Advisory Details

September 29th, 2020

Foxit PhantomPDF Update Service Incorrect Permission Assignment Privilege Escalation Vulnerability

CVE ID	CVE-2020-17415
CVSS SCORE	7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Foxit
AFFECTED PRODUCTS	PhantomPDF
VULNERABILITY DETAILS	This vulnerability allows local attackers to escalate privileges on affected installations of Foxit PhantomPDF. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the configuration files used by the Foxit PhantomPDF Update Service. The issue results from incorrect permissions set on a resource used by the service. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.
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	2020-06-19 - Vulnerability reported to vendor 2020-09-29 - Coordinated public release of advisory 2020-10-09 - Advisory Updated
CREDIT	Mat Powell of Trend Micro Zero Day Initiative

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