Executive Summary

This vulnerability exists in the Sliver command and control framework's custom Wireguard netstack in versions 1.5.43 and earlier, and in development version 1.6.0-dev. The netstack does not restrict traffic between Wireguard clients, allowing them to communicate with each other without limitations. This can lead to leaked or recovered keypairs being used to attack operators or allow port forwardings to be accessed from other implants.

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Impact Analysis

The vulnerability can impact you by enabling unauthorized communication between Wireguard clients, which may lead to attackers using leaked or recovered keypairs to compromise operators. Additionally, port forwardings could be accessed from other implants, potentially exposing internal network resources or enabling further attacks.

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