Tag: Firefox

While it is nice to know that your product is good and better than your Competitors,some times you invite an opportunity to expose the chinks in your armour.

Google has found this out to its chagrin.

Buoyed by zero-day attack ever hitting Chrome in the wild, and at the previous three years’ contests, Google got bruised badly at annual Pwn2Own hacker contest when Google got hacked .

It is wise that your friends overestimate  and enemies underestimate you.

Safari ,Firefox and Internet Explorer are grinning.

May be the hackers will be offered employment in any of these Companies or worse(better?) Google a la Facebook.

What about the prize money of One Million Dollars?

“It was a rare event. To date, there are no known reports of a zero-day attack ever hitting Chrome in the wild, and at the previous three years’ contests, Chrome escaped unscathed, even as Internet Explorer, Firefox, and Safari were brought down by exploits that allowed the attackers to take complete control of the machine running the software. The chief reason: Chrome’s security sandbox—which isolates web content inside a highly restricted perimeter that’s separated from the rest of the operating system—makes it harder to write reliable attacks.

“We pwned Chrome to make things clear to everyone,” said Chaouki Bekrar, CEO of Vupen Security, which wielded the Chrome zero-day an hour or so after the contest began on Wednesday. “We wanted to show that even Chrome is not unbreakable.”

A contestant in the second contest, which Google has dubbed “Pwnium,” was also able to bypass the Chrome sandbox so he could execute any code of his choosing on the underlying machine. Sergey Glazunov wasn’t on site to discuss the hack. Google has said only that for him to win the top $60,000 reward, his exploit was required to bypass the sandbox using code native to Chrome.

Bekrar told Ars that his team’s attack exploited what’s known as a use-after-free bug to bypass DEP, or data execution prevention, and ASLR, or address space layout randomization. Both mitigations are designed to prevent hackers from executing malicious code even when they locate vulnerabilities. He said it exploited a second vulnerability that allows code to break out of the sandbox. He declined to detail the vulnerable component, except to say it was found in the “default” installation of the Google browser.

That detail led several observers to speculate that an Adobe Flash plugin was the means Vupen used to access more sensitive parts of the operating system. While Chrome runs the media player add-on in its own sandbox, the perimeter is considerably more porous than it is with other components, security researchers say. Core functionality in Flash, for instance, requires the app be able to control web cams and microphones, access system state, and connect to display monitors and other connected devices.

Now in its sixth year at the CanSecWest security conference in Vancouver, the contest rules this time around have been significantly reworked. In the past, organizer Tipping Point paid as much as $15,000 to the first person who exploited a fully patched version of each targeted software. Competitors on Wednesday scored 32 points for zero-day vulnerabilities, and they received 10 points each for exploiting already patched security flaws.

http://digg.com/newsbar/Technology/google_s_chrome_hacked_within_a_few_minutes_in_the_contest_pwn2own

Google has pledged cash prizes totaling $1 million to people who successfully hack its Chrome browser at next week’s CanSecWest security conference.

Google will reward winning contestants with prizes of $60,000, $40,000, and $20,000 depending on the severity of the exploits they demonstrate on Windows 7 machines running the browser. Members of the company’s security team announced the Pwnium contest on their blog on Monday. There is no splitting of winnings, and prizes will be awarded on a first-come-first-served basis until the $1 million threshold is reached.

Now in its sixth year, the Pwn2Own contest at the same CanSecWest conference awards valuable prizes to those who remotely commandeer computers by exploiting vulnerabilities in fully patched browsers and other Internet software. At last year’s competition, Internet Explorer and Safari were both toppled but no one even attempted an exploit against Chrome (despite Google offering an additional $20,000 beyond the $15,000 provided by contest organizer Tipping Point).

Chrome is currently the only browser eligible for Pwn2Own never to be brought down. One reason repeatedly cited by contestants for its lack of attention is the difficulty of bypassing Google’s security sandbox.

“While we’re proud of Chrome’s leading track record in past competitions, the fact is that not receiving exploits means that it’s harder to learn and improve,” wrote Chris Evans and Justin Schuh, members of the Google Chrome security team. “To maximize our chances of receiving exploits this year, we’ve upped the ante. We will directly sponsor up to $1 million worth of rewards.”

In the same blog post, the researchers said Google was withdrawing as a sponsor of the Pwn2Own contest after discovering rule changes allowing hackers to collect prizes without always revealing the full details of the vulnerabilities to browser makers.

http://arstechnica.com/business/news/2012/02/google-pledges-1-million-in-cash-to-hackers-who-exploit-chrome.ars