Gunkerty Jeb writes "Researchers at Core Security Technologies have uncovered a security hole that could allow someone to circumvent the application sandbox restrictions of Mac OS X. The report of the vulnerability, which affects Mac OS X 10.7x, 10.6x and 10.5x, follows Apple's announcement earlier this month that all applications submitted to the Mac App store must implement sandboxing as of March 1, 2012. Sandboxing, Apple has argued, limits the resources applications can access and makes it more difficult for malware to compromise systems. Researchers at Core however revealed Nov. 10 that they had warned Apple in September about a vulnerability in their sandboxing approach. According to Core's advisory, several of the default predefined sandbox profiles fail to 'properly limit all the available mechanisms.' As a result, the sandboxing restrictions can be circumvented through the use of Apple events."
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