Full title: Polycom HDX Telnet Authorization Bypass Vulnerability 
Category: remote exploits
Platform: hardware
The Polycom HDX is a series of telecommunication and video devices. The telnet component of Polycom HDX video endpoint devices is vulnerable to an authorization bypass when multiple simultaneous connections are repeatedly made to the service, allowing remote network attackers to gain full access to a Polycom command prompt without authentication. Versions prior to 3.0.4 also contain OS command injection in the ping command which can be used to escape the telnet prompt and execute arbitrary commands as root. Full Metasploit module included.

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