Cliente VPN conecta usuários sem permissão de acesso de conexão P2S

Alex Negreiros 60 Pontos de reputação
2024-10-28T14:40:13.6766667+00:00

VPN client connects users without P2S connection access permission

Good morning everyone!

I have a P2S VPN configured with OpenVPN.

When I connect, through the Azure VPN client, with a user not included in "users and groups" in the Azure VPN Enterprise App, it shows as "connected", even though it does not allow me access to any resources of the Subscription.

I would like to know if this is the expected behavior. Should the user appear as connected, even without access to the resources?

Thanks in advance.

Alex Negreiros

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  1. Dio Xavier 1,115 Pontos de reputação
    2024-10-28T18:52:28.36+00:00

    Welcome to Microsoft Q&A

    Good morning, Alex.

    Yes, this is expected behavior. In an Azure Point-to-Site (P2S) VPN configuration using OpenVPN, the VPN client connection process is separate from resource access verification. When a user who is not listed in the Azure VPN Enterprise Application attempts to connect, the VPN client still establishes a connection and displays a "connected" status. However, since the user lacks configured permissions to access Subscription resources, they will be unable to access any resources.

    This behavior occurs because the "connected" status merely indicates that the VPN tunnel has been successfully established. Effective access control to resources depends on permissions set in Azure AD and the Subscription's Role-Based Access Control (RBAC), which govern which users can access specific resources after establishing a VPN connection.

    If you wish to block the initial connection entirely, it is advisable to review authentication policies in Azure AD or utilize Conditional Access to enforce access restrictions prior to the VPN connection being established.

    I hope this clarifies the issue.

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  1. Alex Negreiros 60 Pontos de reputação
    2024-10-30T19:03:13.2066667+00:00

    Thanks for your help, Dio Xavier!

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