From 1c15b60480a5b8c7befd03146d07d7593b5a3210 Mon Sep 17 00:00:00 2001 From: ericgaspar Date: Tue, 7 Sep 2021 09:08:50 +0200 Subject: [PATCH] Update systemd.service --- conf/systemd.service | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/conf/systemd.service b/conf/systemd.service index d804274..3cd1b26 100644 --- a/conf/systemd.service +++ b/conf/systemd.service @@ -11,5 +11,35 @@ Group=__APP__ ExecStart=__FINALPATH__/galene -turn __PUBLIC_IP4__:__TURN_PORT__ -udp-range 49152-65535 -groups /home/yunohost.app/__APP__/groups -recordings /home/yunohost.app/__APP__/recordings LimitNOFILE=65536 +# Sandboxing options to harden security +# Depending on specificities of your service/app, you may need to tweak these +# .. but this should be a good baseline +# Details for these options: https://www.freedesktop.org/software/systemd/man/systemd.exec.html +NoNewPrivileges=yes +PrivateTmp=yes +PrivateDevices=yes +RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 +RestrictNamespaces=yes +RestrictRealtime=yes +DevicePolicy=closed +ProtectSystem=full +ProtectControlGroups=yes +ProtectKernelModules=yes +ProtectKernelTunables=yes +LockPersonality=yes +SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap + +# Denying access to capabilities that should not be relevant for webapps +# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html +CapabilityBoundingSet=~CAP_RAWIO CAP_MKNOD +CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE +CapabilityBoundingSet=~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT +CapabilityBoundingSet=~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK +CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM +CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG +CapabilityBoundingSet=~CAP_MAC_ADMIN CAP_MAC_OVERRIDE +CapabilityBoundingSet=~CAP_NET_ADMIN CAP_NET_BROADCAST CAP_NET_RAW +CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG + [Install] WantedBy=multi-user.target