Sunday, December 02, 2007

Cisco VoIP bug

A bug involving 7900 Series IP phones from Cisco creates a means for hackers to eavesdrop on calls. The flaw stems from security shortcomings in the Extension Mobility feature of the phones, which allows users to configure a Cisco IP phone as their own. The feature is disabled by support, which is just as well because when enabled the feature fails to encrypt signalling communications between a device and an internal web server. This, in turn, creates a means for miscreants to sniff out authentication credentials. These credentials might subsequently be misused to cut off users or eavesdrop on streaming media connections associated with calls.

Read the article HERE.

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