Intrusion Prevention

WSDirectory.UDP.Amplification.Detection

Description

This indicates a UDP Amplification attempt through the WS-Directory protocol.
The vulnerability is due to an error in the vulnerable application when handling a series of maliciously crafted requests. An attacker can exploit this to cause a denial of service condition on the affected machine via maliciously crafted requests. The signature detects for 50 suspicious requests within 1 second.
Setting this signature to "Quarantine" is not definitive to who the attacker is as the both the client and the server are victims for this issue.

Affected Products

Systems using the WS-Directory protocol

Impact

Denial of Service: Remote attackers can crash vulnerable systems

Recommended Actions

Monitor the traffic from that network for any suspicious activity.