Feeds

Attack exploits just-patched Mac security bug

Fix my browser, fan pleads

The Essential Guide to IT Transformation

If you haven't installed the latest security update for Mac OS X, now would be a good time.

A security researcher has released a proof-of-concept attack that exploits critical vulnerabilities that Apple patched on Thursday. The vulns stem from bugs in the Java runtime environment that allow attackers to remotely execute malicious code. Sun Microsystems patched the flaws early last month.

"I know that having a POC in hand bumps Apple's priority, so I sent them the POC and made them aware of the issue," said the researcher, Kevin Finisterre, a co-founder of security firm Netragard. "I honestly wanted my browser fixed."

Finisterre said he read through the patch details and researched where in OS X he thought the bug would be located. He sent the exploit to Apple employees on November 6, three days after Sun released a Java patch for Windows, Linux, and Solaris. Now that Apple has finally fixed the bug, he has gone ahead and made the code public.

The exploit is fairly rudimentary, but Finisterre said he plans to weaponize it soon. For the moment, browsers on unpatched systems that hit the exploit will crash. Behind the scenes, though, users will find their extended instruction pointers have been set to 0x41424344, a value that indicates a machine has been compromised.

The code will also exploit unpatched Windows machines, Finisterre said. Turns out Java's write-once-run-anywhere promise really is real. ®

Build a business case: developing custom apps

More from The Register

next story
14 antivirus apps found to have security problems
Vendors just don't care, says researcher, after finding basic boo-boos in security software
'Things' on the Internet-of-things have 25 vulnerabilities apiece
Leaking sprinklers, overheated thermostats and picked locks all online
iWallet: No BONKING PLEASE, we're Apple
BLE-ding iPhones, not NFC bonkers, will drive trend - marketeers
Only '3% of web servers in top corps' fully fixed after Heartbleed snafu
Just slapping a patched OpenSSL on a machine ain't going to cut it, we're told
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Israel's Iron Dome missile tech stolen by Chinese hackers
Corporate raiders Comment Crew fingered for attacks
Tor attack nodes RIPPED MASKS off users for 6 MONTHS
Traffic confirmation attack bared users' privates - but to whom?
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.