diff options
| -rw-r--r-- | nixos/doc/manual/from_md/release-notes/rl-2211.section.xml | 6 | ||||
| -rw-r--r-- | nixos/doc/manual/release-notes/rl-2211.section.md | 2 | ||||
| -rw-r--r-- | nixos/modules/services/matrix/synapse.nix | 27 |
3 files changed, 35 insertions, 0 deletions
diff --git a/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml index c1b7b096406..9067b3ccf23 100644 --- a/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml +++ b/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml @@ -467,6 +467,12 @@ </listitem> <listitem> <para> + The <literal>services.matrix-synapse</literal> systemd unit + has been hardened. + </para> + </listitem> + <listitem> + <para> Matrix Synapse now requires entries in the <literal>state_group_edges</literal> table to be unique, in order to prevent accidentally introducing duplicate diff --git a/nixos/doc/manual/release-notes/rl-2211.section.md b/nixos/doc/manual/release-notes/rl-2211.section.md index 97775b51c15..6d3b5a1bc7b 100644 --- a/nixos/doc/manual/release-notes/rl-2211.section.md +++ b/nixos/doc/manual/release-notes/rl-2211.section.md @@ -162,6 +162,8 @@ Use `configure.packages` instead. - Neo4j was updated from version 3 to version 4. See this [migration guide](https://neo4j.com/docs/upgrade-migration-guide/current/) on how to migrate your Neo4j instance. +- The `services.matrix-synapse` systemd unit has been hardened. + - Matrix Synapse now requires entries in the `state_group_edges` table to be unique, in order to prevent accidentally introducing duplicate information (for example, because a database backup was restored multiple times). If your Synapse database already has duplicate rows in this table, this could fail with an error and require manual remediation. - The `diamond` package has been update from 0.8.36 to 2.0.15. See the [upstream release notes](https://github.com/bbuchfink/diamond/releases) for more details. diff --git a/nixos/modules/services/matrix/synapse.nix b/nixos/modules/services/matrix/synapse.nix index a40ed93b4a6..34d4e6c4204 100644 --- a/nixos/modules/services/matrix/synapse.nix +++ b/nixos/modules/services/matrix/synapse.nix @@ -759,6 +759,33 @@ in { ExecReload = "${pkgs.util-linux}/bin/kill -HUP $MAINPID"; Restart = "on-failure"; UMask = "0077"; + + # Security Hardening + # Refer to systemd.exec(5) for option descriptions. + CapabilityBoundingSet = [ "" ]; + LockPersonality = true; + NoNewPrivileges = true; + PrivateDevices = true; + PrivateTmp = true; + PrivateUsers = true; + ProcSubset = "pid"; + ProtectClock = true; + ProtectControlGroups = true; + ProtectHome = true; + ProtectHostname = true; + ProtectKernelLogs = true; + ProtectKernelModules = true; + ProtectKernelTunables = true; + ProtectProc = "invisible"; + ProtectSystem = "strict"; + ReadWritePaths = [ cfg.dataDir ]; + RemoveIPC = true; + RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ]; + RestrictNamespaces = true; + RestrictRealtime = true; + RestrictSUIDSGID = true; + SystemCallArchitectures = "native"; + SystemCallFilter = [ "@system-service" "~@resources" "~@privileged" ]; }; }; |