initial commit
This commit is contained in:
Chris PeBenito
parent
24280a524d
commit
23caa6d147
115
refpolicy/policy/modules/services/cron.if
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115
refpolicy/policy/modules/services/cron.if
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@ -0,0 +1,115 @@
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# Copyright (C) 2005 Tresys Technology, LLC
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########################################
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#
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# cron_per_userdomain_template(domain)
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#
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define(`cron_per_userdomain_template',`
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# Type of user crontabs once moved to cron spool.
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type $1_cron_spool_t;
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files_make_file($1_cron_spool_t)
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type $1_crond_t; # user_crond_domain;
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domain_make_domain($1_crond_t);
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corecommands_make_shell_entrypoint($1_crond_t)
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role $1_r types $1_crond_t;
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allow $1_crond_t self:capability dac_override;
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allow $1_crond_t self:process { sigkill sigstop signull signal setsched };
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allow $1_crond_t self:fifo_file { read getattr write append };
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allow $1_crond_t self:unix_stream_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown listen accept };
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allow $1_crond_t self:unix_dgram_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
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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 $1_crond_t $1_cron_spool_t:file entrypoint;
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ifdef(`fcron.te', `
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allow crond_t $1_cron_spool_t:file { create ioctl read getattr lock write setattr append link unlink rename };
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')
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kernel_read_system_state($1_crond_t)
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kernel_read_kernel_sysctl($1_crond_t)
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corenetwork_network_tcp_on_all_interfaces($1_crond_t)
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corenetwork_network_raw_on_all_interfaces($1_crond_t)
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corenetwork_network_udp_on_all_interfaces($1_crond_t)
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corenetwork_network_tcp_on_all_nodes($1_crond_t)
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corenetwork_network_raw_on_all_nodes($1_crond_t)
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corenetwork_network_udp_on_all_nodes($1_crond_t)
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corenetwork_network_tcp_on_all_ports($1_crond_t)
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corenetwork_network_udp_on_all_ports($1_crond_t)
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corenetwork_bind_tcp_on_all_nodes($1_crond_t)
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corenetwork_bind_udp_on_all_nodes($1_crond_t)
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devices_get_pseudorandom_data($1_crond_t)
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filesystem_get_all_filesystems_attributes($1_crond_t)
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domain_execute_all_entrypoint_programs($1_crond_t)
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files_read_general_application_resources($1_crond_t)
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files_execute_system_config_script($1_crond_t)
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corecommands_execute_general_programs($1_crond_t)
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corecommands_execute_system_programs($1_crond_t)
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libraries_use_dynamic_loader($1_crond_t)
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libraries_read_shared_libraries($1_crond_t)
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libraries_execute_library_scripts($1_crond_t)
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files_read_runtime_system_config($1_crond_t)
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selinux_read_config($1_crond_t)
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miscfiles_read_localization($1_crond_t)
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ifdef(`TODO',`
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# Access user files and dirs.
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allow $1_crond_t home_root_t:dir search;
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file_type_auto_trans($1_crond_t, $1_home_dir_t, $1_home_t)
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# Run scripts in user home directory and access shared libs.
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can_exec($1_crond_t, $1_home_t)
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file_type_auto_trans($1_crond_t, tmp_t, $1_tmp_t)
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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 execve_secure. 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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domain_trans(crond_t, shell_exec_t, $1_crond_t)
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ifdef(`mta.te', `
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domain_auto_trans($1_crond_t, sendmail_exec_t, $1_mail_t)
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allow $1_crond_t sendmail_exec_t:lnk_file { getattr read };
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# $1_mail_t should only be reading from the cron fifo not needing to write
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dontaudit $1_mail_t crond_t:fifo_file write;
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allow mta_user_agent $1_crond_t:fd use;
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')
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# This domain is granted permissions common to most domains.
