Security UPDATE--Is the "Drive-by Pharming" Attack Misnamed?--February 21, 2007

Symantec researchers blog about an attack in which a Web page mimics the functionality of an AP management interface. But what does this have to do with "drive-by"? This plus links to other security resources.

ITPro Today Contributors

February 20, 2007

9 Min Read
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=== CONTENTS ===================================================

IN FOCUS: Is the "Drive-by Pharming" Attack Misnamed?

NEWS AND FEATURES

- Master AACS Key Found

- 12 Microsoft Security Bulletins for February 2007

- Checking Audit Logs for Tampering

- Recent Security Vulnerabilities

GIVE AND TAKE

- Security Matters Blog: Schneier on DRM

- FAQ: Administrative Templates for Windows Vista

- From the Forum: Chroot/Jail Implementation for Windows

- Share Your Security Tips

PRODUCTS

- IP Storage Appliances Add Encryption

- Wanted: Your Reviews of Products

RESOURCES AND EVENTS

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=== IN FOCUS: Is the "Drive-by Pharming" Attack Misnamed? ======

by Mark Joseph Edwards, News Editor, mark at ntsecurity / net

Any wireless Access Point (AP) that uses a default password is vulnerable to manipulation by anyone that can gain some form of connectivity to it. If the wireless AP's management interface is Web-based, it can be mimicked, and therein resides a problem waiting to happen.

If an intruder can craft a special Web page that mimics the functionality of an AP management interface, that Web page could take any action against an AP that's allowed by the management interface. So what's to stop an attacker from developing a Web page that, when viewed, changes any of the available AP settings? Not much, apparently.

Symantec researchers recently blogged about this very scenario, and they point out how an attacker might use this attack method to change DNS settings, which could lead to phishing scams. In the blog article, they wrote, "The attackers create a Web page that includes malicious JavaScript code. When the Web page is viewed, this code, running in the context of your Web browser, uses a technique known as 'Cross Site Request Forgery' and logs into your local home broadband router.... One simple, but devastating, change is to the user's DNS server settings."

Symantec chose to call this attack "drive-by pharming," and that bothers me. I saw several headlines about this attack type on the Internet before I read the Symantec blog, and I thought, "Oh great, another way to get in your car, drive around, find unprotected APs, and steal people's information." But this attack has absolutely nothing in common with war-driving. So Symantec introduced confusion with the attack name, and some media reports spread the confusion further.

Symantec would do well to stop confusing us about security problems with its use of misleading attack-type names. In the case of "drive-by pharming," the attack has nothing to do with being in close proximity to an AP (as is the case with war-driving) and is related to "pharming" only in that attackers could use the management interface vector to manipulate DNS to point to the DNS servers of their choice, which in turn could resolve certain host names to IPs that point to pharming sites.

The ability to attack someone's DNS settings could be exploited in a variety of ways, none of which Symantec bothered to mention. For example, an attack could install botnet software or other malware, spy on Web usage habits, intercept email, or intercept sensitive files for corporate espionage; the list goes on and on. It seems to me that misnaming attacks is itself a security problem because it misinforms people who might not have the time to delve deeper into the nuts and bolts behind a given title. I think Symantec should consider patching its naming methods. What do you think? Send me an email with your thoughts on this issue.

If you're interested in the Symantec report, you can read it at:

http://www.symantec.com/enterprise/security_response/weblog/2007/02/driveby_pharming_how_clicking_1.html

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=== SECURITY NEWS AND FEATURES =================================

Master AACS Key Found

The Advanced Access Content System (AACS) protection used in HD DVD and Blu-Ray DVD disk systems sustained another attack--this one more devastating than the last.

http://www.windowsitpro.com/Article/ArticleID/95180

12 Microsoft Security Bulletins for February 2007

Microsoft released 12 security updates for February, rating 6 of them as critical, including a critical update for the company's malware protection engine. The engine is used by several Microsoft products, including Windows Defender--a core component of Windows Vista.

http://www.windowsitpro.com/Article/ArticleID/95183

Checking Audit Logs for Tampering

Many administrators wonder if there is anything built into Windows that can verify that the Security event log hasn't been tampered with in some way. Randy Franklin Smith gives you the answer and explains how to look for signs of tampering.

http://www.windowsitpro.com/Article/ArticleID/94142

Recent Security Vulnerabilities

If you subscribe to this newsletter, you also receive Security Alerts, which inform you about recently discovered security vulnerabilities. You can also find information about these discoveries at

http://www.windowsitpro.com/departments/departmentid/752/752.html

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=== GIVE AND TAKE ==============================================

SECURITY MATTERS BLOG: Schneier on DRM

by Mark Joseph Edwards, http://www.windowsitpro.com/securitymatters

You've probably heard of Bruce Schneier. Have you heard what he has to say about DRM? Learn more about my opinion on DRM and get a link to what Schneier says in this blog article on our Web site.

http://www.windowsitpro.com/Article/ArticleID/95175

FAQ: Administrative Templates for Windows Vista

by John Savill, http://www.windowsitpro.com/windowsnt20002003faq

Q: Where are the Windows Vista administrative template (i.e., ADMX) files stored?

Find the answer at

http://www.windowsitpro.com/Article/ArticleID/95127

FROM THE FORUM: Chroot/Jail Implementation for Windows

A forum participant writes that he's aware of WinQuota's WinJail Desktop software, which implements a type of sandbox/chroot/jail environment similar to the one found on UNIX and Linux systems. He wonders if other similar tools are available for Windows and whether such an approach is useful. Join the conversation at the URL below.

http://forums.windowsitpro.com/web/forum/messageview.aspx?catid=42&threadid=84000&enterthread=y

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=== PRODUCTS ===================================================

by Renee Munshi, [email protected]

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