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Battle.Net 1.5.0.7963 Local Privilege Escalation

Posted on 30 November -0001

<HTML><HEAD><TITLE>Battle.Net 1.5.0.7963 Local Privilege Escalation</TITLE><META http-equiv="Content-Type" content="text/html; charset=utf-8"></HEAD><BODY># 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 FilesBattle.net BUILTINUsers:(OI)(CI)F
                            BUILTINAdministrators:(OI)(CI)F
                            CREATOR OWNER:(OI)(CI)F
 
 
C:Program Files>cacls "Diablo III"
C:Program FilesDiablo III BUILTINUsers:(OI)(CI)F
                            BUILTINAdministrators:(OI)(CI)F
                            CREATOR OWNER:(OI)(CI)F
 
 
C:Program Files>cacls "StarCraft II"
C:Program FilesStarCraft II BUILTINUsers:(OI)(CI)F
                              BUILTINAdministrators:(OI)(CI)F
                              CREATOR OWNER:(OI)(CI)F
 
 
C:Program Files>cacls Hearthstone
C:Program FilesHearthstone BUILTINUsers:(OI)(CI)F
                             BUILTINAdministrators:(OI)(CI)F
                             CREATOR OWNER:(OI)(CI)F
 
 
C:Program Files>cacls "Heroes of the Storm"
C:Program FilesHeroes of the Storm BUILTINUsers:(OI)(CI)F
                                     BUILTINAdministrators:(OI)(CI)F
                                     CREATOR OWNER:(OI)(CI)F
 
C:Program Files (x86)>cacls "World of Warcraft"
C:Program Files (x86)World of Warcraft BUILTINUsers:(OI)(CI)F
                                         BUILTINAdministrators:(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.
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