Key Takeaways
Ensure your router is protected from security issues by implementing secure configurations. This entails disabling remote access, regularly updating firmware, modifying default login credentials, and securing Wi-Fi access.
To enhance your router's security and have more customization options, it is advisable to disable UPnP to prevent potential vulnerabilities and remote configuration by attackers. Instead of relying on UPnP, manually forward ports for specific software. Additionally, you may want to consider installing third-party firmwares like DD-WRT or pfSense.
Ensure your router serves as the central hub for all devices on your home network, shielding them against potential Internet-based attacks. Discover effective measures to enhance your network security in this article, presented by Incogni, as part of Cybersecurity Awareness Week.
Disable Remote Access
A web interface is provided by routers, which enables configuration through a browser. The router operates a web server and grants access to this web page while connected to the local network of the router.
To enhance security, it is recommended to disable the remote access feature on your router. This can be done by accessing your router's web interface and locating the "Remote Access," "Remote Administration," or "Remote Management" option. Although most routers have this feature disabled by default, it is advisable to verify its status.
Update the Firmware
Similar to our operating systems, web browsers, and other software we utilize, router software is not flawless. The firmware, which is essentially the software operating on the router, may contain security vulnerabilities. While router manufacturers may release firmware updates to address these security issues, they often discontinue support for older router models and focus on newer ones.
Most modern routers offer an auto-update feature, similar to Windows and web browsers. However, if you have a slightly older router, you may need to visit your router manufacturer's website to manually download and install the firmware update through the router's web interface. It is important to verify that your router has the latest available firmware installed.
Change Default Login Credentials
Default login credentials for routers are often quite obvious, such as the frequently-used password "admin". If an individual manages to gain access to your router's web interface due to a vulnerability or by connecting to your Wi-Fi network, they can easily log in and manipulate the router's settings.
To prevent this, it is recommended to modify the router's password to a non-default one that would be difficult for an attacker to guess. In fact, certain routers even offer the option to change the username used for logging into the router.
Lock Down Wi-Fi Access
Running an unsecured Wi-Fi network can have serious consequences. Unauthorized individuals who gain access to your network could potentially tamper with your router and engage in malicious activities such as monitoring your file shares or using your connection to download copyrighted content, which could lead to legal trouble.
To avoid these risks, it is crucial to ensure the security of your router's Wi-Fi. This can be achieved through a straightforward process: Enable either WPA2 or WPA3 encryption and choose a robust passphrase that is not easily guessed. It is important to refrain from using weaker security measures such as WEP encryption or selecting obvious passphrases like "password".
Disable UPnP
UPnP vulnerabilities have been discovered in consumer routers, affecting a large number of devices. These flaws enable remote configuration of routers through UPnP requests from the Internet, potentially leaving users vulnerable to attacks. Additionally, the use of UPnP by Flash applets in web browsers opens ports and increases the susceptibility of computers to exploitation. UPnP has been found to be significantly insecure due to various factors.
To prevent issues associated with UPnP, it is recommended to disable UPnP on your router using the web interface. If you utilize software that requires port forwarding, such as a BitTorrent client, game server, or communication program, you will need to manually forward the necessary ports on your router instead of relying on UPnP.
Log Out of the Router's Web Interface When You're Done Configuring It
Some routers have been identified to have Cross Site Scripting (XSS) vulnerabilities. Exploiting this flaw would enable a malicious webpage to manipulate settings while you are logged in. If your router still retains the default username and password, it would be effortless for the malicious webpage to gain unauthorized access. Even after changing your router's password, there remains a theoretical possibility for a website to exploit your active session and make unauthorized modifications to your router's settings.
To avoid this, simply log out of your router after completing the configuration process. If logging out is not possible, consider clearing your browser cookies. While this may not be a cause for extreme concern, logging out of your router once done using it is a convenient and straightforward task.
Change the Router's Local IP Address
To enhance security, consider changing the local IP address of your router. By modifying the default address such as 192.168.0.1 to 192.168.0.150, you can reduce the risk of potential vulnerabilities. However, keep in mind that this measure will not offer complete protection against local attackers. If individuals are on your network or there is malicious software running on your PC, they can still discover your router's IP address and establish a connection.
Install Third-Party Firmwares
For enhanced security, consider installing third-party firmware like DD-WRT or OpenWRT. These alternative firmwares do not contain any hidden vulnerabilities inserted by the router's manufacturer.
For those inclined, constructing your own router using an old or new computer, along with a high-quality network interface card and software like pfSense or OPNsense, is also an option worth exploring.
Over the past decade, consumer routers have seen significant advancements. These advancements include features such as automatic firmware updates, mandatory password changes for default settings, enhanced functionalities, and improved security protocols that outshine their predecessors. However, despite these enhancements, routers and modem-router combo units remain highly vulnerable to malicious attacks, especially if security measures are not properly implemented. To ensure the utmost security for your network, take just 15 minutes to evaluate and optimize your network's defenses.