nixos/unifi: harden service

Co-authored-by: Vincent Haupert <mail@vincent-haupert.de>
2021-05-30 15:14:00 +02:00
parent aa8c68053a
commit f552bd52b5
1 changed files with 35 additions and 0 deletions
@@ -173,6 +173,41 @@ in
        User = "unifi";
        UMask = "0077";
        WorkingDirectory = "${stateDir}";
+
+        # Hardening
+        AmbientCapabilities = "";
+        CapabilityBoundingSet = "";
+        # ProtectClock= adds DeviceAllow=char-rtc r
+        DeviceAllow = "";
+        DevicePolicy = "closed";
+        LockPersonality = true;
+        NoNewPrivileges = true;
+        PrivateDevices = true;
+        PrivateMounts = true;
+        PrivateTmp = true;
+        PrivateUsers = true;
+        ProtectClock = true;
+        ProtectControlGroups = true;
+        ProtectHome = true;
+        ProtectHostname = true;
+        ProtectKernelLogs = true;
+        ProtectKernelModules = true;
+        ProtectKernelTunables = true;
+        ProtectSystem = "strict";
+        RemoveIPC = true;
+        RestrictNamespaces = true;
+        RestrictRealtime = true;
+        RestrictSUIDSGID = true;
+        SystemCallErrorNumber = "EPERM";
+        SystemCallFilter = [ "@system-service" ];
+
+        # Required for ProtectSystem=strict
+        BindPaths = [ stateDir ];
+
+        # Needs network access
+        PrivateNetwork = false;
+        # Cannot be true due to OpenJDK
+        MemoryDenyWriteExecute = false;
      };
    };