From 650e75c57d68505d621bf99a813bf19f837024be Mon Sep 17 00:00:00 2001 From: Chris PeBenito Date: Mon, 16 May 2005 21:11:26 +0000 Subject: [PATCH] initial commit --- refpolicy/policy/modules/services/sendmail.te | 153 ++++++++++++++++++ refpolicy/policy/modules/system/audit.te | 83 ++++++++++ 2 files changed, 236 insertions(+) create mode 100644 refpolicy/policy/modules/services/sendmail.te create mode 100644 refpolicy/policy/modules/system/audit.te diff --git a/refpolicy/policy/modules/services/sendmail.te b/refpolicy/policy/modules/services/sendmail.te new file mode 100644 index 000000000..701d2706e --- /dev/null +++ b/refpolicy/policy/modules/services/sendmail.te @@ -0,0 +1,153 @@ +# Copyright (C) 2005 Tresys Technology, LLC + +policy_module(sendmail,1.0) + +######################################## +# +# Declarations +# + +type sendmail_t; # , nscd_client_domain, mta_delivery_agent, mail_server_sender', nosysadm) +mta_make_sendmail_mailserver_domain(sendmail_t) + +type sendmail_log_t; +logging_make_log_file(sendmail_log_t) + +type sendmail_tmp_t; +files_make_temporary_file(sendmail_tmp_t) + +type sendmail_var_run_t; +files_make_daemon_runtime_file(sendmail_var_run_t) + +######################################## +# +# Sendmail local policy +# + +allow sendmail_t self:capability { setuid setgid net_bind_service sys_nice chown sys_tty_config }; +allow sendmail_t self:fifo_file { getattr read write append ioctl lock }; +allow sendmail_t self:unix_stream_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown listen accept }; +allow sendmail_t self:unix_dgram_socket { create ioctl read getattr write setattr append bind connect getopt setopt shutdown }; + +allow sendmail_t sendmail_log_t:file { create ioctl read getattr lock write setattr append link unlink rename }; +allow sendmail_t sendmail_log_t:dir { getattr search read lock ioctl add_name remove_name write setattr }; +logging_create_private_log(sendmail_t,sendmail_log_t,{ file dir }) + +allow sendmail_t sendmail_tmp_t:dir { create read getattr lock setattr ioctl link unlink rename search add_name remove_name reparent write rmdir }; +allow sendmail_t sendmail_tmp_t:file { create ioctl read getattr lock write setattr append link unlink rename }; +files_create_private_tmp_data(sendmail_t, sendmail_tmp_t, { file dir }) + +allow sendmail_t sendmail_var_run_t:file { getattr create read write append setattr unlink }; +files_create_daemon_runtime_data(sendmail_t,sendmail_var_run_t) + +kernel_read_kernel_sysctl(sendmail_t) +kernel_read_hardware_state(sendmail_t) + +corenetwork_network_tcp_on_all_interfaces(sendmail_t) +corenetwork_network_raw_on_all_interfaces(sendmail_t) +corenetwork_network_udp_on_all_interfaces(sendmail_t) +corenetwork_network_tcp_on_all_nodes(sendmail_t) +corenetwork_network_raw_on_all_nodes(sendmail_t) +corenetwork_network_udp_on_all_nodes(sendmail_t) +corenetwork_network_tcp_on_all_ports(sendmail_t) +corenetwork_network_udp_on_all_ports(sendmail_t) +corenetwork_bind_tcp_on_all_nodes(sendmail_t) +corenetwork_bind_udp_on_all_nodes(sendmail_t) +corenetwork_bind_tcp_on_smtp_port(sendmail_t) + +devices_get_pseudorandom_data(sendmail_t) + +filesystem_get_all_filesystems_attributes(sendmail_t) + +terminal_ignore_use_console(sendmail_t) + +init_use_file_descriptors(sendmail_t) +init_script_use_pseudoterminal(sendmail_t) +# sendmail wants to read /var/run/utmp if the controlling tty is /dev/console +init_script_read_runtime_data(sendmail_t) +init_script_ignore_write_runtime_data(sendmail_t) + +domain_use_widely_inheritable_file_descriptors(sendmail_t) + +files_read_general_system_config(sendmail_t) +files_search_system_spool_directory(sendmail_t) + +logging_send_system_log_message(sendmail_t) + +libraries_use_dynamic_loader(sendmail_t) +libraries_read_shared_libraries(sendmail_t) +# Read /usr/lib/sasl2/.