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Date: Sat, 29 Apr 2017 13:51:05 +0200 From: "Securify B.V." <lists@...urify.nl> To: fulldisclosure@...lists.org Subject: [FD] Local privilege escalation vulnerability in HideMyAss Pro VPN client v3.x for macOS ------------------------------------------------------------------------ Local privilege escalation vulnerability in HideMyAss Pro VPN client v3.x for macOS ------------------------------------------------------------------------ Han Sahin, April 2017 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ A local privilege escalation vulnerability has been found in the helper binary com.privax.hmaprovpn.helper that ships with HideMyAss Pro VPN v3.3.0.3 for macOS. The helper is installed setuid root and uses the openvpn binary to create VPN profiles and connections. The helper fails to perform signature check's on the openvpn file, which is owned by the user that installed the client. This allows malware on the system to replace the openvpn binary and run arbitrary code as root. ------------------------------------------------------------------------ Tested versions ------------------------------------------------------------------------ This issue was tested on HideMyAss Pro VPN v3.3.0.3 for macOS. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ There is currently no fix available. ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ https://www.securify.nl/advisory/SFY20170408/local_privilege_escalation_vulnerability_in_hidemyass_pro_vpn_client_v3_x_for_macos.html _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
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