CVE-2021-45568 : Security Advisory and Response
Learn about CVE-2021-45568, a high-severity command injection vulnerability impacting NETGEAR devices such as RBK752, RBR750, and RBS750 before 3.2.16.6.
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-2021-45568
This CVE involves command injection vulnerability affecting specific NETGEAR devices.
What is CVE-2021-45568?
CVE-2021-45568 is a vulnerability that allows an authenticated user to inject commands into NETGEAR devices. The affected models include RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 with firmware versions prior to 3.2.16.6.
The Impact of CVE-2021-45568
This vulnerability has a CVSSv3.1 base score of 8.4 out of 10, indicating a high-severity issue with significant impacts:
- Attack Vector: Adjacent Network
- Attack Complexity: Low
- Privileges Required: High
- User Interaction: None
- Confidentiality, Integrity, and Availability Impact: High
- Scope: Changed
Technical Details of CVE-2021-45568
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability allows authenticated users to inject commands into the affected NETGEAR devices, potentially leading to unauthorized access and control.
Affected Systems and Versions
- RBK752, RBR750, RBS750, RBK852, RBR850, RBS850
- Versions before 3.2.16.6
Exploitation Mechanism
By exploiting this vulnerability, attackers can execute arbitrary commands on the affected devices, compromising their integrity, confidentiality, and availability.
Mitigation and Prevention
It's crucial to take immediate and long-term actions to mitigate the risks posed by CVE-2021-45568.
Immediate Steps to Take
- Update the firmware of the affected devices to version 3.2.16.6 or higher.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update firmware and apply security patches as soon as they are available.
- Implement strong authentication mechanisms and limit user privileges.
Patching and Updates
NETGEAR has released firmware updates to address this vulnerability. Ensure all affected devices are promptly patched and kept up to date.