Anonymous researcher boasts of building Mac worm

Exploits bugs Apple missed in May, 'Information Security Sell Out' blogger says

An anonymous security researcher claimed this weekend to have created a worm that exploits a vulnerability in the Mac OS X operating system which Apple missed in a May round of patches.

A poster on the Information Security Sell Out blog said Sunday that he or she had written a proof-of-concept worm "in a few hours" that exploits a variation of a vulnerability patched in May by Apple.

According to the researcher (actually, in one posting, "writers" is used so there may be more than one contributing), he or she exploited a still-unpatched bug in mDSNResponder, a component of Apple's Bonjour automatic network configuring service, in the worm's code. "This vulnerability, as with the ones fixed, gives remote root access," the researcher said. Apple's May security update, 2007-005, included a fix for the mDSN bug.

Info Sec's blogger(s) said the worm was also "very 'customer' specific" and crafted for cash. "[It] could easily be changed to be more malicious," said the researcher.

The same blogger made a minor stir in April when, after a US$10,000 security conference contest concluded, he or she claimed to have grabbed the exploit from the conference wireless network and reverse-engineered the vulnerability. Conference organizers, however, denied that the wireless network had been cracked. When asked to back up his or her claims, the Info Sec blogger only replied: "There is no real benefit to me in doing so. I am not one who cares if people believe my claims or not."

In the same comment thread, the Info Sec blogger also promised to post the captured packets and other information "Once this bug is patched by Apple and I am satisfied that I would not be adding additional risk." Apple patched the QuickTime vulnerability May 1. The Info Sec blogger has not yet, however, posted the nicked network traffic.

Attempts to reach the Info Sec blogger via e-mail were unsuccessful.

Join the PC World newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Gregg Keizer

Computerworld
Show Comments

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?