<p>What kind of attack can they reform calling in?</p>
<p>On Aug 6, 2010 1:12 AM, <<a href="mailto:jwexler@mail.usa.com">jwexler@mail.usa.com</a>> wrote:<br type="attribution">> I am setting filters, etc. on variables that attackers can send asterisk<br>> when they call (for example when they initially call into asterisk).<br>
> <br>> So far, I am filtering:<br>> <br>> exten<br>> <br>> CALLERID(name)<br>> <br>> CALLERID(num)<br>> <br>> <br>> <br>> What other fields or variables would an attacker be able to use in the<br>
> packets that they send when placing the call to asterisk?<br>> <br>> <br>> <br>> Further, I am assuming that in the case that an attacker, first, simply<br>> dials in normally and then after reaching voice prompts or other, starts<br>
> his/her attack, then all I need to filter in that case is exten. Anything<br>> else here as well?<br>> <br>> <br>> <br>> Thanks!!<br>> <br></p>