Building the ultimate white box ESXi server for under $2000! Can it be done? Darren and Matt grab the company credit card and answer that question.

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Building the Ultimate White Box Server for under $2000

When it comes to building a white box server for ESXi your best resources are vm-help.com, UltimateWhiteBox.com, the VMware Compatibility Guide, and the VMware community.

We carefully selected ESXi supported components based on reliability and value. If this were the ultimate $3000 white box server we might have picked a server board with dual Xeon’s and ECC memory, but to keep it under that magic $2000 price point we went with beefy “desktop” components such as the Intel Core i7 920, the ASUS P6T Deluxe, and 12 GB of Corsair XMS3 memory.

Drive wise you can’t go wrong with the 3ware 9650SE-4LPML. It supports four SATA II drives in RAID 0, 1, 5, 10 or JBOD. It’s bigger brother the 9650SE-16ML sixteen channel SATA II controller is hot too — just at three times the price. The 9650SE isn’t supported out of the box by ESXi, however 3ware provides a knowledge base article and drivers necessary to add support for the card after your ESXi box is built.

Drive wise we picked up four Western Digital Caviar Black 1TB drives since they’re cheap and reliable.

To make things easy when installing all these components in our Rosewill RSV-Z4000 4U rackmount case we picked up a 4 Drive trayless how swap sata backplane from StarTech. IcyDock makes one too. This was the only $100 spent for convenience over performance/value, but anyone who has dealt with 5.25″ to 3.5″ mounting brackets will agree it’s worth every penny.

Rather than installing ESXi on the RAID, we used a 4GB USB drive from Patriot. The Xporter XT. It boasts really fast read/write times. I’m sure any old 1gb or larget USB drive would have done but they’re so cheap, why not?

We’re doing a little white box server contest. Winners will get all sorts of swag from the Hak5 Store. Check out all the details in the episode release thread at Hak5.org

Darren’s Hacking WPA-PSK keys using the recently updated Cowpatty and some damn fine lookup tables. Connecting ESXi to iSCSI targets — Matt breaks it down with FreeNAS. And Shannon completely bypasses local Windows logins with a Kernel modifyin’ boot cd? w00t!

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Cracking WPA Keys with Cowpatty

A lot has changed since I last talked about WPA Cracking on Hak5. Specifically Joshua Wright, author of CowPatty has released a new version that dramatically changes the way one thinks about cracking WPA and WPA2 TKIP keys.

The most notable new feature in Cowpatty 4.5 is the “-2″ option, which only requires the first two frames of the 4-way handshake to start attacking.

By removing the need for the third and fourth frames of the handshake, an attacker is now more likely to successfully crack WPA keys when channel hopping. Furthermore, the lack of the third and fourth frame opens up a world of possabilities when it comes to trapping targets with rogue access points, or “honey pots”.

An example scenario illustrated on Wright’s blog details how an attacker may pose as a victim’s corporate wireless access point. Since it doesn’t matter if the target associates with the honey pot, anything from hostap to a spare WPA supporting access point with a bogus key will due.

Of course this has our friend Robin Wood pondering a Jasager plugin. Pineapples anyone?

As for carrying out the attack it’s pretty straight forward. I BackTrack as my hacking OS of choice coupled with an eee PC or Acer Aspire One. When it comes to Wireless I’m a big fan of the ALFA AWUS036H 500mW USB Wireless Adapter.

Other tools needed to carry out the attack include WPA tables like these SSID specific Cowpatty WPA Tables from Offensive Security and the Aircrack-ng suite.

The commands are pretty straight forward and well highlighted in the episode. There are a number of ways to go about this so if you’ve got another method you’d like to share with me, questions about this, or suggestions for future topics drop me a line. darren[at]hak5=dot=org.

Excerpt Darren Kitchen‘s blog

Bypass Windows Local Logins

Kon-Boot

Kon-Boot is an prototype piece of software which allows to change contents of a linux kernel (and now Windows kernel also!!!) on the fly (while booting). In the current compilation state it allows to log into a linux system as ‘root’ user without typing the correct password or to elevate privileges from current user to root. For Windows systems it allows to enter any password protected profile without any knowledge of the password. It was acctually started as silly project of mine, which was born from my never-ending memory problems Secondly it was mainly created for Ubuntu, later i have made few add-ons to cover some other linux distributions. Finally, please consider this is my first linux project so far Entire Kon-Boot was written in pure x86 assembly, using old grandpa-geezer TASM 4.0.

So basically, Kon-Boot enables you to log into any Windows or Linux password protected computer without knowing the password or anything about it.

The tech behind it? Kon-Boot basically latches onto parts of the memory and starts patching parts of the kernel (the Brain!), mainly the parts that have to do with the log-on auth and security. These patches let you logon without a password. Then, the bootkit does it so quickly that it leaves no footprints behind after you leave.

DUDE!

To do this:

Go to the website above and download Kon-Boot, open the zip file, and burn the .iso to a disc. I use ImgBurner because it is fast, easy, and FREE.

Shut down the computer you intend to get on to. When booting up, if it isn’t already set to boot from CD (or flashdrive, or whatever Kon-Boot is on), go into the BIOS and set it. You should see the Kon-Boot splash screen for a few seconds, then the username/password screen will appear with the main username already set if they have it saved. If not you need to know the username ahead of time. Press enter or type in some random characters (it doesn’t really matter) and press enter. You’re in!

Now party, snoop around, and get that file you wanted. Get your flashdrive or CD out, then shut the computer back off like usual.

Protecting yourself:

Password protect your BIOS!

True Crypt your entire harddrive!

Excerpt Shannon Morse‘s blog

The gang gathers at a dive in Hoboken, NJ during their trip to NYC for the live diggnation and discuss wireless packet injection with airpwn, advancements in WPA-PSK attacks and of course, virtualization.

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In an effort to thwart hangovers the gang drops by DC’s Taven in Hoboken to geek out about Wifi and Virtualization over shots and cold ones.

Darren is excited about the recent improvements to both Airpwn and Cowpatty.

Edit: Mubix points out these awesome WPA Tables from Offensive-Security (You know ‘em as the BackTrack guys).

Best WPA Tables out there for us with CoWPAtty. (And another little + is they posted the password list they used to generate the tables, which is also an AWESOME password list for cracking all kinds of passwords.

Matt answers some viewers questions and encourages more for an upcoming special.

Shannon has all the deets on this week’s contest and LAN party.

Building your own VMware ESXi Server in under an hour with parts you may have lying under your bed. Extreme sports cameras and mounts and mounts can be expensive. Why not build your own for about 5 bucks. And light video editing that’s both easy and free? Avidemux may be the answer.

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Darren’s on a mission to mount a digital video camera to his motorcycle. While commercial options such as the $300 Vholdr Contour HD and $150 Oregon Scientific AT3K are available, why not build your own universal camera mount for about 5 bucks.

Continuing with the theme of rolling your own, why not build your own ESX/ESXi compatible virtual machine host? Matt builds one that fits inside a gym bag and walks us through setting up ESXi in about 10 minutes (give or take a few progress bars).

Rounding out the nearly free and useful bits this episode, Shannon shows us an open source video editing application that may be perfect for your light video editing needs. Avidemux is a light weight editor perfect for simple video trimming, filtering and encoding. It sports some really nice automation and job queing features and comes with profiles pre-configured for common formats such as MP4 for iPod, PSP, or Apple TV.