CVE-2019-16913 Information

Description

PC Protect Antivirus v4.14.31 installs by default to PROGRAMFILES(X86)\PCProtect with very weak folder permissions granting any user full permission \Everyone: (F)\ to the contents of the directory and its subfolders. In addition the program installs a service called SecurityService that runs as LocalSystem. This allows any user to escalate privileges to \NT AUTHORITY\SYSTEM\ by substituting the service’s binary with a Trojan horse.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://flipflopsecurity.wordpress.com/2019/10/07/pc-protect-v4-14-31-privilege-esclation/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8