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nixos/babeld: lock down service

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→ Overall exposure level for babeld.service: 2.2 OK 🙂
This commit is contained in:
Martin Weinelt 2020-09-18 01:53:52 +02:00
parent e25cd7827e
commit c821e0d4be
1 changed files with 31 additions and 3 deletions
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34
nixos/modules/services/networking/babeld.nix
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@ -87,9 +87,37 @@ in
description = "Babel routing daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig.ExecStart = "${pkgs.babeld}/bin/babeld -c ${configFile}";
serviceConfig = {
ExecStart = "${pkgs.babeld}/bin/babeld -c ${configFile} -I /run/babeld/babeld.pid -S /var/lib/babeld/state";
CapabilityBoundingSet = [ "CAP_NET_ADMIN" ];
IPAddressAllow = [ "fe80::/64" "ff00::/8" "::1/128" "127.0.0.0/8" ];
IPAddressDeny = "any";
LockPersonality = true;
NoNewPrivileges = true;
MemoryDenyWriteExecute = true;
ProtectSystem = "strict";
ProtectClock = true;
ProtectKernelTunables = false; # Couldn't write sysctl: Read-only file system
ProtectKernelModules = true;
ProtectKernelLogs = true;
ProtectControlGroups = true;
RestrictAddressFamilies = [ "AF_NETLINK" "AF_INET6" ];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
RemoveIPC = true;
ProtectHome = true;
ProtectHostname = true;
PrivateMounts = true;
PrivateTmp = true;
PrivateDevices = true;
PrivateUsers = false; # kernel_route(ADD): Operation not permitted
SystemCallArchitectures = "native";
SystemCallFilter = [ "@system-service" ];
UMask = "0177";
RuntimeDirectory = "babeld";
StateDirectory = "babeld";
};
};
};
}