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Re: Re: PCI DSS 11.1 - ".. deploying a wireless IDS/IPS..". Kismet+Snort?
From: "Ray" <rpesek () hotmail com>
Date: Sat, 31 Oct 2009 12:31:32 -0400
Although this also does not meet the PCI requirement, one thing you can do to rapidly detect transient wireless access points is this: 1. Make sure your network default route leads to your firewall. 2. Monitor the firewall for internal devices trying to do NTP (time sync) lookups. This presumes you have an internal time server system and you have properly configured your internal systems to not go to the Internet for time. It works because home wireless access points are usually set up by default to perform time synchronization. As soons as someone plugs one in, it will light up the firewall logs. Efforts like this also presume your company is not into checkbox compliance and is truly concerned about the security of their network. Brian, where do you find guidance like this? I just can't seem to find it anywhere on the PCI web site. Thanks, Ray <brian_klumpp () hotmail com> wrote in message news:20091029174027.23311.qmail () securityfocus com... I realize this thread is a little old, but I did want to make a comment in regards to this. As a QSA, *wired* side scanning alone would be insufficient to meet the intent of the PCI DSS 11.1 requirement. There is this quote from PCI Council: "Relying on wired side scanning tools (e.g. tools that scan suspicious hardware MAC addresses on switches) may identify some unauthorized wireless devices; however, they tend to have high false positive/negative detection rates. Wired network scanning tools that scan for wireless devices often miss cleverly hidden and disguised rogue wireless devices or devices that are connected to isolated network segments. Wired scanning also fails to detect many instances of rogue wireless clients. A rogue wireless client is any device that has a wireless interface that is not intended to be present in the environment." ----------------------------------------------------------------- Securing Your Online Data Transfer with SSL. A guide to understanding SSL certificates, how they operate and their application. By making use of an SSL certificate on your web server, you can securely collect sensitive information online, and increase business by giving your customers confidence that their transactions are safe. http://www.dinclinx.com/Redirect.aspx?36;5001;25;1371;0;1;946;9a80e04e1a17f194
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- Re: Re: PCI DSS 11.1 - ".. deploying a wireless IDS/IPS..". Kismet+Snort? Ray (Nov 02)