CVE-2021-45550 : What You Need to Know
Learn about CVE-2021-45550 affecting NETGEAR routers, allowing authenticated user command injection. Understand the impact, affected devices, exploitation risk, and mitigation steps.
Certain NETGEAR devices are affected by command injection by an authenticated user. This CVE impacts various router models.
Understanding CVE-2021-45550
What is CVE-2021-45550?
CVE-2021-45550 is a vulnerability affecting specific NETGEAR routers that allows an authenticated user to execute commands via injection.
The Impact of CVE-2021-45550
The vulnerability has a CVSSv3 base score of 6.6, with high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2021-45550
Vulnerability Description
- Command injection vulnerability in certain NETGEAR devices
Affected Systems and Versions
- D3600, D6000, D6100, D6220, D6400, D7800, D8500, DGN2200Bv4, DGN2200v4, R6250, R6300v2, R6400, R6400v2, R6700, R6700v3, R6900, R6900P, R7000, R7000P, R7100LG, R7300, R7900, R7900P, R8000, R8000P, R8300, R8500, WNDR3400v3, WNR3500Lv2, and XR500
Exploitation Mechanism
- Authenticated user injects commands leading to unauthorized operations
Mitigation and Prevention
Immediate Steps to Take
- Update the firmware to the latest patched version
- Restrict network access to trusted users only
Long-Term Security Practices
- Regularly monitor for unauthorized access or modifications
- Implement strong password policies and multi-factor authentication
Patching and Updates
- Refer to NETGEAR's security advisory for specific patch details