Symptoms: 
A vulnerability in the certificate validation code of WebEx Meeting could allow an unauthenticated, remote attacker to remote attacker to 
execute a man-in-the-middle attack.

The vulnerability is due to incomplete certificate validation of secondary WebEx data channels. An attacker could exploit this vulnerability 
by
using a proxy to man-in-the-middle (MITM) the secondary data channel.

Conditions: 
Device configured with default configuration.