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Home » Hacking News » NetScreen ScreenOS Port Scan DoS Vulnerability

NetScreen ScreenOS Port Scan DoS Vulnerability

by Nikola Strahija on February 5th, 2002 If a user within the trusted network attempts to do a port scan on an external system, ScreenOS could fail requiring a restart. This is due to the number of concurrent sessions allowed per user. Exploitation of this issue is possible using a port scanner that does not properly release sessions which could cause the system to stop responding.


NetScreen is a line of internet security appliances inetgrating firewall, VPN and traffic management features. ScreenOS is the software used to manage and configure the firewall. NeScreen supports Microsoft Windows 95, 98, ME, NT and 2000 clients.

No exploit code required.


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