Fritz!Box 7050 UDP packet denial of service
| fritzbox-udp-packet-dos (31633) |  Low Risk |
Description:
AVM Fritz!Box 7050 and possibly other models are vulnerable to a denial of service caused by an error in handling UDP packets. A remote attacker could send a zero-length UDP packet to port 5060 to cause the VOIP application to crash.
Platforms Affected:
- AVM, Fritz!Box 7050
Remedy:
Upgrade to the latest version of Fritz!Box, available from the AVM Web site. See References.
Consequences:
Denial of Service
References:
- AVM Web site, FRITZ!Box Fon WLAN at http://www.avm.de/en/Produkte/FRITZBox/FRITZ_Box_Fon_WLAN/index.html.
- maZZoo's blog 18 01 2007, Fritz!Box 7050 (and others) DoS at http://mazzoo.de/blog/2007/01/18#FritzBox_DoS.
- BID-22130: AVM FRITZ!Box VoIP Remote Denial of Service Vulnerability
- CVE-2007-0431: AVM Fritz!Box 7050, and possibly other product models, allows remote attackers to cause a denial of service (VoIP application crash) via a zero-length UDP packet to the SIP port (port 5060).
- SA23868: Fritz!Box UDP Packet SIP Denial of Service
- VUPEN/ADV-2007-0272: AVM Fritz!Box SIP Service UDP Packet Handling Remote Denial of Service Vulnerability
Reported:
Jan 18, 2007
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