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NordVPN 3.3.10 for macOS suffers from a root privilege escalation vulnerability. The vulnerability stems from its privileged helper tool's implemented XPC service. This XPC service is responsible for receiving and processing new OpenVPN connection requests from the main application. Unfortunately this XPC service is not protected, which allows arbitrary applications to connect and send it XPC messages. An attacker can send a crafted XPC message to the privileged helper tool requesting it make a new OpenVPN connection. Because he or she controls the contents of the XPC message, the attacker can specify the location of the openvpn executable, which could point to something malicious they control located on disk. Without validation of the openvpn executable, this will give the attacker code execution in the context of the privileged helper tool.

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NordVPN for macOS privileged helper tool 权限许可和访问控制问题漏洞

NordVPN for macOS是一款基于macOS平台的VPN软件。privileged helper tool是其中的一个帮助工具。 基于macOS平台的NordVPN 3.3.10版本中的privileged helper tool的implemented XPC service存在提权漏洞。攻击者可通过发送特制的XPC消息利用该漏洞执行代码。

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