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. ®

Next gen security for virtualised datacentres

More from The Register

next story
Ice cream headache as black hat hacks sack Dairy Queen
I scream, you scream, we all scream 'DATA BREACH'!
Goog says patch⁵⁰ your Chrome
64-bit browser loads cat vids FIFTEEN PERCENT faster!
NIST to sysadmins: clean up your SSH mess
Too many keys, too badly managed
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
Researchers camouflage haxxor traps with fake application traffic
Honeypots sweetened to resemble actual workloads, complete with 'secure' logins
Attack flogged through shiny-clicky social media buttons
66,000 users popped by malicious Flash fudging add-on
New Snowden leak: How NSA shared 850-billion-plus metadata records
'Federated search' spaffed info all over Five Eyes chums
Three quarters of South Korea popped in online gaming raids
Records used to plunder game items, sold off to low lifes
Oz fed police in PDF redaction SNAFU
Give us your metadata, we'll publish your data
prev story

Whitepapers

5 things you didn’t know about cloud backup
IT departments are embracing cloud backup, but there’s a lot you need to know before choosing a service provider. Learn all the critical things you need to know.
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.
Backing up Big Data
Solving backup challenges and “protect everything from everywhere,” as we move into the era of big data management and the adoption of BYOD.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?