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September 8, 2008 10:00am pdt
 
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Attachment Details

Port scanning and service enumaration

Tags: IDS/IPS
The IPS provider says:
"There are many ways/tools for performing the hosts/services mapping on hosts facing the internet. What is shown on the report sent to us is that someone managed to identify services running on a number of hosts.

Have in mind that the IDS/IPS pre-attack probe signatures will fire if any sin, fin or any other type of service identification packets  identified either after the elapsed time or when the number of probes is reached. So if an attacker has enough time he/her  can identify the services running despite what technologies are in place."

I ask:
Is this resonable? Althought we have 2 layers of firewalls and an IDS/IPS system in place, can attackers identify the services running on our hosts anyway? The questions assumes that the firewalls and IPS system are configured "correctrly" (of course it depends on the business needs).
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Question Stats
Zone: Security
Question Asked By: evgenios
Solution Provided By: richrumble
Participating Experts: 1
Solution Grade: A
Views: 0
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