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selinux: Update policy to fix user/group settings

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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 <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2023-08-15 19:37:46 +02:00
parent 62059058cf
commit 56b8633a6b
2 changed files with 13 additions and 4 deletions
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9
contrib/selinux/passt.te
View file

@ -47,9 +47,11 @@ require {
type port_t; type port_t;
type http_port_t; type http_port_t;
type passwd_file_t;
class netlink_route_socket { bind create nlmsg_read }; 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 cap_userns { setpcap sys_admin sys_ptrace };
class user_namespace create; class user_namespace create;
} }
@ -89,10 +91,13 @@ logging_send_syslog_msg(passt_t)
allow syslogd_t self:cap_userns sys_ptrace; allow syslogd_t self:cap_userns sys_ptrace;
allow passt_t self:process setcap; 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:cap_userns { setpcap sys_admin sys_ptrace };
allow passt_t self:user_namespace create; 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 proc_net_t:file read;
allow passt_t net_conf_t:file { open read }; allow passt_t net_conf_t:file { open read };
allow passt_t net_conf_t:lnk_file read; allow passt_t net_conf_t:lnk_file read;

8
contrib/selinux/pasta.te
View file

@ -79,6 +79,7 @@ require {
type shell_exec_t; type shell_exec_t;
type init_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 cap_userns { setpcap sys_admin sys_ptrace net_bind_service net_admin };
class user_namespace create; class user_namespace create;
} }
@ -103,10 +104,13 @@ allow unconfined_t pasta_t : process transition ;
init_daemon_domain(pasta_t, pasta_exec_t) 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:cap_userns { setpcap sys_admin sys_ptrace net_admin net_bind_service };
allow pasta_t self:user_namespace create; 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 bin_t:file { execute execute_no_trans map };
allow pasta_t nsfs_t:file { open read }; 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:file read;
allow pasta_t unconfined_t:lnk_file read; allow pasta_t unconfined_t:lnk_file read;
allow pasta_t passwd_file_t:file { getattr open 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 shell_exec_t:file { execute execute_no_trans map };
allow pasta_t sssd_var_lib_t:dir search; allow pasta_t sssd_var_lib_t:dir search;