CVE-2021-38518 : Security Advisory and Response
Learn about CVE-2021-38518 affecting certain NETGEAR devices through command injection, its impact, technical details, and mitigation steps to secure the systems.
This article provides an overview of CVE-2021-38518, a vulnerability affecting certain NETGEAR devices through command injection by an authenticated user. Learn about the impact, technical details, and mitigation steps to secure the affected systems.
Understanding CVE-2021-38518
CVE-2021-38518 is a security vulnerability that allows an authenticated user to execute commands via injection on specific NETGEAR devices. The affected products include RAX200, RAX75, RAX80, RBK852, RBR850, and RBS850.
What is CVE-2021-38518?
Certain NETGEAR devices are susceptible to command injection by authenticated users. This vulnerability can be exploited on devices running specific firmware versions.
The Impact of CVE-2021-38518
With a CVSS base score of 8.4, CVE-2021-38518 poses a high impact, affecting confidentiality, integrity, and availability. It requires high privileges and can lead to unauthorized command execution.
Technical Details of CVE-2021-38518
CVE-2021-38518 has an attack complexity of LOW and occurs via an ADJACENT_NETWORK attack vector. The exploitation can result in significant availability, confidentiality, and integrity impacts.
Vulnerability Description
The vulnerability allows authenticated users to inject and execute commands on vulnerable NETGEAR devices. The issue lies in the handling of user commands.
Affected Systems and Versions
NETGEAR devices such as RAX200, RAX75, RAX80, RBK852, RBR850, and RBS850 are vulnerable to CVE-2021-38518 before specific firmware versions.
Exploitation Mechanism
Attackers with authenticated access can exploit the vulnerability by injecting malicious commands, potentially leading to unauthorized actions on the affected devices.
Mitigation and Prevention
To protect the affected systems from CVE-2021-38518, immediate steps and long-term security practices should be implemented.
Immediate Steps to Take
It is crucial to update the firmware of the vulnerable NETGEAR devices to versions that contain security patches addressing the command injection vulnerability.
Long-Term Security Practices
Ensure regular cybersecurity audits and updates for all network-connected devices to prevent similar vulnerabilities from being exploited in the future.
Patching and Updates
Stay informed about security advisories from NETGEAR and promptly apply patches and updates to mitigate the risks associated with CVE-2021-38518.