Battle.Net 1.5.0.7963 Local Privilege Escalation

vendor:

Battle.Net

by:

Tulpa

7.5

CVSS

HIGH

Local Privilege Escalation

269

CWE

Product Name: Battle.Net

Affected Version From: 1.5.0.7963

Affected Version To: 1.5.0.7963

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Windows 10 Professional x64, Windows XP SP3 x86

2016

Battle.Net 1.5.0.7963 Local Privilege Escalation

Battle.Net installs with weak folder permissions granting any built-in user account with full permission to the contents of the directory and its subfolders. This allows an attacker an opportunity for their own code execution under any other user running the application.

Mitigation:

Ensure proper folder permissions are set for the Battle.Net directory and its subfolders.

Source

Exploit-DB raw data:

# Exploit Title: Battle.Net 1.5.0.7963 Local Privilege Escalation
# Date: 11/09/2016
# Exploit Author: Tulpa
# Contact: tulpa@tulpa-security.com
# Author website: www.tulpa-security.com
# Vendor Homepage: www.battle.net
# Software Link: https://eu.battle.net/account/download/
# Version: Version 1.5.0.7963
# Tested on: Windows 10 Professional x64 and Windows XP SP3 x86


1. Description:

Battle.Net installs by default to "C:\Program Files (x86)\Battle.Net" with weak folder permissions granting any built-in user account with full permission to the contents of

the directory and it's subfolders. This allows an attacker opportunity for their own code execution under any other user running the application. This is not limited to just

the Battle.Net directory, but also to any of Blizzards game installation folders as installed by Battle.Net.

2. Proof

C:\Program Files>cacls Battle.net
C:\Program Files\Battle.net BUILTIN\Users:(OI)(CI)F
                            BUILTIN\Administrators:(OI)(CI)F
                            CREATOR OWNER:(OI)(CI)F


C:\Program Files>cacls "Diablo III"
C:\Program Files\Diablo III BUILTIN\Users:(OI)(CI)F
                            BUILTIN\Administrators:(OI)(CI)F
                            CREATOR OWNER:(OI)(CI)F


C:\Program Files>cacls "StarCraft II"
C:\Program Files\StarCraft II BUILTIN\Users:(OI)(CI)F
                              BUILTIN\Administrators:(OI)(CI)F
                              CREATOR OWNER:(OI)(CI)F


C:\Program Files>cacls Hearthstone
C:\Program Files\Hearthstone BUILTIN\Users:(OI)(CI)F
                             BUILTIN\Administrators:(OI)(CI)F
                             CREATOR OWNER:(OI)(CI)F


C:\Program Files>cacls "Heroes of the Storm"
C:\Program Files\Heroes of the Storm BUILTIN\Users:(OI)(CI)F
                                     BUILTIN\Administrators:(OI)(CI)F
                                     CREATOR OWNER:(OI)(CI)F

C:\Program Files (x86)>cacls "World of Warcraft"
C:\Program Files (x86)\World of Warcraft BUILTIN\Users:(OI)(CI)F
                                         BUILTIN\Administrators:(OI)(CI)F
                                         CREATOR OWNER:(OI)(CI)F

3. Exploit:

Simply replace any of the game exe's or any of the dll's with your preferred payload and wait for execution.