Advisory Details

October 11th, 2018

Foxit PhantomPDF fillColor Use-After-Free Remote Code Execution Vulnerability

ZDI-18-1205
ZDI-CAN-7070

CVE ID CVE-2018-17689
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS PhantomPDF
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit PhantomPDF. 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 fillColor property of a radio button. 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.

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
  • 2018-08-10 - Vulnerability reported to vendor
  • 2018-10-11 - Coordinated public release of advisory
CREDIT Anonymous
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