1 on Windows NT exists D.o.S problem

Related procedures:
Check Point Firewall-1 4.0/4.1 on Windows NT
Description
Check Point Firewall-1 on Windows NT There is a DoS problem
details

Check Point Firewall-1 4.0 and 4.1 take up 100% CPU processing time with a simple cyber attack. Check Point Firewall-1 includes an SMTP security service, an SMTP proxy with advanced SMTP email processing capabilities, including CVP-based virus scanning and URI filtering. Sending a binary value of 0 to the SMTP port on the firewall will result in a CPU usage of 100%. The simple test method is to use Netcat to enter the /dev/zero content command on a Linux system as follows:

nc firewall 25 < /dev/zero

This vulnerability can be very fast and simple Further implement distributed denial of service attacks.

solution
installed Check Point Firewall-1 sp3

related sites

XPert.com/services.html & gt;

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