Advisory Details

July 14th, 2015

Adobe Reader JavaScript API Race Condition Restrictions Bypass Vulnerability

CVE ID	CVE-2015-5086
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Adobe
AFFECTED PRODUCTS	Reader
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['19931']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to bypass API restrictions on vulnerable installations of Adobe Reader. 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 way Adobe handles execution in certain contexts. By creating a specially crafted PDF with specific JavaScript instructions, it is possible to trigger a race condition that allows bypassing of Javascript API restrictions. A remote attacker could exploit this vulnerability to execute arbitrary code.
ADDITIONAL DETAILS	Adobe has issued an update to correct this vulnerability. More details can be found at: https://helpx.adobe.com/security/products/reader/apsb15-15.html
DISCLOSURE TIMELINE	2015-05-14 - Vulnerability reported to vendor 2015-07-14 - Coordinated public release of advisory
CREDIT	AbdulAziz Hariri and Jasiel Spelman - HP Zero Day Initiative

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