janus: Enable systemd sandboxing

Helps #299.

Tests:

- janus functional tests pass.

- Sandbox coverage for janus is 81%.

Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>
This commit is contained in:
James Valleroy 2022-09-20 13:08:05 -04:00 committed by Sunil Mohan Adapa
parent b4225a305a
commit 43532e8349

View File

@ -0,0 +1,25 @@
[Service]
CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SETUID CAP_SETGID CAP_SETPCAP CAP_CHOWN CAP_FSETID CAP_SETFCAP CAP_DAC_OVERRIDE CAP_DAC_READ_SEARCH CAP_FOWNER CAP_IPC_OWNER CAP_NET_ADMIN CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE CAP_KILL CAP_NET_BIND_SERVICE CAP_NET_RAW CAP_LINUX_IMMUTABLE CAP_IPC_LOCK CAP_SYS_CHROOT CAP_BLOCK_SUSPEND CAP_LEASE CAP_SYS_PACCT CAP_SYS_TTY_CONFIG CAP_SYS_BOOT CAP_MAC_ADMIN CAP_MAC_OVERRIDE CAP_SYS_NICE CAP_SYS_RESOURCE
LockPersonality=yes
MemoryDenyWriteExecute=yes
NoNewPrivileges=yes
PrivateDevices=yes
PrivateMounts=yes
PrivateTmp=yes
ProtectControlGroups=yes
ProtectClock=yes
ProtectHome=yes
ProtectHostname=yes
ProtectKernelLogs=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
ProtectSystem=strict
RestrictAddressFamilies=AF_INET AF_INET6
RestrictNamespaces=yes
RestrictRealtime=yes
RestrictSUIDSGID=yes
SystemCallArchitectures=native
SystemCallFilter=@system-service
SystemCallFilter=~@resources
SystemCallFilter=~@privileged
SystemCallErrorNumber=EPERM