SRC-2019-0002 : Foxit Reader SDK ActiveX Pro TextBox Field Validate Use-After-Free Remote Code Execution Vulnerability

CVE ID:

CVE-2018-19444

CVSS Score:

7.5, (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

Affected Vendors:

Foxit

Affected Products:

Foxit Reader SDK ActiveX Pro

Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader SDK ActiveX Pro. 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 Validate events on fields. 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 in the context of the current process.

Vendor Response:

Foxit has issued an update to correct these vulnerabilities. More details can be found at:
https://www.foxitsoftware.com/support/security-bulletins.php

Disclosure Timeline:

• 2018-11-20 - Vulnerability reported to Foxit
• 2019-01-08 - Coordinated public release of advisory

Credit:

This vulnerability was discovered by Steven Seeley (mr_me) of Source Incite