Foxit Reader Annotations modDate Use-After-Free Remote Code Execution Vulnerability

November 14th, 2017

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 modDate attribute of Annotation objects. The issue results from the lack of validating 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

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

  • 2017-08-08 - Vulnerability reported to vendor
  • 2017-11-14 - Coordinated public release of advisory

Credit

Steven Seeley (mr_me) of Offensive Security

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