Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Pen-Test
[Top] [All Lists]

Re: Crashing services with NMAP and/or SuperScan ?

Subject: Re: Crashing services with NMAP and/or SuperScan ?
Date: Tue, 23 Nov 2004 22:15:08 +0000
At 11:41 23/11/2004 +0100, Petr.Kazil@eap.nl wrote:
>With Superscan I seem to have blown out a switch. It went "red" on the HP
>Openview screen and didn't react to ping anymore. All the network traffic
>continued - fortunately :-) As of today the admins haven't been able to
>tell me what really happened. I haven't dared to try Superscan anymore -
>although I like it's output very much - especially it's checks for headers
>and anonymous FTP and SMTP.

I have a client who did the same thing - with an Extreme switch. I imagine it's a problem similar to the AIX problem, where the device allocates memory to each attempted port until it runs out of memory and crashes? We also have an ADSL router that behaves this way. The solution seems to be to ensure that the scanner tears down the session properly rather than executing a stealth scan IMHO.

regards
Pete

<Prev in Thread] Current Thread [Next in Thread>