DETECTION OVERVIEW
Risk Factors
Routers, WiFi extenders, and Internet of Things (IoT) devices with Realtek software development kit (SDK) firmware are sometimes exposed to the internet. This vulnerability can be exploited with basic command-line tools. An unauthenticated attacker can gain control of an IoT device, such as a router, to launch further attacks on a network.
Kill Chain
Risk Score
83
Realtek is a semiconductor company that produces software development kit (SDK) firmware to enable wireless connections for various devices ranging from routers to IP cameras. Realtek SDK includes a command injection vulnerability in the diagnostic tool, MP Daemon. MP Daemon acts as a UDP server and listens for incoming traffic to the IoT device. An attacker creates a specially designed UDP datagram, where the first three characters (orf) precede a command (such as pwd). The MP Daemon tool does not validate the request and runs the command on the device.
Quarantine the device while checking for indicators of compromise
Run regular software updates on IoT devices with Realtek SDK firmware