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Nero 7.10.1.0 Privilege Escalation

🗓️ 10 Nov 2016 00:00:00Reported by Boumediene KaddourType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 19 Views

Nero 7 Unquoted Service Path Privilege Escalation Windows

Code
`# Exploit Title: Nero 7 Unquoted Service Path Elevation Of Privilege  
# Disclosure Date: 09/11/2016  
# Exploit Author: Boumediene KADDOUR a.k.a Sh311c0d3r  
# http://www.realistic-security.org  
# Version: Nero version 7.10.1.0  
# Tested on: Windows 7 integral edition FR  
# CVE : N/A  
  
Vulnerability Details:  
=====================  
The nero 7 suffers from an unquoted search path issue impacting the   
service "NBService" leading to arbitrary code execution, this could   
potentially allow an authorized unprivileged user to invoke a malicious   
peice of code with elevated privileges.  
A successful exploit requires a local user to put its own code in the   
path of the vulnerable application where it could potentially be   
executed during the software startup or system reboot.  
  
PoC  
--   
[PentestingSkills.BlackBox] a$? sc qc NBService  
[SC] QueryServiceConfig rA(c)ussite(s)  
  
SERVICE_NAME: NBService  
TYPE : 10 WIN32_OWN_PROCESS  
START_TYPE : 3 DEMAND_START  
ERROR_CONTROL : 1 NORMAL  
BINARY_PATH_NAME : C:\Program Files (x86)\Nero\Nero 7\Nero   
BackItUp\NBService.exe  
LOAD_ORDER_GROUP :  
TAG : 0  
DISPLAY_NAME : NBService  
DEPENDENCIES : RPCSS  
SERVICE_START_NAME : LocalSystem  
  
notice the path C:\Program Files (x86)\Nero\Nero 7\Nero   
BackItUp\NBService.exe unquoted !!  
a malicious local user could put in place its own executable as Nero.exe   
under C:\Program Files (x86)\Nero\ to be then executed once the   
application starts up or the system reboots.  
  
sh311c0d3r  
`

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