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Showing posts from June, 2008

XSS Comedy at McAfee Secure's Expense

In celebration of the deadline for PCI Requirement 6.6 compliance as of June 30, 2008, I thought I'd share a little web app sec comedy at McAfee Secure's expense.
As well you should know by know, the existence of XSS vulnerabilities in a site that is required to meet PCI DSS standards means that the site IS NOT PCI COMPLIANT. Very simple, right?
Let's consider the McAfee Secure/Hacker Safe-branded site for Organize-It.
A seemingly handy site, perfect for your HGTV types, likely with healthy credit card limits. Uh-oh, here it comes. Oh yes, Organize-It handles credit cards and is thus beholden to PCI DSS.
Organize-It is also proudly displaying a current McAfee Secure badge, indicating that it's tested daily.
Given the focus of many a recent discussion it shouldn't shock you that Organize-It is vulnerable to XSS.
What's funny is what Organize-It does with regard to "handling" malformed requests.
Where a typical test string for XSS might be " script pay…

PC Universe is shrinking thanks to McAfee Secure's cluelessness

My web app sec friends know exactly how to push my red buttons. "Heh-heh, send it to Russ, he'll go off." Yep. ;-) Thanks, Rafal. Now I'm all spun up. I was sent two moronic gems this morning; one on the merits of McAfee Secure / Hacker Safe and the 109% sales increase it resulted in for PC Universe, the other an interview with the Internet's single biggest dillweed, Cresta Pillsbury. These articles are both a bit dated, but they equally embrace the premise of "trust" logos as a predominant sales driver, rather than any actual motivation to secure a site and protect consumers.
An example:
"If you’re doing conversion marketing and statistical testing on your website and you haven’t explored trust logos yet, then you’re missing out."
I must be the most naive person in the world; this enrages me. When will the idiots who write this crap get a clue? They've bought right into the hype the snake oil salesmen hoped they would and are now complici…

Open redirect vulnerabilities article - (IN)SECURE Issue 17

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I've written a comprehensive piece on the dangers of open redirects that's been published in Issue 17 of (IN)SECURE Magazine. Page 43 for your reading pleasure.
"An open redirect is a vulnerability that exists when a script allows redirection to an external site by directly calling a specific URL in an unfiltered, unmanaged fashion, which could be used to redirect victims to unintended, malicious web sites."
This issue is a giant pet peeve of mine; the article is intended to increase awareness of the dangers of this vulnerability and promote mitigation.

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Live from the 20th Annual FIRST Conference

I've been at the FIRST conference in Vancouver, BC this week presenting, attending great presentations, and meeting a fantastic group of people.
I'd like to applaud some great presenters I've seen so far, including Par Osterberg Medina (Detecting Intrusions), Anton Chuvakin (Log Analysis), Raffael Marty (Applied Security Visualization), and Steve Mancini (RAPIER).
I've also been advised of some tools for your consideration, to aid in the security analysis / incident response cause, as well as possible topics for toolsmith.
Take a look at these, if you aren't already familiar with them:
BitBlaze - Binary Analysis for COTS Protection and Malicious Code Defense
F-Response - The First Truly Vendor Agnostic Solution for Remote Forensics and eDiscovery
Maltego - Maltego is an open source intelligence and forensics application. It allows for the mining and gathering of information as well as the representation of this information in a meaningful way.
The Volatility Framework -…

CIAC Tech Bulletin on XSS a valuable reference

The only fault I could possibly find in the recently released CIAC Technical Bulletin, CIACTech08-003: Understanding Cross-Site Scripting (XSS), is that it should have been released a year ago or more. ;-)
But rather than nitpick, I'd like to applaud.
This is a fine effort, with a number of good resources cited.
You'll find content on the types of cross-site scripting, including DOM, non-persistent, persistent, and CSRF. Additionally, you'll note methods of protection and reference links to content on Htmlspecialchars, Htmlentities, and Giorgio Maone's NoScript.
This is a great starting point for enlightening vendors, developers, and IT folk who may not be as up to speed as you might like on the concerns caused by XSS vulnerabilities.
Given the fact that stories continue to surface on the shortcomings of major securityvendors, and their utter lack of diligence with regard to XSS, as well as efforts to further enlighten the masses, this is a valiant effort.
Well done, CIAC…