CVE-2019-16913

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 v3.1

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

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

0.42% chance of exploitation in the next 30 days, 35th percentile

Published

2019-10-07

Updated

2024-08-05

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2019-16909
• CVE-2019-16917
• CVE-2019-16908
• CVE-2019-16920
• CVE-2019-16907
• CVE-2019-16931