Apple finally patches dangerous DNS flaw

Apple has at last issued a patch for the DNS (Domain Name System) flaw considered one of the most dangerous vulnerabilities to ever affect the Internet.

Apple has at last issued a patch for the DNS (Domain Name System) flaw considered one of the most dangerous vulnerabilities ever to affect the Internet.

On Friday, Apple posted a security advisory saying that the patch will fix Apple's implementation of the Berkeley Internet Name Domain (BIND) DNS server in Mac OS X v10.4.11, Mac OS X Server v10.4.11, Mac OS X v10.5.4 and Mac OS X Server v10.5.4.

The DNS flaw allows an attacker to execute a cache poisoning attack, where traffic to a legitimate domain name is redirected to a malicious one after an attack on a DNS server. The user can type in the correct name for a Web site, but get a fake one instead, which can enable a phishing attack. While some users might notice if they're directed to a odd-looking Web page, many people could be successfully fooled.

Apple is among a handful of companies that security experts have said moved far too slow in reacting to the DNS bug. Other vendors, including Cisco and Microsoft, had patches ready when the existence of the flaw was disclosed on July 8. But some network administrators have reported compatibility problems with those early patches.

ISPs and major vendors with either DNS software or DNS services applied patches after the flaw's discoverer, security researcher Dan Kaminsky, coordinated a secret patching effort.

Details of how to exploit the flaw were eventually leaked on July 21, making those with still-unpatched systems especially vulnerable.

Many ISPs still have not patched their systems, and Kaminsky said those companies are moving far too slow given the danger the vulnerability poses. Some attacks have been reported.

Apple has also wrapped a dozen other fixes in the security update. The fixes can be downloaded individually or the "software update" feature can be used in OS X to download the whole batch.

Join the Good Gear Guide newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Jeremy Kirk

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

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.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?