Landed in Vancouver

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By Chris Eng April 17, 2007

As you may have guessed, I'm out in Vancouver the rest of the week attending CanSecWest. Looking forward to catching up with old friends and former colleagues and meeting more of you lurkers! I am always overly paranoid about getting owned by 0day at these conferences. My work laptop won't run Linux cleanly without rebuilding the kernel, and since I don't have time for that stuff anymore, I'm... READ MORE

Take WASC Data With a Grain of Salt

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By Chris Eng April 10, 2007 3

The Web Application Security Consortium (WASC) just published statistics on the prevalence of various web application vulnerabilities. The list was compiled from 31,373 automated assessments performed during 2006 by four contributing companies, with the methodology around data collection described as follows: The scans include a combination of raw scan results and results that have been manually... READ MORE

Public Perception of Application Risk

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By Chris Eng March 23, 2007

There has been a lot of buzz recently about the possibility of Xbox Live being hacked. People are taking over accounts, locking out the original owners, and racking up charges. Message boards were in a panic, speculating about what the gaping security hole was and how it was exploited. As it turns out, the whole thing boils down to a social engineering attack (or pre-texting, for those who like... READ MORE

Online “Pick Pocket” Attacks Getting Worse After All These Years

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By Chris Wysopal March 21, 2007

You see, Oliver... [sung] In this life, one thing counts In the bank, large amounts I'm afraid these don't grow on trees, You've got to pick-a-pocket or two. You've Got To Pick-a-Pocket or Two lyrics, from Oliver! Does this ABC News story on criminals looting 401K and online trading accounts of tens of millions of dollars surprise anyone in the security field? Well of course it shouldn’t. We... READ MORE

Vulnerability Disclosure Evolves

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By Chris Eng March 13, 2007

Jeremiah recently posted about the Microsoft Security Response Center inviting security researchers to disclose vulnerabilities discovered in a Microsoft "online web property," which is to say, anything in the domain (or,, etc.). Immediately, people started trying to profit from the idea, suggesting that Microsoft agree in advance to a "reward system" whereby they... READ MORE

It's Time For Fair Use In Patent Law

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By Chris Wysopal February 27, 2007

RFID security device manufacturer HID is using threats of patent infringement to stifle a Black Hat Federal presentation by Chris Paget on the threat of RFID card cloning. The risks of RFID card cloning are real and are nothing new. The details of the technology has been publicly available for years. What is new is the visceral demonstration that a device can provide. HID is scared that people... READ MORE

Better Criteria for Selecting Pen Test Consultants

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By Chris Eng February 27, 2007  | Research 3

An article was forwarded to me today, entitled Avoid Wasting Money on Penetration Testing. While the core message is on target (i.e. be sure you know what you are getting before you sign on the dotted line), the suggestions for how to achieve this are misleading. Let's examine the "5 steps to choosing a supplier" outlined in the article: Ask if their consultants have passed an... READ MORE

Implications of the Google Desktop Hack

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By Chris Eng February 23, 2007

Watchfire just released a whitepaper on Overtaking Google Desktop which is a thought-provoking read. It essentially exploits the mechanism by which Google Desktop hooks the browser in order to inject links to the local Google Desktop instance when the user performs a typical online Google search. There are a couple of gating factors to making this attack viable -- the initial attack vector... READ MORE

TJX Data Theft Just Keeps Getting Worse

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By Chris Wysopal February 23, 2007

TJX issued a press release yesterday coming clean on what they know about the breach of their corporate network. They are now admitting that they have been compromised as early as July 2005 and continued to be compromised up until December 2006. It is unlikely only one attacker found the vulnerabilities exploited. I wouldn't be surprized if dozens of attackers found their way into the network... READ MORE

Stupid Solaris Tricks, and a Brief Retrospective

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By Chris Eng February 12, 2007 3

An annoyingly stupid vulnerability in the stock Solaris 10/11 telnet daemon, courtesy of Full Disclosure (more details in this PDF, but it's NSFW): Pass "-f[user]" as the "-l" option to telnet, and presto, you bypass the entire authentication process and are logged in as the user of your choice! Works for the root user too, as long as the server is configured to allow remote root logins. ceng@... READ MORE

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