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Re: DoS against AVM Fritz!Box 7050 (and others)



A new FW version with the fix is released:

ftp://ftp.avm.de/fritz.box/fritzbox.fon_wlan_7050/firmware/

Matthias

collin@xxxxxxxxxxxxxxx wrote:
> Denial of Service against AVM Fritz!Box 7050 (and others)
> 
> Discovered by: Matthias Wenzel
> Advisory: http://mazzoo.de/blog/2007/01/18#FritzBox_DoS
> 
> Manufacturer: AVM (www.avm.de)
> Product: Fritz!Box 750 (and others)
> 
> Vendor was notified 6 month ago (see blog entry by Matthias)
> 
> Sending a zero-length UDP packet to port 5060 (SIP) of a AVM Fritz!Box will
> crash the VoIP-telephony application. This works from any IP-interface,
> including the DSL line.
> 
> 
> Collin (only delivering the message to FD and BugTraq)
> 
> 
>