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Merge pull request #173109 from Mic92/upterm

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nixos/upterm: additional hardening
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Jörg Thalheim 2022-05-19 20:16:13 +01:00 • committed by GitHub
commit e56ae50ed9
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2 changed files with 9 additions and 3 deletions
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5
nixos/modules/services/networking/uptermd.nix
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@ -85,6 +85,7 @@ in
AmbientCapabilities = mkIf (cfg.port < 1024) [ "CAP_NET_BIND_SERVICE" ];
CapabilityBoundingSet = mkIf (cfg.port < 1024) [ "CAP_NET_BIND_SERVICE" ];
PrivateUsers = cfg.port >= 1024;
DynamicUser = true;
LockPersonality = true;
MemoryDenyWriteExecute = true;
PrivateDevices = true;
@ -95,7 +96,9 @@ in
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
ProtectProc = "invisible";
# AF_UNIX is for ssh-keygen, which relies on nscd to resolve the uid to a user
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
RestrictNamespaces = true;
RestrictRealtime = true;
SystemCallArchitectures = "native";