Description
The vulnerability allows attackers to bypass authentication on affected NETGEAR devices.
Affected Systems and Versions
- CBR750 before 4.6.3.6
- RBK752 before 3.2.17.12
- RBR750 before 3.2.17.12
- RBS750 before 3.2.17.12
- RBK852 before 3.2.17.12
- RBR850 before 3.2.17.12
- RBS850 before 3.2.17.12
Exploitation Mechanism
The issue can be exploited by adjacent network attackers with no user interaction required, leading to a change in system scope.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade affected devices to the latest firmware versions
- Ensure strong network segmentation and access controls
- Monitor for any unauthorized access attempts
Long-Term Security Practices
- Regularly update and patch all network-connected devices
- Conduct security assessments and penetration testing
Patching and Updates
Apply security patches provided by NETGEAR to address this vulnerability.