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Fortitude HTTP 1.0.4.0 Privilege Escalation

Fortitude HTTP 1.0.4.0 Privilege Escalation
Posted Oct 6, 2016
Authored by Tulpa

Fortitude HTTP version 1.0.4.0 suffers from an unquoted service path privilege escalation vulnerability.

tags | exploit, web
MD5 | cdd12688531c80a04bd6ed7da81002bc

Fortitude HTTP 1.0.4.0 Privilege Escalation

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# Exploit Title: Fortitude HTTP 1.0.4.0 Unquoted Service Path Elevation of Privilege
# Date: 05/10/2016
# Exploit Author: Tulpa
# Contact: tulpa@tulpa-security.com
# Author website: www.tulpa-security.com
# Author twitter: @tulpa_security
# Vendor Homepage: http://www.networkdls.com/
# Software Link: http://www.networkdls.com/Software/View/Fortitude_HTTP
# Version: Software Version 1.0.4.0
# Tested on: Windows 7 x86
# Shout-out to carbonated and ozzie_offsec

1. Description:

Netgear Genie installs a service called 'Fortitude HTTP' with an unquoted service path

running with SYSTEM privileges.
This could potentially allow an authorized but non-privileged local
user to execute arbitrary code with elevated privileges on the system.

2. Proof

C:\Program Files>sc qc "Fortitude HTTP"
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: Fortitude HTTP
TYPE : 110 WIN32_OWN_PROCESS (interactive)
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files\NetworkDLS\Fortitude HTTP\Bin
\FortitudeSvc.exe /RunService
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : NetworkDLS Fortitude HTTP
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem


3. Exploit:

A successful attempt would require the local user to be able to insert their
code in the system root path undetected by the OS or other security applications
where it could potentially be executed during application startup or reboot.
If successful, the local user's code would execute with the elevated privileges
of the application.

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