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Multiple AVM FRITZ!Box VoIP Remote Denial of Service Vulnerability
Information
Severity
Severity
High
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
7.8
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
5 years ago
Modified
Modified
5 years ago
Summary
Multiple AVM FRITZ!Box devices are prone to a Denial of Service.
Insight
Insight
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.
Detection Method
Detection Method
Check the AVM FRITZ!OS version.
Solution
Solution
Updates are available. Please see the references or the script output on the available updates for the matching model.