Cisco

7 things you should do to every switch

June 26, 2009

So often I see organizations purchase a new switch and throw it into production without any configuration. This is poor management and terribly insecure. Therefore I’m going to offer my quick guide to 7 things you should do to every switch. This is by no means a complete guide to security or best practices this [...]

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How to Configure OSPF within your LAN.

December 10, 2008

Over the past year I’ve become a big proponent of using Layer 3 (L3) routing protocols within large LAN networks. There are several benefits to using routing protocols at the LAN level but the driving force behind my support of L3 in the LAN is to mitigate Layer 2 (L2) security attacks. (For more information [...]

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Cisco IOS SSH DoS Vulnerability

May 22, 2008

Cisco IOS version 12.4 is vulnerable to an SSH DoS attack. A Cisco device could be rebooted continually by a crafted SSH packet. Please update your Cisco devices ASAP. Cisco Advisory

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Cisco Gaming – Peter Packet

November 4, 2007

Did you know there was a Cisco Kid and Gaming site? Me neither. Welcome to the adventures of Peter Packet. I have to admit I’m intrigued by a game that explores concepts of congestion, wireless signal strength, and viruses in an engaging kids game. You have to check this out. Peter Packet

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Caveman Cisco Hacking

September 27, 2007

Robert Moore is a 23-year-old hacker convicted of hacking at least 15 Voice over Internet Protocol (VoIP) providers in an effort to re-sell illegally obtained telephone connections. Moore was able resell more than 10 million minutes of service at deeply discounted rates. It’s estimated they netted over $1M. And what incredible elite technique did Moore [...]

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BH Review – NAC@TTACK

August 19, 2007

NACATTACK | Dror-John Roecher & Michael Thumann These two gentleman gave the best talk I’ve ever heard period. Their research is extensive, their work is amazing, and they had great speaking skills. So what did they do? The completely reverse engineered the Cisco NAC (Network Access Control) and figured out this terrible flaw and exploited [...]

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DST – Cisco & HP

March 9, 2007

In the flurry of patching systems for Daylight Savings Time don’t forget your network infrastructure. HP Patches & Instructions link Cisco Patches & Instructions linkFor Cisco the basic command is“clock summer-time {PST,MST,CST,EST} recurring 2 Sun Mar 2:00 1 Sun Nov 2:00“

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