Advisory Details

October 13th, 2015

Adobe Acrobat Reader DC CBSharedReviewStatusDialog Javascript API Restrictions Bypass Vulnerability

ZDI-15-501
ZDI-CAN-3085

CVE ID CVE-2015-6722
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Reader DC
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['20520', '20521']. 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 Adobe Reader DC. 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 CBSharedReviewStatusDialog method. By creating a specially crafted PDF with specific Javascript instructions, it is possible to bypass the 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/acrobat/apsb15-24.html
DISCLOSURE TIMELINE
  • 2015-07-24 - Vulnerability reported to vendor
  • 2015-10-13 - Coordinated public release of advisory
CREDIT Matt Molinyawe and Jasiel Spelman of HP Zero Day Initiative
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