CVE-2021-45569 : Exploit Details and Defense Strategies
CVE-2021-45569: Certain models of NETGEAR devices are vulnerable to command injection by authenticated users. Learn about the impact, affected systems, and mitigation steps.
Certain NETGEAR devices are affected by command injection by an authenticated user. This vulnerability impacts models like RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850.
Understanding CVE-2021-45569
This CVE involves command injection on specified NETGEAR devices.
What is CVE-2021-45569?
Command injection vulnerability on certain NETGEAR devices that allows an authenticated user to execute arbitrary commands.
The Impact of CVE-2021-45569
The vulnerability has a CVSS base score of 8.4 (High severity) with high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2021-45569
This section provides in-depth technical details of the vulnerability.
Vulnerability Description
- Command injection vulnerability by an authenticated user on affected NETGEAR devices.
Affected Systems and Versions
- RBK752 before 3.2.16.6
- RBR750 before 3.2.16.6
- RBS750 before 3.2.16.6
- RBK852 before 3.2.16.6
- RBR850 before 3.2.16.6
- RBS850 before 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
Steps to mitigate and prevent exploitation of CVE-2021-45569.
Immediate Steps to Take
- Update affected devices to version 3.2.16.6 or newer.
- Ensure strong authentication mechanisms are in place.
- Monitor network activity for suspicious behavior.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Implement network segmentation to contain potential attacks.
Patching and Updates
- Check for firmware updates from NETGEAR and apply them promptly to address the vulnerability.