Foxit Reader Global setPersistent Use-After-Free Remote Code Execution Vulnerability

2016-01-25T00:00:00
ID ZDI-16-025
Type zdi
Reporter AbdulAziz Hariri - HPE Zero Day Initiative
Modified 2016-11-09T00:00:00

Description

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 global.setPersistent method. While attempting to save a global variable, setPersistent can force a dangling pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.