Advisory Details

August 8th, 2017

Adobe Reader DC XFA closeDoc Use-After-Free Remote Code Execution Vulnerability

ZDI-17-588
ZDI-CAN-4716

CVE ID CVE-2017-11223
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 ['28202']. 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 handling of the closeDoc method within an XFA. The process does not properly validate the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process.
ADDITIONAL DETAILS Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb17-24.html
DISCLOSURE TIMELINE
  • 2017-04-10 - Vulnerability reported to vendor
  • 2017-08-08 - Coordinated public release of advisory
CREDIT Anonymous
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