Cobian Backup Gravity version 188.8.131.522 suffers from an unquoted service path vulnerability.
# Exploit Title: Cobian Backup Gravity 184.108.40.2062 - 'CobianBackup11' Unquoted Service Path
# Discovery by: Luis Martinez
# Discovery Date: 2022-02-24
# Vendor Homepage: https://www.cobiansoft.com/
# Software Link : https://files.cobiansoft.com/programs/cbSetup.exe
# Tested Version: 220.127.116.112
# Vulnerability Type: Unquoted Service Path
# Tested on OS: Windows 10 Pro x64 es
# Step to discover Unquoted Service Path:
C:>wmic service get name, pathname, displayname, startmode | findstr "Auto" | findstr /i /v "C:Windows" | findstr /i "Gravity " | findstr /i /v """
Cobian Backup 11 Gravity CobianBackup11 C:Program Files (x86)Cobian Backup 11cbService.exe Auto
# Service info:
C:>sc qc CobianBackup11
[SC] QueryServiceConfig SUCCESS
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:Program Files (x86)Cobian Backup 11cbService.exe
TAG : 0
DISPLAY_NAME : Cobian Backup 11 Gravity
SERVICE_START_NAME : LocalSystem
A successful attempt would require the local user to be able to insert their code in the system root path undetected by the OS or other security applications where it could potentially be executed during application startup or reboot. If successful, the local user's code would execute with the elevated privileges of the application.