Serial threat on the internet
Source: H Security - Posted by Anthony Pell   
Latest News Security expert HD Moore warns of the existence of unprotected terminal servers on the internet. The researcher says that he found over 100,000 such systems during his analyses, and that more than 13,000 provided administrative access without requesting a password. Terminal servers are essentially a kind of serial interface that extends into the internet. By accessing a specific TCP port, users can remotely "talk" to the serial port of the device that is connected to it. Often, these devices are control systems or provide maintenance access. HD Moore said that he used SNMP queries to identify 114,000 terminal servers by Digi and Lantronix alone, and that 95,000 were exposed to the internet through mobile connections such as GPRS or 3G.

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