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nixos/usbguard: update systemd sandboxing features

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Apply upstream systemd service configuration options to improve
sandboxing.
This commit is contained in:
Philipp Bartsch 2020-05-19 21:35:09 +02:00 committed by Bjørn Forsman
parent 2198d015e5
commit 2827491c23
1 changed files with 23 additions and 0 deletions
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23
nixos/modules/services/security/usbguard.nix
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@ -207,6 +207,29 @@ in {
Type = "simple";
ExecStart = ''${cfg.package}/bin/usbguard-daemon -P -k -c ${daemonConfFile}'';
Restart = "on-failure";
AmbientCapabilities = "";
CapabilityBoundingSet = "CAP_CHOWN CAP_FOWNER";
DeviceAllow = "/dev/null rw";
DevicePolicy = "strict";
IPAddressDeny = "any";
LockPersonality = true;
MemoryDenyWriteExecute = true;
NoNewPrivileges = true;
PrivateDevices = true;
PrivateTmp = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectKernelModules = true;
ProtectSystem = true;
ReadOnlyPaths = "-/";
ReadWritePaths = "-/dev/shm -${dirOf cfg.auditFilePath} -/tmp -${dirOf cfg.ruleFile}";
RestrictAddressFamilies = "AF_UNIX AF_NETLINK";
RestrictNamespaces = true;
RestrictRealtime = true;
SystemCallArchitectures = "native";
SystemCallFilter = "@system-service";
UMask = "0077";
};
};
};