Privacyware Privatefirewall 7.0 – Unquoted Service Path Privilege Escalation

• Exploit Database
• 13 阅读

• 作者： LiquidWorm
  日期： 2014-11-22
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/35322/

• Privacyware Privatefirewall 7.0 Unquoted Service Path Privilege Escalation
  
  
  Vendor: PWI, Inc.
  Product web page: http://www.privacyware.com
  Affected version: 7.0.30.3
  
  
  Summary: Privatefirewall multi-layered endpoint security software protects
  32 and 64 bit Windows desktops and servers from malware and unauthorized use.
  Personal firewall, packet inspection, URL filtering, anti-logger, process
  monitor, and application/system behavior modeling and anomaly detection
  components stop hackers, spyware, viruses and other forms of malware before
  they can cause damage.
  
  Desc: Privatefirewall suffers from an unquoted search path issue impacting
  the Core Service 'PFNet' service for Windows deployed as part of Privatefirewall
  bundle. This could potentially allow an authorized but non-privileged local
  user to execute arbitrary code with elevated privileges on the system. 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.
  
  Tested on: Microsoft Windows 7 Professional SP1 (EN)
   Microsoft Windows 7 Ultimate SP1 (EN)
  
  
  Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  @zeroscience
  
  
  Advisory ID: ZSL-2014-5209
  Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5209.php
  
  
  09.11.2014
  
  ---
  
  
  C:\Users\user>sc qc PFNet
  [SC] QueryServiceConfig SUCCESS
  
  SERVICE_NAME: PFNet
  TYPE : 10WIN32_OWN_PROCESS
  START_TYPE : 2 AUTO_START
  ERROR_CONTROL: 1 NORMAL
  BINARY_PATH_NAME : C:\Program Files (x86)\Privacyware\Privatefirewall 7.0\pfsvc.exe
  LOAD_ORDER_GROUP : TDI
  TAG: 0
  DISPLAY_NAME : Privacyware network service
  DEPENDENCIES : RpcSs
  SERVICE_START_NAME : LocalSystem
  
  
  --
  
  C:\Users\user>icacls "C:\Program Files (x86)\Privacyware\Privatefirewall 7.0\pfsvc.exe"
  C:\Program Files (x86)\Privacyware\Privatefirewall 7.0\pfsvc.exe NT AUTHORITY\SYSTEM:(I)(F)
   BUILTIN\Administrators:(I)(F)
   BUILTIN\Users:(I)(RX)
  
  Successfully processed 1 files; Failed processing 0 files
  
  
  --