CVE-2021-45628 : Security Advisory and Response
Learn about CVE-2021-45628, a critical vulnerability in certain NETGEAR devices allowing unauthenticated attackers to execute arbitrary commands. Find mitigation steps and affected device versions here.
Certain NETGEAR devices are affected by a critical command injection vulnerability that can be exploited by an unauthenticated attacker. This CVE affects various NETGEAR models before specific firmware versions.
Understanding CVE-2021-45628
This CVE involves a critical vulnerability that allows unauthenticated attackers to execute arbitrary commands on vulnerable NETGEAR devices.
What is CVE-2021-45628?
The CVE-2021-45628 vulnerability pertains to command injection in certain NETGEAR devices, enabling attackers to run commands without authentication.
The Impact of CVE-2021-45628
The severity of this vulnerability is rated as Critical with a CVSS base score of 9.6. The impact includes high confidentiality, integrity, and availability risks, with no privileges required for exploitation.
Technical Details of CVE-2021-45628
This section provides a detailed overview of the technical aspects of CVE-2021-45628.
Vulnerability Description
The vulnerability allows unauthenticated attackers to perform command injections, leading to the execution of arbitrary commands on affected NETGEAR devices.
Affected Systems and Versions
The following NETGEAR models are impacted by this vulnerability:
- CBR40 before 2.5.0.24
- CBR750 before 3.2.18.2
- RBK752 before 3.2.17.12
- RBR750, RBS750, RBK852, RBR850, RBS850 before 3.2.17.12
- RBS40V before 2.6.2.4
- RBW30 before 2.6.2.2
Exploitation Mechanism
Attackers can exploit this vulnerability by sending crafted commands to the affected devices, leveraging the command injection flaw to execute unauthorized commands.
Mitigation and Prevention
Protecting your systems from CVE-2021-45628 is crucial. Take the following immediate steps and implement long-term security practices:
Immediate Steps to Take
- Update affected devices to the latest firmware versions that address this vulnerability.
- Restrict network access to vulnerable devices.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly check for security updates and patches from NETGEAR.
- Implement network segmentation to isolate vulnerable devices.
- Conduct regular security audits and assessments.
Patching and Updates
Ensure timely installation of firmware updates released by NETGEAR to mitigate the CVE-2021-45628 vulnerability.