Hello, I totally agree. An IDS for auditing firewall or other policies can be usefull, if properly configured. I simple hate the fact that most vendors position their IDS product as an attack blocking device. The only thing they can is actually RST tcp connections (sometimes). My opnion is that is quite a simple and basic method for doing attack blocking.
Gr -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Peter Busser Sent: Tuesday, September 23, 2003 8:36 AM To: [EMAIL PROTECTED] Subject: The usefullness of IDSes (Was: Re: [Full-Disclosure] Is Marty Lying?) Hi! > "Detect intrusions" - if you can set an IDS signature for something, then > you shouldn't be vulnerable to it. So the functionality of IDS is to tell > you when you've been compromised by six-month old public vulnerabilities > that dvdman has finally gotten his hands on an exploit for, that you never > bothered to patch for? > > Useless. And what if you use an IDS for checking a security policy? E.g. if you have a special server that is only used by the accounting department and you set up rules to detect connections to that server coming from other departments? Or to monitor port scanning probes on the network. A system shouldn't be vulnerable to a probe. But it could mean the prelude to an attack. Of course these things could be detected by other means as well. Groetjes, Peter Busser -- The Adamantix Project Taking trustworthy software out of the labs, and into the real world http://www.adamantix.org/ _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