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can_ypbind($1_crond_t)
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allow $1_crond_t var_spool_t:dir search;
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allow $1_crond_t var_t:dir r_dir_perms;
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allow $1_crond_t var_t:file { getattr read ioctl };
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allow $1_crond_t var_log_t:dir search;
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can_exec($1_crond_t, ld_so_t)
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# ps does not need to access /boot when run from cron
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dontaudit $1_crond_t boot_t:dir search;
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# quiet other ps operations
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dontaudit $1_crond_t domain:dir { getattr search };
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# for nscd
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dontaudit $1_crond_t var_run_t:dir search;
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') dnl endif TODO
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')
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378
refpolicy/policy/modules/services/cron.te
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378
refpolicy/policy/modules/services/cron.te
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@ -0,0 +1,378 @@
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# Copyright (C) 2005 Tresys Technology, LLC
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policy_module(consoletype, 1.0)
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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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########################################
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#
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# Declarations
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#
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type anacron_exec_t;
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files_make_file(anacron_exec_t)
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# Allow system cron jobs to relabel filesystem for restoring file contexts.
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bool cron_can_relabel false;
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type cron_spool_t;
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files_make_file(cron_spool_t)
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type crond_t; #, privmail, privfd, nscd_client_domain
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type crond_exec_t;
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domain_make_daemon_domain(crond_t,crond_exec_t)
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domain_make_file_descriptors_widely_inheritable(crond_t)
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type crond_log_t;
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logging_make_log_file(crond_t,crond_log_t)
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type crond_tmp_t;
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files_make_file(crond_tmp_t)
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type crond_var_run_t;
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files_make_file(crond_var_run_t)
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type crontab_exec_t;
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files_make_file(crontab_exec_t)
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type system_cron_spool_t;
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type system_crond_t; #, privmail, nscd_client_domain;
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domain_make_daemon_domain(system_crond_t,anacron_exec_t)
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corecommands_make_shell_entrypoint(system_crond_t)
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role system_r types system_crond_t;
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type system_crond_tmp_t;
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files_make_file(system_crond_tmp_t)
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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 net_bind_service sys_nice };
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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 dyntransition };
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allow crond_t self:process setexec;
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allow crond_t self:fd use;
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allow crond_t self:fifo_file { read getattr lock ioctl write append };
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allow crond_t self:unix_dgram_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown };
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allow crond_t self:unix_stream_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown listen accept };
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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 { associate getattr setattr create destroy read write lock unix_read unix_write };
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allow crond_t self:sem { associate getattr setattr create destroy read write unix_read unix_write };
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allow crond_t self:msgq { associate getattr setattr create destroy read write enqueue unix_read unix_write };
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allow crond_t self:msg { send receive };
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allow crond_t crond_log_t:file { create ioctl read getattr lock write setattr append link unlink rename };
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allow crond_t crond_var_run_t:file { getattr create read write append setattr unlink };
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files_create_daemon_runtime_data(crond_t,crond_var_run_t)
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allow crond_t crond_tmp_t:dir { create read getattr lock setattr ioctl link unlink rename search add_name remove_name reparent write rmdir };
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allow crond_t crond_tmp_t:file { create ioctl read getattr lock write setattr append link unlink rename };
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files_create_private_tmp_data(crond_t, crond_tmp_t, { file dir })
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kernel_read_kernel_sysctl(crond_t)
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kernel_read_hardware_state(crond_t)
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kernel_get_selinuxfs_mount_point(crond_t)
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kernel_validate_selinux_context(crond_t)
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kernel_compute_selinux_av(crond_t)
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kernel_compute_create(crond_t)
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kernel_compute_relabel(crond_t)
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kernel_compute_reachable_user_contexts(crond_t)
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devices_get_pseudorandom_data(crond_t)
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filesystem_get_all_filesystems_attributes(crond_t)
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terminal_ignore_use_console(crond_t)
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init_use_file_descriptors(crond_t)
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init_script_use_pseudoterminal(crond_t)
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domain_use_widely_inheritable_file_descriptors(crond_t)
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files_read_general_system_config(crond_t)
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libraries_use_dynamic_loader(crond_t)
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libraries_read_shared_libraries(crond_t)
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logging_send_system_log_message(crond_t)
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selinux_read_config(crond_t)
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selinux_read_default_contexts(crond_t)
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selinux_newrole_sigchld(crond_t)
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miscfiles_read_localization(crond_t)
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# need auth_chkpwd to check for locked accounts.
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authlogin_check_password_transition(crond_t)
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tunable_policy(`targeted_policy', `
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terminal_ignore_use_general_physical_terminal(crond_t)
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terminal_ignore_use_general_pseudoterminal(crond_t)
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files_ignore_read_rootfs_file(crond_t)
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')
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optional_policy(`udev.te', `
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udev_read_database(crond_t)
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')
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ifdef(`TODO',`
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allow crond_t proc_t:dir r_dir_perms;
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allow crond_t proc_t:lnk_file read;
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dontaudit crond_t unpriv_userdomain:fd use;
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allow crond_t autofs_t:dir { search getattr };
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dontaudit crond_t sysadm_home_dir_t:dir search;
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optional_policy(`rhgb.te', `
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allow crond_t rhgb_t:process sigchld;
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allow crond_t rhgb_t:fd use;
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allow crond_t rhgb_t:fifo_file { read write };
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')
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allow crond_t unpriv_userdomain:fd use;
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can_ypbind(crond_t)
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ifdef(`automount.te', `
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allow crond_t autofs_t:dir { search getattr };
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')
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# for finding binaries and /bin/sh
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allow crond_t { bin_t sbin_t }:dir search;
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allow crond_t { bin_t sbin_t }:lnk_file read;
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# Read from /var/spool/cron.
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allow crond_t var_lib_t:dir search;
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allow crond_t var_spool_t:dir r_dir_perms;
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allow crond_t cron_spool_t:dir r_dir_perms;
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allow crond_t cron_spool_t:file r_file_perms;
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allow crond_t default_t:dir search;
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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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# to search /home
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allow crond_t home_root_t:dir { getattr search };
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allow crond_t user_home_dir_type:dir r_dir_perms;
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# Run a shell.
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can_exec(crond_t, shell_exec_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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ifdef(`rpm.te', `
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allow crond_t rpm_log_t: file create_file_perms;
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system_crond_entry(rpm_exec_t, rpm_t)
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allow system_crond_t rpm_log_t:file create_file_perms;
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')
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')
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allow crond_t var_spool_t:file { getattr read };
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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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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 { sigkill sigstop signull signal setsched };
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allow system_crond_t self:fifo_file { read getattr write append };
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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 { getattr read };
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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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corenetwork_network_tcp_on_all_interfaces(system_crond_t)
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corenetwork_network_raw_on_all_interfaces(system_crond_t)
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corenetwork_network_udp_on_all_interfaces(system_crond_t)
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corenetwork_network_tcp_on_all_nodes(system_crond_t)
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corenetwork_network_raw_on_all_nodes(system_crond_t)
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corenetwork_network_udp_on_all_nodes(system_crond_t)
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corenetwork_network_tcp_on_all_ports(system_crond_t)
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corenetwork_network_udp_on_all_ports(system_crond_t)
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corenetwork_bind_tcp_on_all_nodes(system_crond_t)
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corenetwork_bind_udp_on_all_nodes(system_crond_t)
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devices_get_all_block_device_attributes(system_crond_t)
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devices_get_all_character_device_attributes(system_crond_t)
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devices_get_pseudorandom_data(system_crond_t)
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||||||
|
filesystem_get_all_filesystems_attributes(system_crond_t)
|
||||||
|
|
||||||
|
init_use_file_descriptors(system_crond_t)
|
||||||
|
init_script_use_file_descriptors(system_crond_t)
|
||||||
|
init_script_use_pseudoterminal(system_crond_t)
|
||||||
|
init_script_read_runtime_data(system_crond_t)
|
||||||
|
init_script_ignore_modify_runtime_data(system_crond_t)
|
||||||
|
|
||||||
|
domain_execute_all_entrypoint_programs(system_crond_t)
|
||||||
|
|
||||||
|
files_execute_system_config_script(system_crond_t)
|
||||||
|
files_read_general_system_config(system_crond_t)
|
||||||
|
files_read_runtime_system_config(system_crond_t)
|
||||||
|
files_read_all_directories(system_crond_t)
|
||||||
|
files_get_all_file_attributes(system_crond_t)
|
||||||
|
files_read_general_application_resources(system_crond_t)
|
||||||
|
|
||||||
|
corecommands_execute_general_programs(system_crond_t)
|
||||||
|
corecommands_execute_system_programs(system_crond_t)
|
||||||
|
|
||||||
|
libraries_use_dynamic_loader(system_crond_t)
|
||||||
|
libraries_read_shared_libraries(system_crond_t)
|
||||||
|
libraries_execute_library_scripts(system_crond_t)
|
||||||
|
|
||||||
|
logging_read_system_logs(system_crond_t)
|
||||||
|
logging_send_system_log_message(system_crond_t)
|
||||||
|
|
||||||
|
miscfiles_read_localization(system_crond_t)
|
||||||
|
miscfiles_read_man_pages(system_crond_t)
|
||||||
|
miscfiles_manage_man_page_cache(system_crond_t)
|
||||||
|
|
||||||
|
selinux_read_config(system_crond_t)
|
||||||
|
|
||||||
|
if (cron_can_relabel) {
|
||||||
|
selinux_setfiles_transition(system_crond_t)
|
||||||
|
} else {
|
||||||
|
kernel_get_selinuxfs_mount_point(system_crond_t)
|
||||||
|
kernel_validate_selinux_context(system_crond_t)
|
||||||
|
kernel_compute_selinux_av(system_crond_t)
|
||||||
|
kernel_compute_create(system_crond_t)
|
||||||
|
kernel_compute_relabel(system_crond_t)
|
||||||
|
kernel_compute_reachable_user_contexts(system_crond_t)
|
||||||
|
selinux_read_file_contexts(system_crond_t)
|
||||||
|
}
|
||||||
|
|
||||||
|
ifdef(`TODO',`
|
||||||
|
|
||||||
|
ifdef(`fcron.te', `
|
||||||
|
allow crond_t system_cron_spool_t:file create_file_perms;
|
||||||
|
')
|
||||||
|
|
||||||
|
# Permit a transition from the crond_t domain to this domain.
|
||||||
|
# The transition is requested explicitly by the modified crond
|
||||||
|
# via execve_secure. There is no way to set up an automatic
|
||||||
|
# transition, since crontabs are configuration files, not executables.
|
||||||
|
domain_trans(crond_t, shell_exec_t, system_crond_t)
|
||||||
|
|
||||||
|
ifdef(`mta.te', `
|
||||||
|
domain_auto_trans(system_crond_t, sendmail_exec_t, system_mail_t)
|
||||||
|
allow system_crond_t sendmail_exec_t:lnk_file { getattr read };
|
||||||
|
|
||||||
|
# system_mail_t should only be reading from the cron fifo not needing to write
|
||||||
|
dontaudit system_mail_t crond_t:fifo_file write;
|
||||||
|
allow mta_user_agent system_crond_t:fd use;
|
||||||
|
allow mta_user_agent system_crond_t:fd use;
|
||||||
|
r_dir_file(system_mail_t, crond_tmp_t)
|
||||||
|
')
|
||||||
|
|
||||||
|
# This domain is granted permissions common to most domains.
|
||||||
|
|
||||||
|
can_ypbind(system_crond_t)
|
||||||
|
allow system_crond_t var_spool_t:dir search;
|
||||||
|
|
||||||
|
allow system_crond_t var_t:dir r_dir_perms;
|
||||||
|
allow system_crond_t var_t:file { getattr read ioctl };
|
||||||
|
|
||||||
|
can_exec(system_crond_t, ld_so_t)
|
||||||
|
|
||||||
|
# ps does not need to access /boot when run from cron
|
||||||
|
dontaudit system_crond_t boot_t:dir search;
|
||||||
|
# quiet other ps operations
|
||||||
|
dontaudit system_crond_t domain:dir { getattr search };
|
||||||
|
# for nscd
|
||||||
|
dontaudit system_crond_t var_run_t:dir search;
|
||||||
|
|
||||||
|
allow system_crond_t proc_t:filesystem getattr;
|
||||||
|
allow system_crond_t usbdevfs_t:filesystem getattr;
|
||||||
|
|
||||||
|
allow system_crond_t { sysfs_t rpc_pipefs_t }:dir getattr;
|
||||||
|
|
||||||
|
# Access log files
|
||||||
|
file_type_auto_trans(system_crond_t, var_log_t, crond_log_t, file)
|
||||||
|
|
||||||
|
allow crond_t system_cron_spool_t:dir r_dir_perms;
|
||||||
|
allow crond_t system_cron_spool_t:file r_file_perms;
|
||||||
|
|
||||||
|
# Read from /var/spool/cron.
|
||||||
|
allow system_crond_t cron_spool_t:dir r_dir_perms;
|
||||||
|
allow system_crond_t cron_spool_t:file r_file_perms;
|
||||||
|
|
||||||
|
# Write to /var/lib/slocate.db.
|
||||||
|
allow system_crond_t var_lib_t:dir rw_dir_perms;
|
||||||
|
allow system_crond_t var_lib_t:file create_file_perms;
|
||||||
|
|
||||||
|
# Write /var/lock/makewhatis.lock.
|
||||||
|
lock_domain(system_crond)
|
||||||
|
|
||||||
|
# for if /var/mail is a symlink
|
||||||
|
allow { system_crond_t crond_t } mail_spool_t:lnk_file read;
|
||||||
|
allow crond_t mail_spool_t:dir search;
|
||||||
|
|
||||||
|
# Stat any file and search any directory for find.
|
||||||
|
allow system_crond_t fs_type:notdevfile_class_set getattr;
|
||||||
|
|
||||||
|
# Create temporary files.
|
||||||
|
file_type_auto_trans(system_crond_t, { tmp_t crond_tmp_t }, system_crond_tmp_t)
|
||||||
|
|
||||||
|
# Access other spool directories like
|
||||||
|
# /var/spool/anacron and /var/spool/slrnpull.
|
||||||
|
allow system_crond_t var_spool_t:file create_file_perms;
|
||||||
|
allow system_crond_t var_spool_t:dir rw_dir_perms;
|
||||||
|
|
||||||
|
# Do not audit attempts to search unlabeled directories (e.g. slocate).
|
||||||
|
dontaudit system_crond_t unlabeled_t:dir r_dir_perms;
|
||||||
|
dontaudit system_crond_t unlabeled_t:file r_file_perms;
|
||||||
|
|
||||||
|
#
|
||||||
|
# reading /var/spool/cron/mailman
|
||||||
|
#
|
||||||
|
allow system_crond_t devpts_t:filesystem getattr;
|
||||||
|
allow system_crond_t sysfs_t:filesystem getattr;
|
||||||
|
allow system_crond_t tmpfs_t:filesystem getattr;
|
||||||
|
allow system_crond_t rpc_pipefs_t:filesystem getattr;
|
||||||
|
|
||||||
|
#
|
||||||
|
# These rules are here to allow system cron jobs to su
|
||||||
|
#
|
||||||
|
ifdef(`su.te', `
|
||||||
|
su_restricted_domain(system_crond,system)
|
||||||
|
role system_r types system_crond_su_t;
|
||||||
|
allow system_crond_su_t crond_t:fifo_file ioctl;
|
||||||
|
')
|
||||||
|
|
||||||
|
#
|
||||||
|
# prelink tells init to restart it self, we either need to allow or dontaudit
|
||||||
|
#
|
||||||
|
allow system_crond_t initctl_t:fifo_file write;
|
||||||
|
dontaudit userdomain system_crond_t:fd use;
|
||||||
|
|
||||||
|
allow system_crond_t removable_t:filesystem { getattr };
|
||||||
|
#
|
||||||
|
# Required for webalizer
|
||||||
|
#
|
||||||
|
ifdef(`apache.te', `
|
||||||
|
allow system_crond_t httpd_log_t:file { getattr read };
|
||||||
|
')
|
||||||
|
|
||||||
|
') dnl end TODO
|
||||||
Loading…
Reference in New Issue
Block a user