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Samsung SW Update Service Privilege Escalation Vulnerability
[# Exploit Title: Samsung SW Update Service Unquoted Service Path Privilege Escalation # Date: 04/10/2016 # Author: Yunus YILDIRIM (Th3GundY) # Team: CT-Zer0 (@CRYPTTECH) && Superbug (@xsuperbug) # Website: http://yildirimyunus.com # Contact: yunusyildirim@protonmail.com # Category: local # Vendor Homepage: http://www.samsung.com # Software Link: http://downloadcenter.samsung.com/content/SW/201608/20160825024052515/SWUpdate_2.2.8.28.ZIP # Version: Affected Software Version < 2.2.8.30 # Tested on: Windows 7 x86/x64 & Windows 10 x64/x86 1. Description Samsung Software Update Service, SWUpdateService (SWMAgent.exe), installs as a service 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 of Concept C:\>sc qc SWUpdateService [SC] QueryServiceConfig SUCCESS SERVICE_NAME: SWUpdateService TYPE : 110 WIN32_OWN_PROCESS (interactive) START_TYPE : 2 AUTO_START ERROR_CONTROL : 1 NORMAL BINARY_PATH_NAME : C:\ProgramData\Samsung\SW Update Service\SWMAgent.exe /SERVICE LOAD_ORDER_GROUP : TAG : 0 DISPLAY_NAME : SW Update Service DEPENDENCIES : SERVICE_START_NAME : LocalSystem 3. Exploit: A successful attempt would require the local attacker must insert an executable file in the path of the service. Upon service restart or system reboot, the malicious code will be run with elevated privileges. Vulnerability Disclosure Timeline: ========================= 04/10/2016 - Contact With Vendor 04/10/2016 - Vendor Response 18/10/2016 - Release Fixed Version Additional notes : ========================= Fixed version 2.2.8.30 # 0day.today [2024-11-15] #