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Created on ‎09-14-2007 07:52 AM

How to Block FTP Brute force attacks??

Does anyone know how to configure a signiture to detect when a FTP server is being brute force attacked? It would be nice to have the Fortigate block this.
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abelio
SuperUser
SuperUser

Created on ‎09-14-2007 08:07 AM

Take a look to FTP_decoder signatures INtrusion Protection->Signature->Protocol Decoder->ftp_decoder specially " FTP.Login.Failed" and " FTP.Bounce.Attack" ones, and adjust Action and protection profiles accordingly.

regards




/ Abel

regards / Abel
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Created on ‎09-14-2007 08:41 AM

I would like to " Drop Session" after several detections of failed login. Is there a way to set a threshold or would it drop session after the first detection? Thanks
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abelio
SuperUser
SuperUser
In response to

Created on ‎09-14-2007 09:28 AM

Try with " Reset client" first . Thresholds are pre-defined in traffic anomalies, changing that values requires a deeper study of type of traffic in your network. Take a look to ' IPS Guide' to go further: http://docs.forticare.com/fgt/techdocs/FortiGate_IPS_Guide_01_30005_0080_20070725.pdf

regards




/ Abel

regards / Abel
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