CVE-2021-45503 : Security Advisory and Response
Learn about CVE-2021-45503 impacting NETGEAR devices with an authentication bypass vulnerability. Discover affected systems, the severity level, and mitigation steps.
Certain NETGEAR devices are affected by authentication bypass in specific versions. This vulnerability has a CVSS base score of 9.6, categorized as critical.
Understanding CVE-2021-45503
What is CVE-2021-45503?
Certain NETGEAR devices are impacted by an authentication bypass vulnerability present in several models before specific software versions.
The Impact of CVE-2021-45503
The vulnerability has a critical severity level with high impacts on confidentiality, integrity, and availability. An attacker can exploit this issue without requiring privileges.
Technical Details of CVE-2021-45503
Vulnerability Description
The authentication bypass vulnerability affects certain NETGEAR devices, including CBR750, RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 before particular software versions.
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 attack complexity is low, with an adjacent network attack vector. The vulnerability does not require user interaction and has a scope of changed.
Mitigation and Prevention
Immediate Steps to Take
- Update affected devices to the latest patched versions immediately.
- Restrict network access to vulnerable devices.
- Implement strong password policies.
Long-Term Security Practices
- Regularly monitor for security advisories from NETGEAR.
- Conduct security assessments and audits to identify vulnerabilities proactively.
Patching and Updates
Apply security patches provided by NETGEAR promptly to address the authentication bypass vulnerability.