Is this a security backdoor?

pe flag

I just realised nmcli commands don't ask me password for sudo access, but ends up modifying a file under /etc/NetworkManager/system-connections/ which is root-only access.

How is this allowed? What's the mechanism that makes a process change a file that the user doesn't have access to?

Details are, I've got a vpn connection, let's say my-vpn, and run for example:

nmcli c modify my-vpn +ipv4.dns

and the /etc/NetworkManager/system-connections/my-vpn file is modified to include the dns.

hr flag
The authentication mechanism is likely [PolicyKit]( See for example [How can non-admin users connect to Wi-Fi networks?]( Members of `unix-group:sudo` group are given `localauthority` by default.
us flag

No it is not.


All users at the console can manage Ethernet, wireless and 3G networks using Network Manager via DBus. (Ref.: /etc/dbus-1/system.d/NetworkManager.conf, /etc/dbus-1/system.d/nm-applet.conf)


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