Advisory Details

April 3rd, 2015

(Pwn2Own) Mozilla Firefox resource: URL Remote Code Execution Vulnerability

CVE ID	CVE-2015-0816
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Mozilla
AFFECTED PRODUCTS	Firefox
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['19609']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mozilla Firefox. 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 the handling of documents loaded through the resource: URL. As the same flag was used for chrome: and resource: URLs, these pages were able to subsequently load privileged chrome pages. By combining this with a same-origin policy bypass, an attacker could execute arbitrary code in the context of the current user.
ADDITIONAL DETAILS	Mozilla has issued an update to correct this vulnerability. More details can be found at: https://www.mozilla.org/en-US/security/advisories/mfsa2015-33/
DISCLOSURE TIMELINE	2015-03-18 - Vulnerability reported to vendor 2015-04-03 - Coordinated public release of advisory
CREDIT	Mariusz Mlynski

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