Advisory Details

November 14th, 2017

Foxit Reader XFA Nodes append Type Confusion Remote Code Execution Vulnerability

ZDI-17-871
ZDI-CAN-5019

CVE ID CVE-2017-14827
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS Reader
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 29552. 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 Foxit 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 append method of XFA Node objects. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code under the context of the current process.

ADDITIONAL DETAILS Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxitsoftware.com/support/security-bulletins.php
DISCLOSURE TIMELINE
  • 2017-08-04 - Vulnerability reported to vendor
  • 2017-11-14 - Coordinated public release of advisory
CREDIT Steven Seeley (mr_me) of Offensive Security
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