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To avoid physical security breaches and un-authorized access from publicly available network ports laying in lobby or reception, companies use port based authentication schemes. Once implemented device needs to authenticate itself with the authenticating server to prove its identity and once proved, gets access to the network. Thus providing authentication mechanism to devices wishing to [...]

Now that we have simulated the production network in the previous post of this series, we can proceed for the real attack. I will explain the password breaking procedure using freely available tool. Read more here about setting up port based authentication in wired VoIP Network. Sipera Viper Lab has released a new tool- XTest [...]