From 56b8633a6b23a81496401c8bbbcc04b25ebf19b2 Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Tue, 15 Aug 2023 19:37:46 +0200 Subject: selinux: Update policy to fix user/group settings Somehow most of this used to work on older kernels, but now we need to explicitly permit setuid, setgid, and setcap capabilities, as well as read-only access to passwd (as we support running under a given login name) and sssd library facilities. Signed-off-by: Stefano Brivio --- contrib/selinux/passt.te | 9 +++++++-- contrib/selinux/pasta.te | 8 ++++++-- 2 files changed, 13 insertions(+), 4 deletions(-) (limited to 'contrib') diff --git a/contrib/selinux/passt.te b/contrib/selinux/passt.te index 5868a41..507fc89 100644 --- a/contrib/selinux/passt.te +++ b/contrib/selinux/passt.te @@ -47,9 +47,11 @@ require { type port_t; type http_port_t; + type passwd_file_t; + class netlink_route_socket { bind create nlmsg_read }; - class capability sys_tty_config; + class capability { sys_tty_config setuid setgid }; class cap_userns { setpcap sys_admin sys_ptrace }; class user_namespace create; } @@ -89,10 +91,13 @@ logging_send_syslog_msg(passt_t) allow syslogd_t self:cap_userns sys_ptrace; allow passt_t self:process setcap; -allow passt_t self:capability { sys_tty_config setpcap net_bind_service }; +allow passt_t self:capability { sys_tty_config setpcap net_bind_service setuid setgid}; allow passt_t self:cap_userns { setpcap sys_admin sys_ptrace }; allow passt_t self:user_namespace create; +allow passt_t passwd_file_t:file read_file_perms; +sssd_search_lib(passt_t) + allow passt_t proc_net_t:file read; allow passt_t net_conf_t:file { open read }; allow passt_t net_conf_t:lnk_file read; diff --git a/contrib/selinux/pasta.te b/contrib/selinux/pasta.te index 645ccee..ee82b0f 100644 --- a/contrib/selinux/pasta.te +++ b/contrib/selinux/pasta.te @@ -79,6 +79,7 @@ require { type shell_exec_t; type init_t; + class capability { sys_tty_config setuid setgid }; class cap_userns { setpcap sys_admin sys_ptrace net_bind_service net_admin }; class user_namespace create; } @@ -103,10 +104,13 @@ allow unconfined_t pasta_t : process transition ; init_daemon_domain(pasta_t, pasta_exec_t) -allow pasta_t self:capability { setpcap net_bind_service sys_tty_config dac_read_search net_admin sys_resource }; +allow pasta_t self:capability { setpcap net_bind_service sys_tty_config dac_read_search net_admin sys_resource setuid setgid }; allow pasta_t self:cap_userns { setpcap sys_admin sys_ptrace net_admin net_bind_service }; allow pasta_t self:user_namespace create; +allow pasta_t passwd_file_t:file read_file_perms; +sssd_search_lib(pasta_t) + allow pasta_t bin_t:file { execute execute_no_trans map }; allow pasta_t nsfs_t:file { open read }; @@ -162,7 +166,7 @@ allow pasta_t unconfined_t:dir search; allow pasta_t unconfined_t:file read; allow pasta_t unconfined_t:lnk_file read; allow pasta_t passwd_file_t:file { getattr open read }; -allow pasta_t self:process setpgid; +allow pasta_t self:process { setpgid setcap }; allow pasta_t shell_exec_t:file { execute execute_no_trans map }; allow pasta_t sssd_var_lib_t:dir search; -- cgit v1.2.3