Advisory Details

June 24th, 2015

(Pwn2Own) Apple OS X XSS Sandbox Bypass Vulnerability

CVE ID
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Apple
AFFECTED PRODUCTS	OS X
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within certain URLs in the protocol handler whitelist. The issue lies in the ability to inject JavaScript within the 'entity' parameter. An attacker can leverage this vulnerability to execute code outside the context of the sandbox.
ADDITIONAL DETAILS	Apple has issued an update to correct this vulnerability. More details can be found at: https://support.apple.com/en-us/HT201536 no CVE, server-side fix
DISCLOSURE TIMELINE	2015-03-19 - Vulnerability reported to vendor 2015-06-24 - Coordinated public release of advisory
CREDIT	lokihardt@ASRT

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