Security Basics mailing list archives
Re: Scanning--more then one side to the argument
From: Barrie Dempster <barrie () reboot-robot net>
Date: Thu, 31 Mar 2005 13:57:33 +0100
Sherman Hand wrote:
There has been a on going discussion about the scanning results on our customers. Thought one says that "any" port on a standard nmap, showing as "open" is a security risk. Thought two says, no since some things need to show in a state of open. Should we be stating that through proactive scan, when we find any port showing as open, that it is a security issue waiting to happen? Or only if we can show a issue? Thoughts? Shand
Anything being "open" is a *potential* security issue. If you have a service running there is the *potential* for it to have bugs. This is contrasted with *actual* security issues where the port is open and the listening service has a vulnerability. Example: If I run a public web server I would open a port, this has the *potential* for security issues to occur, but as long as the service isn't vulnerable there is no *actual* security issue. Opening up running services does increase avenues of attack, increases risk and is why we only run services that are necessary. Is it a security issue waiting to happen? Yes absolutely, it can and most likely will become a security issue. This however is defining "security issue" as a definite attack vector. You could also define "security issue" as "something we need to consider in our security policy". What exactly is the significance of the question? and in what context do you have "security issue" -- With Regards.. Barrie Dempster (zeedo) - Fortiter et Strenue blog: http://zeedo.blogspot.com site: http://www.bsrf.org.uk CA: www.cacert.org "He who hingeth aboot, getteth hee-haw" - Victor (Still Game)
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Current thread:
- Scanning--more then one side to the argument Sherman Hand (Mar 30)
- Re: Scanning--more then one side to the argument Barrie Dempster (Mar 31)
- RE: Scanning--more then one side to the argument Steve Fletcher (Mar 31)
- <Possible follow-ups>
- Re: Scanning--more then one side to the argument Shand (Mar 31)
- RE: Scanning--more then one side to the argument Steve Fletcher (Mar 31)
- Re: Scanning--more then one side to the argument Shand (Mar 31)
- RE: Scanning--more then one side to the argument Steve Fletcher (Mar 31)