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services/vouch-proxy: add some more hardening options

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Gabriel Arazas 2023-10-09 20:46:06 +08:00
parent 2dbb3ed68c
commit 7d55e45f70
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1 changed files with 13 additions and 5 deletions
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18
modules/nixos/services/vouch-proxy.nix
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@ -84,7 +84,12 @@ let
StartLimitInterval = "60s";
StartLimitBurst = 3;
PrivateUsers = true;
PrivateTmp = true;
PrivateDevices = true;
LockPersonality = true;
MemoryDenyWriteExecute = true;
NoNewPrivileges = true;
RestrictSUIDSGID = true;
RestrictRealtime = true;
@ -97,7 +102,14 @@ let
ProtectProc = "invisible";
ProcSubset = "pid";
SystemCallFilter = [ "@system-service" ];
SystemCallFilter = [
"@system-service"
"~@cpu-emulation"
"~@keyring"
"~@module"
"~@privileged"
"~@reboot"
];
SystemCallErrorNumber = "EPERM";
SystemCallArchitectures = "native";
@ -111,13 +123,9 @@ let
# Limit this service to Unix sockets and IPs.
RestrictAddressFamilies = [
"AF_LOCAL"
# The internet class families.
"AF_INET"
"AF_INET6"
];
# Restrict what namespaces it can create which is none.
RestrictNamespaces = true;
};
};