Skype -> upnp AddPortMapping port 4444?!

[raffi at flossyourmind.com (Raffi Jamgotchian)]

It does use upnp by default. They use their own implementation of it

----
Raffi

On Apr 2, 2009, at 3:16 AM, Michel Lundell <michel at moose.se> wrote:

> Hi l33t folks!
>
> Does skype add a external port using upnp?
> (and to the port 4444!!!?)
> The port number seemes familiar ,o), also the AddPortMapping ...
>
> This is a incident right? or does skype do this on the windows  
> platform?
> Cant detect this behaviour on a linux box...
>
> Scanned the router, but nmap did not detect any open port, so it may
> failed or was closed when I performed the scan... maybe it failed?
>
> I have not permission to access the router config yet....
>
> /M
>
> #(26 - 8149) [2009-03-30 07:38:46] [local/100021] [snort/1:100021]   
> to router traffic alert
> IPv4: 192.168.1.2 -> 192.168.0.254
>      hlen=5 TOS=0 dlen=903 ID=16342 flags=0 offset=0 TTL=128  
> chksum=13386
> TCP:  port=61432 -> dport: 4444  flags=***AP*** seq=1705820595
>      ack=1383450833 off=5 res=0 win=64240 urp=0 chksum=15790
> Payload: POST /wipconn HTTP/1.0<DIV class="nonascii">[2 non-ASCII  
> characters]</DIV>Host: 192.168.0.254:4444<DIV class="nonascii">[2  
> non-ASCII characters]</DIV>Content-Type: text/xml;  
> charset="utf-8"<DIV class="nonascii">[2 non-ASCII characters]</ 
> DIV>SOAPAction: "urn:schemas-upnp-org:service:WANIPConnection: 
> 1#AddPortMapping"<DIV class="nonascii">[2 non-ASCII characters]</ 
> DIV>Connection: close<DIV class="nonascii">[2 non-ASCII characters]</ 
> DIV>Content-Length: 653<DIV class="nonascii">[4 non-ASCII  
> characters]</DIV><?xml version="1.0" encoding="utf-8"?><DIV  
> class="nonascii">[2 non-ASCII characters]</DIV><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/ 
> " s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";><DIV  
> class="nonascii">[2 non-ASCII characters]</ 
> DIV><s:Body><u:AddPortMapping xmlns:u="urn:schemas-upnp- 
> org:service:WANIPConnection:1"><DIV class="nonascii">[2 non-ASCII  
> characters]</DIV><NewRemoteHost></NewRemoteHost><DIV  
> class="nonascii">[2 non-ASCII characters]</ 
> DIV><NewExternalPort>6895</NewExternalPort><DIV class="nonascii">[2  
> non-ASCII characters]</DIV><NewProtocol>TCP</NewProtocol><DIV  
> class="nonascii">[2 non-ASCII characters]</ 
> DIV><NewInternalPort>6895</NewInternalPort><DIV class="nonascii">[2  
> non-ASCII characters]</DIV><NewInternalClient>192.168.1.2</ 
> NewInternalClient><DIV class="nonascii">[2 non-ASCII characters]</ 
> DIV><NewEnabled>1</NewEnabled><DIV class="nonascii">[2 non-ASCII  
> characters]</DIV><NewPortMappingDescription>Skype TCP at  
> 192.168.1.2:6895 (819)</NewPortMappingDescription><DIV  
> class="nonascii">[2 non-ASCII characters]</DIV><NewLeaseDuration>0</ 
> NewLeaseDuration><DIV class="nonascii">[2 non-ASCII characters]</ 
> DIV></u:AddPortMapping></s:Body></s:Envelope><br><br>
>
>
>
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