![]() Use a sufficiently strong and unique password. Serial Offenders: Widespread Flaws in Serial Port ServersĪttempting to log in with blank, default, and common passwords is a widely used attack technique.Ĭhange default passwords as soon as possible and absolutely before deploying the system on an untrusted network such as the internet.Security Flaws in Universal Plug and Play: Unplug, Don't Play.It is possible to identify exposed systems using search engines like Shodan, and it is feasible to scan the entire IPv4 internet, as demonstrated by such research as Passwords can be found in product documentation and compiled lists available on the internet. What Is the Risk?Īttackers can easily obtain default passwords and identify internet-connected target systems. These systems usually do not provide a full operating system interface for user management, and the default passwords are typically identical (shared) among all systems from a vendor or within product lines. Default passwords are intended for initial testing, installation, and configuration operations, and many vendors recommend changing the default password before deploying the system in a production environment. What Are Default Passwords?įactory default software configurations for embedded systems, devices, and appliances often include simple, publicly documented passwords. ![]() It is imperative to change default manufacturer passwords and restrict network access to critical and important systems. Attackers can easily identify and access internet-connected systems that use shared default passwords. ![]()
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