CVE-2021-45559 : Exploit Details and Defense Strategies
Learn about CVE-2021-45559 affecting specific NETGEAR devices allowing command injection. Find out the impact, affected systems, mitigation steps, and prevention measures.
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects 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, and RBS850 before 3.2.16.6.
Understanding CVE-2021-45559
This CVE involves command injection vulnerability affecting certain NETGEAR devices.
What is CVE-2021-45559?
CVE-2021-45559 is a vulnerability that allows an authenticated user to execute arbitrary commands on affected NETGEAR devices.
The Impact of CVE-2021-45559
The vulnerability has a CVSS base score of 8.4 (High severity) with a significant impact on confidentiality, integrity, and availability of the devices.
Technical Details of CVE-2021-45559
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows an authenticated user to inject and execute commands on affected NETGEAR devices, leading to a compromise of the device's security.
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
The vulnerability can be exploited by an authenticated user to run arbitrary commands on the affected devices, potentially leading to unauthorized access or control.
Mitigation and Prevention
Protect your systems from CVE-2021-45559 through the following measures.
Immediate Steps to Take
- Apply security patches provided by NETGEAR promptly.
- Restrict network access to the devices to trusted users only.
- Monitor device activity for any suspicious behavior.
Long-Term Security Practices
- Implement strong authentication mechanisms for device access.
- Regularly update firmware and security configurations.
- Conduct security assessments and audits periodically.
Patching and Updates
Ensure that affected NETGEAR devices are updated with the latest security patches to mitigate the CVE-2021-45559 vulnerability.