The Cybersecurity and Infrastructure Security Agency (CISA) recently released an alert on critical security vulnerabilities in popular virtual private networks (VPNs) and routers. The alert highlights that the vulnerabilities could be exploited by attackers to gain unauthorized access to networks and steal sensitive information.
In this blog, we will delve into the details of the alert, discussing the vulnerabilities, the impact they could have, and how you can protect yourself.
What are the vulnerabilities?
The alert lists four vulnerabilities affecting VPNs and routers:
Arbitrary Code Execution Vulnerability – This vulnerability allows an attacker to execute arbitrary code on the affected system, giving them complete control over it.
Buffer Overflow Vulnerability – This vulnerability occurs when an application tries to write more data to a buffer than it can hold, allowing an attacker to execute arbitrary code or crash the system.
SQL Injection Vulnerability – This vulnerability occurs when an attacker inserts malicious SQL commands into a web form, allowing them to extract sensitive information from the database.
Cross-Site Scripting Vulnerability – This vulnerability occurs when an attacker injects malicious scripts into a web page viewed by other users, allowing them to steal sensitive information or execute arbitrary code.
The alert lists several VPNs and routers that are affected by these vulnerabilities. They include:
What is the impact of these vulnerabilities?
To protect yourself from these vulnerabilities, it is important to update your VPN and router software as soon as possible. The alert provides links to the relevant security advisories and patches for each affected VPN and router. In addition to updating your software, there are several other steps you can take to protect yourself: