439 lines
12 KiB
Plaintext
439 lines
12 KiB
Plaintext
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policy_module(cron,1.2.0)
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gen_require(`
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class passwd rootok;
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')
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########################################
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#
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# Declarations
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#
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attribute cron_spool_type;
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type anacron_exec_t;
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files_type(anacron_exec_t)
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type cron_spool_t;
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files_type(cron_spool_t)
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type crond_t;
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# real declaration moved to mls until
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# range_transition works in loadable modules
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gen_require(`
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type crond_exec_t;
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')
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init_daemon_domain(crond_t,crond_exec_t)
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domain_wide_inherit_fd(crond_t)
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domain_cron_exemption_source(crond_t)
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type crond_tmp_t;
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files_tmp_file(crond_tmp_t)
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type crond_var_run_t;
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files_pid_file(crond_var_run_t)
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type crontab_exec_t;
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files_type(crontab_exec_t)
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type system_cron_spool_t, cron_spool_type;
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files_type(system_cron_spool_t)
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ifdef(`targeted_policy',`
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typealias crond_t alias system_crond_t;
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',`
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type system_crond_t;
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')
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init_daemon_domain(system_crond_t,anacron_exec_t)
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corecmd_shell_entry_type(system_crond_t)
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role system_r types system_crond_t;
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type system_crond_lock_t;
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files_lock_file(system_crond_lock_t)
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type system_crond_tmp_t;
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files_tmp_file(system_crond_tmp_t)
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ifdef(`targeted_policy',`
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type sysadm_cron_spool_t;
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files_type(sysadm_cron_spool_t)
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')
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########################################
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#
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# Cron Local policy
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#
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allow crond_t self:capability { dac_override setgid setuid sys_nice dac_read_search audit_control };
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dontaudit crond_t self:capability { sys_resource sys_tty_config };
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allow crond_t self:process ~{ ptrace setcurrent setexec setfscreate setrlimit execmem execstack execheap };
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allow crond_t self:process { setexec setfscreate };
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allow crond_t self:fd use;
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allow crond_t self:fifo_file rw_file_perms;
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allow crond_t self:unix_dgram_socket create_socket_perms;
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allow crond_t self:unix_stream_socket create_stream_socket_perms;
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allow crond_t self:unix_dgram_socket sendto;
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allow crond_t self:unix_stream_socket connectto;
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allow crond_t self:shm create_shm_perms;
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allow crond_t self:sem create_sem_perms;
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allow crond_t self:msgq create_msgq_perms;
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allow crond_t self:msg { send receive };
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allow crond_t crond_var_run_t:file create_file_perms;
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files_filetrans_pid(crond_t,crond_var_run_t)
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allow crond_t cron_spool_t:dir rw_dir_perms;
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allow crond_t cron_spool_t:file r_file_perms;
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allow crond_t system_cron_spool_t:dir r_dir_perms;
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allow crond_t system_cron_spool_t:file r_file_perms;
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kernel_read_kernel_sysctl(crond_t)
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dev_read_sysfs(crond_t)
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selinux_get_fs_mount(crond_t)
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selinux_validate_context(crond_t)
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selinux_compute_access_vector(crond_t)
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selinux_compute_create_context(crond_t)
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selinux_compute_relabel_context(crond_t)
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selinux_compute_user_contexts(crond_t)
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dev_read_urand(crond_t)
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fs_getattr_all_fs(crond_t)
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fs_search_auto_mountpoints(crond_t)
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term_dontaudit_use_console(crond_t)
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# need auth_chkpwd to check for locked accounts.
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auth_domtrans_chk_passwd(crond_t)
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corecmd_exec_shell(crond_t)
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corecmd_list_sbin(crond_t)
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domain_use_wide_inherit_fd(crond_t)
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files_read_etc_files(crond_t)
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files_read_generic_spools(crond_t)
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files_list_usr(crond_t)
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# Read from /var/spool/cron.
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files_search_var_lib(crond_t)
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files_search_default(crond_t)
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init_use_fd(crond_t)
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init_use_script_pty(crond_t)
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init_rw_utmp(crond_t)
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libs_use_ld_so(crond_t)
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libs_use_shared_libs(crond_t)
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logging_send_syslog_msg(crond_t)
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seutil_read_config(crond_t)
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seutil_read_default_contexts(crond_t)
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seutil_sigchld_newrole(crond_t)
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miscfiles_read_localization(crond_t)
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userdom_use_unpriv_users_fd(crond_t)
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ifdef(`distro_redhat', `
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# Run the rpm program in the rpm_t domain. Allow creation of RPM log files
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# via redirection of standard out.
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optional_policy(`rpm',`
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rpm_manage_log(crond_t)
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')
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')
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ifdef(`targeted_policy',`
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allow crond_t system_crond_tmp_t:dir create_dir_perms;
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allow crond_t system_crond_tmp_t:file create_file_perms;
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allow crond_t system_crond_tmp_t:lnk_file create_lnk_perms;
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allow crond_t system_crond_tmp_t:sock_file create_file_perms;
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allow crond_t system_crond_tmp_t:fifo_file create_file_perms;
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files_filetrans_tmp(crond_t,system_crond_tmp_t,{ dir file lnk_file sock_file fifo_file })
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unconfined_domain_template(crond_t)
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# cjp: fix this to generic_user interfaces
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userdom_manage_user_home_subdirs(user,crond_t)
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userdom_manage_user_home_subdir_files(user,crond_t)
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userdom_manage_user_home_subdir_symlinks(user,crond_t)
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userdom_manage_user_home_subdir_pipes(user,crond_t)
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userdom_manage_user_home_subdir_sockets(user,crond_t)
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userdom_create_user_home(user,crond_t,{ dir file lnk_file fifo_file sock_file })
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allow crond_t unconfined_t:dbus send_msg;
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allow crond_t initrc_t:dbus send_msg;
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',`
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allow crond_t crond_tmp_t:dir create_dir_perms;
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allow crond_t crond_tmp_t:file create_file_perms;
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files_filetrans_tmp(crond_t, crond_tmp_t, { file dir })
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mta_send_mail(crond_t)
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')
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tunable_policy(`fcron_crond', `
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allow crond_t system_cron_spool_t:file create_file_perms;
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')
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optional_policy(`hal',`
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hal_dbus_send(crond_t)
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')
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optional_policy(`nis',`
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nis_use_ypbind(crond_t)
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')
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optional_policy(`nscd',`
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nscd_use_socket(crond_t)
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')
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optional_policy(`rpm',`
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# Commonly used from postinst scripts
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rpm_read_pipe(crond_t)
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')
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optional_policy(`postgresql',`
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# allow crond to find /usr/lib/postgresql/bin/do.maintenance
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postgresql_search_db_dir(crond_t)
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')
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optional_policy(`udev',`
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udev_read_db(crond_t)
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')
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ifdef(`TODO',`
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# NB The constraints file has some entries for crond_t, this makes it
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# different from all other domains...
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# crond tries to search /root. Not sure why.
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allow crond_t sysadm_home_dir_t:dir r_dir_perms;
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ifdef(`apache.te',`
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allow system_crond_t httpd_modules_t:lnk_file read;
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# Needed for certwatch
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can_exec(system_crond_t, httpd_modules_t)
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')
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# to search /home
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allow crond_t user_home_dir_type:dir r_dir_perms;
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') dnl endif TODO
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########################################
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#
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# System cron process domain
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#
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optional_policy(`squid',`
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# cjp: why?
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squid_domtrans(system_crond_t)
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')
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ifdef(`targeted_policy',`
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# cjp: FIXME
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allow crond_t unconfined_t:process transition;
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',`
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allow system_crond_t self:capability { dac_override dac_read_search chown setgid setuid fowner net_bind_service fsetid };
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allow system_crond_t self:process { signal_perms setsched };
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allow system_crond_t self:fifo_file rw_file_perms;
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allow system_crond_t self:passwd rootok;
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# The entrypoint interface is not used as this is not
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# a regular entrypoint. Since crontab files are
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# not directly executed, crond must ensure that
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# the crontab file has a type that is appropriate
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# for the domain of the user cron job. It
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# performs an entrypoint permission check
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# for this purpose.
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allow system_crond_t system_cron_spool_t:file entrypoint;
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allow system_crond_t system_cron_spool_t:file r_file_perms;
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# Permit a transition from the crond_t domain to this domain.
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# The transition is requested explicitly by the modified crond
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# via setexeccon. There is no way to set up an automatic
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# transition, since crontabs are configuration files, not executables.
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allow crond_t system_crond_t:process transition;
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dontaudit crond_t system_crond_t:process { noatsecure siginh rlimitinh };
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allow crond_t system_crond_t:fd use;
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allow system_crond_t crond_t:fd use;
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allow system_crond_t crond_t:fifo_file rw_file_perms;
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allow system_crond_t crond_t:process sigchld;
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# Write /var/lock/makewhatis.lock.
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allow system_crond_t system_crond_lock_t:file create_file_perms;
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files_filetrans_lock(system_crond_t,system_crond_lock_t)
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# write temporary files
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allow system_crond_t system_crond_tmp_t:file create_file_perms;
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files_filetrans_tmp(system_crond_t,system_crond_tmp_t)
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# write temporary files in crond tmp dir:
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allow system_crond_t crond_tmp_t:dir rw_dir_perms;
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type_transition system_crond_t crond_tmp_t:file system_crond_tmp_t;
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# Read from /var/spool/cron.
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allow system_crond_t cron_spool_t:dir r_dir_perms;
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allow system_crond_t cron_spool_t:file r_file_perms;
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kernel_read_kernel_sysctl(system_crond_t)
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kernel_read_system_state(system_crond_t)
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kernel_read_software_raid_state(system_crond_t)
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# ps does not need to access /boot when run from cron
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bootloader_dontaudit_search_boot(system_crond_t)
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corenet_tcp_sendrecv_all_if(system_crond_t)
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corenet_raw_sendrecv_all_if(system_crond_t)
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corenet_udp_sendrecv_all_if(system_crond_t)
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corenet_tcp_sendrecv_all_nodes(system_crond_t)
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corenet_raw_sendrecv_all_nodes(system_crond_t)
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corenet_udp_sendrecv_all_nodes(system_crond_t)
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corenet_tcp_sendrecv_all_ports(system_crond_t)
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corenet_udp_sendrecv_all_ports(system_crond_t)
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corenet_non_ipsec_sendrecv(system_crond_t)
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corenet_tcp_bind_all_nodes(system_crond_t)
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corenet_udp_bind_all_nodes(system_crond_t)
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dev_getattr_all_blk_files(system_crond_t)
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dev_getattr_all_chr_files(system_crond_t)
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dev_read_urand(system_crond_t)
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fs_getattr_all_fs(system_crond_t)
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fs_getattr_all_files(system_crond_t)
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fs_getattr_all_symlinks(system_crond_t)
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fs_getattr_all_pipes(system_crond_t)
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fs_getattr_all_sockets(system_crond_t)
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corecmd_exec_bin(system_crond_t)
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corecmd_exec_sbin(system_crond_t)
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domain_exec_all_entry_files(system_crond_t)
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# quiet other ps operations
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domain_dontaudit_read_all_domains_state(system_crond_t)
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files_exec_etc_files(system_crond_t)
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files_read_etc_files(system_crond_t)
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files_read_etc_runtime_files(system_crond_t)
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files_list_all_dirs(system_crond_t)
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files_getattr_all_dirs(system_crond_t)
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files_getattr_all_files(system_crond_t)
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files_getattr_all_symlinks(system_crond_t)
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files_getattr_all_pipes(system_crond_t)
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files_getattr_all_sockets(system_crond_t)
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files_read_usr_files(system_crond_t)
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files_read_var_files(system_crond_t)
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# for nscd:
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files_dontaudit_search_pids(system_crond_t)
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# Access other spool directories like
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# /var/spool/anacron and /var/spool/slrnpull.
