CVE-2021-45508 : Security Advisory and Response
Learn about CVE-2021-45508 affecting NETGEAR devices, with a critical CVSS score of 9.6. Find information on impacted versions and mitigation steps.
Certain NETGEAR devices are affected by an authentication bypass vulnerability. This impacts various models before specific versions.
Understanding CVE-2021-45508
What is CVE-2021-45508?
Certain NETGEAR devices, including CBR40, CBR750, RBK752, RBR750, RBS750, RBK852, and RBR850, are vulnerable to an authentication bypass issue.
The Impact of CVE-2021-45508
This vulnerability has a CVSS base score of 9.6 (Critical) and can lead to high impacts on confidentiality, integrity, and availability. Attack complexity is low, and no privileges are required for exploitation.
Technical Details of CVE-2021-45508
Vulnerability Description
The vulnerability allows for an authentication bypass on affected NETGEAR devices.
Affected Systems and Versions
- CBR40 before 2.5.0.24
- 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
Exploitation Mechanism
The attack vector is from an adjacent network, with changed scope and no user interaction required.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by NETGEAR for the affected devices.
- Update the firmware of the vulnerable devices to versions that address this issue.
Long-Term Security Practices
- Regularly check for security advisories and updates from NETGEAR.
- Implement strong network segmentation and access control measures.
Patching and Updates
Always prioritize the installation of security patches and firmware updates released by NETGEAR to prevent exploitation of this vulnerability.