CVE-2021-45578 : Security Advisory and Response
Learn about CVE-2021-45578 affecting NETGEAR devices. This vulnerability allows authenticated users to execute unauthorized commands. Mitigation steps and affected versions provided.
Certain NETGEAR devices are affected by command injection by an authenticated user in multiple models.
Understanding CVE-2021-45578
What is CVE-2021-45578?
NETGEAR devices, including RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 before version 3.2.16.6, are vulnerable to command injection by authenticated users.
The Impact of CVE-2021-45578
The vulnerability has a CVSS base score of 8.4 (High) with significant impacts on confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-45578
Vulnerability Description
- Command injection vulnerability allows authenticated users to execute arbitrary commands on affected devices.
Affected Systems and Versions
- RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 devices before version 3.2.16.6.
Exploitation Mechanism
- Attack complexity: Low
- Attack vector: Adjacent network
- Privileges required: High
- Scope: Changed
- No user interaction required
Mitigation and Prevention
Immediate Steps to Take
- Update affected devices to version 3.2.16.6 or later.
- Monitor network traffic for any suspicious activities.
- Limit user access rights to reduce the impact of potential attacks.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Implement strong authentication mechanisms to prevent unauthorized access.
Patching and Updates
- Apply vendor-provided patches promptly to address the vulnerability.