Advisory Details

August 1st, 2017

(Pwn2Own) Adobe Reader DC Collab documentToStream Use-After-Free Remote Code Execution Vulnerability

ZDI-17-282
ZDI-CAN-4589

CVE ID CVE-2017-3057
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 ['27521']. 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 Collab.documentToStream method. By manipulating a document's elements an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute arbitrary code under the context of the 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/apsb17-11.html
DISCLOSURE TIMELINE
  • 2017-03-19 - Vulnerability reported to vendor
  • 2017-08-01 - Coordinated public release of advisory
CREDIT willj from Tencent PC Manager
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