Vulnerability Details

IPVanish for MacOS suffers from a root privilege escalation vulnerability. The com.ipvanish.osx.vpnhelper LaunchDaemon implements an insecure XPC service that could allow an attacker to execute arbitrary code as the root user. IPVanish uses a third-party library for converting xpc_object_t types in to NSObject types for sending XPC messages. When IPVanish establishes a new connection the following XPC message is sent to the com.ipvanish.osx.vpnhelper LaunchDaemon. Because the XPC service itself does not validate incoming connection, this means any application installed on the operating system can send it XPC messages. In the case of the "connect" message, an attacker could manipulate the OpenVPNPath to point at a malicious binary on the system. The com.ipvanish.osx.vpnhelper would receive the VPNHelperConnect command, then execute the malicious binary as the root user.

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