Safari, IE hacked first at Pwn2Own
Apple, Microsoft browsers drop to first shots at the hacking contest
Computerworld - Apple's Safari and Microsoft's Internet Explorer (IE) both fell to the first hackers who tried their luck on the browsers at Wednesday's opening day of Pwn2Own.
The hacking challenge kicked off at 3:30 p.m. PT, slightly later than scheduled, at the CanSecWest security conference, which runs March 9-11 in Vancouver, British Columbia.
A team from the French security company Vupen walked off with $15,000 and a new MacBook Air after exploiting an unpatched vulnerability in Safari.
"Apple has just released Safari 5.0.4 and iOS 4.3 a few minutes before the Pwn2Own contest," Vupen said Wednesday afternoon on its Twitter account several hours before the contest began. "This breaks some exploits but not all!!"
HP TippingPoint, the security company that sponsors Pwn2Own, said earlier today that the last-minute Safari updates could affect who was awarded prize money.
TippingPoint's Peter Vreugdenhil said the browsers were "frozen" two weeks before today's tip-off with the then-current versions of Safari, Google's Chrome 9, Microsoft's IE8 and Mozilla's Firefox 3.6, to give researchers a stationary target.
"Exploit development does sometimes rely on certain versions and that is the reason we have frozen the devices," Vreugdenhil said in an e-mail today.
But the Safari patches still had a part to play in Vupen winning. If the vulnerability used by Vupen to hack Safari had been fixed in 5.0.4, TippingPoint would not have awarded the $15,000 prize.
Instead, the money would have gone to the first researcher who exploited the "frozen" version of Safari -- 5.0.3 was on the MacBook Air -- using a bug still present in today's update.
"As long as the latest version still has the vulnerability, and the researcher has successfully 'pwned' [successfully compromised the computer] with the frozen version, he or she will have won," said Vreugdenhil.
This was the first time in four years that Safari had fallen to someone other than Charlie Miller, an analyst with the security consulting group Independent Security Evaluators (ISE), and co-author of The Mac Hackers Handbook. Miller won at Pwn2Own in 2008, 2009 and 2010 by exploiting Safari.
Microsoft's IE8 also dropped to its first attacker, Stephen Fewer, who drew the No. 1 spot for that browser. Fewer is the founder of Harmony Security, and frequently reports bugs to TippingPoint's Zero Day Initiative (ZDI) bounty program.
To exploit IE8, Fewer bypassed Protected Mode, said Aaron Portnoy, manager of TippingPoint's security research team and the organizer of Pwn2Own for each of its five years. Protected Mode is Microsoft's name for the sandbox-like anti-exploit technology designed to isolate the browser from the operating system and the rest of the computer.
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