Privacyware Privatefirewall 7.0 – Unquoted Service Path Privilege Escalation
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 users 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 : 10 WIN32_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 -- |