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files_manage_generic_spools(system_crond_t)
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init_use_fd(system_crond_t)
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init_use_script_fd(system_crond_t)
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init_use_script_pty(system_crond_t)
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init_read_utmp(system_crond_t)
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init_dontaudit_rw_utmp(system_crond_t)
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# prelink tells init to restart it self, we either need to allow or dontaudit
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init_write_initctl(system_crond_t)
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libs_use_ld_so(system_crond_t)
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libs_use_shared_libs(system_crond_t)
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libs_exec_lib_files(system_crond_t)
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libs_exec_ld_so(system_crond_t)
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logging_read_generic_logs(system_crond_t)
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logging_send_syslog_msg(system_crond_t)
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miscfiles_read_localization(system_crond_t)
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miscfiles_manage_man_pages(system_crond_t)
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seutil_read_config(system_crond_t)
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mta_send_mail(system_crond_t)
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ifdef(`distro_redhat', `
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# Run the rpm program in the rpm_t domain. Allow creation of RPM log files
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# via redirection of standard out.
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optional_policy(`rpm',`
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rpm_manage_log(system_crond_t)
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')
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')
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tunable_policy(`cron_can_relabel',`
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seutil_domtrans_setfiles(system_crond_t)
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',`
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selinux_get_fs_mount(system_crond_t)
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selinux_validate_context(system_crond_t)
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selinux_compute_access_vector(system_crond_t)
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selinux_compute_create_context(system_crond_t)
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selinux_compute_relabel_context(system_crond_t)
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selinux_compute_user_contexts(system_crond_t)
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seutil_read_file_contexts(system_crond_t)
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')
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optional_policy(`cyrus',`
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cyrus_manage_data(system_crond_t)
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')
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optional_policy(`ftp',`
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ftp_read_log(system_crond_t)
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')
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optional_policy(`inn',`
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inn_manage_log(system_crond_t)
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inn_manage_pid(system_crond_t)
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inn_read_config(system_crond_t)
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')
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optional_policy(`mysql',`
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mysql_read_config(system_crond_t)
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')
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optional_policy(`nis',`
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nis_use_ypbind(system_crond_t)
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')
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optional_policy(`nscd',`
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nscd_use_socket(system_crond_t)
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')
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optional_policy(`prelink',`
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prelink_read_cache(system_crond_t)
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prelink_manage_log(system_crond_t)
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prelink_delete_cache(system_crond_t)
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')
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optional_policy(`samba',`
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samba_read_config(system_crond_t)
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samba_read_log(system_crond_t)
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#samba_read_secrets(system_crond_t)
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')
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optional_policy(`slocate',`
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slocate_create_append_log(system_crond_t)
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')
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optional_policy(`sysstat',`
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sysstat_manage_log(system_crond_t)
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')
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ifdef(`TODO',`
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dontaudit userdomain system_crond_t:fd use;
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allow system_crond_t { sysfs_t rpc_pipefs_t }:dir getattr;
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# for if /var/mail is a symlink
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allow system_crond_t mail_spool_t:lnk_file read;
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ifdef(`mta.te', `
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mta_send_mail_transition(system_crond_t)
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allow mta_user_agent system_crond_t:fd use;
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r_dir_file(system_mail_t, crond_tmp_t)
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')
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# for daemon re-start
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allow system_crond_t syslogd_t:lnk_file read;
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') dnl end TODO
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')
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