* +libraries_read_library_resources(sendmail_t) + +miscfiles_read_localization(sendmail_t) + +# Write to /etc/aliases and /etc/mail. +mta_modify_mail_aliases(sendmail_t) +# Write to /var/spool/mail and /var/spool/mqueue. +mta_manage_mail_queue(sendmail_t) +mta_manage_mail_spool(sendmail_t) + +sysnetwork_read_network_config(sendmail_t) + +tunable_policy(`targeted_policy', ` +terminal_ignore_use_general_physical_terminal(sendmail_t) +terminal_ignore_use_general_pseudoterminal(sendmail_t) +files_ignore_read_rootfs_file(sendmail_t) +') + +optional_policy(`selinux.te',` +selinux_newrole_sigchld(sendmail_t) +') + +optional_policy(`udev.te', ` +udev_read_database(sendmail_t) +') + +ifdef(`TODO',` + +optional_policy(`rhgb.te', ` +allow sendmail_t rhgb_t:process sigchld; +allow sendmail_t rhgb_t:fd use; +allow sendmail_t rhgb_t:fifo_file { read write }; +') +allow sendmail_t proc_t:dir r_dir_perms; +allow sendmail_t proc_t:lnk_file read; +dontaudit sendmail_t unpriv_userdomain:fd use; +allow sendmail_t autofs_t:dir { search getattr }; +dontaudit sendmail_t sysadm_home_dir_t:dir search; + +can_ypbind(sendmail_t) + +# +# Need this transition to create /etc/aliases.db +# +ifdef(`distro_redhat', ` +ifdef(`rpm.te', ` +domain_auto_trans(rpm_script_t, sendmail_exec_t, system_mail_t) +') +') + +allow sendmail_t etc_mail_t:dir rw_dir_perms; +allow sendmail_t etc_mail_t:file create_file_perms; +# for the start script to run make -C /etc/mail +allow initrc_t etc_mail_t:dir rw_dir_perms; +allow initrc_t etc_mail_t:file create_file_perms; +allow system_mail_t initrc_t:fd use; +allow system_mail_t initrc_t:fifo_file write; + +# When sendmail runs as user_mail_domain, it needs some extra permissions +# to update /etc/mail/statistics. +allow user_mail_domain etc_mail_t:file rw_file_perms; + +# Silently deny attempts to access /root. +dontaudit system_mail_t { staff_home_dir_t sysadm_home_dir_t}:dir { getattr search }; + +# Run procmail in its own domain, if defined. +ifdef(`procmail.te',` +corecommands_search_general_programs_directory(sendmail_t) +procmail_transition(sendmail_t) +domain_auto_trans(system_mail_t, procmail_exec_t, procmail_t) +') + +dontaudit sendmail_t admin_tty_type:chr_file { getattr ioctl }; +') dnl end TODO diff --git a/refpolicy/policy/modules/system/audit.te b/refpolicy/policy/modules/system/audit.te new file mode 100644 index 000000000..b24056269 --- /dev/null +++ b/refpolicy/policy/modules/system/audit.te @@ -0,0 +1,83 @@ +# Copyright (C) 2005 Tresys Technology, LLC + +policy_module(audit, 1.0) + +######################################## +# +# Declarations +# + +type auditd_log_t; +logging_make_log_file(auditd_t,auditd_log_t) + +type auditd_t; +type auditd_exec_t; +init_make_daemon_domain(auditd_t,auditd_exec_t) + +type auditd_var_run_t; +files_make_daemon_runtime_file(auditd_var_run_t) + +######################################## +# +# Auditd local policy +# + +allow auditd_t self:capability { audit_write audit_control }; +dontaudit auditd_t self:capability sys_tty_config; +allow auditd_t self:netlink_audit_socket { bind create getattr nlmsg_read nlmsg_write read write }; + +allow auditd_t auditd_log_t:file { create ioctl read getattr lock write setattr append link unlink rename }; + +allow auditd_t auditd_var_run_t:file { getattr create read write append setattr unlink }; +files_create_daemon_runtime_data(auditd_t,auditd_var_run_t) + +kernel_read_kernel_sysctl(auditd_t) +kernel_read_hardware_state(auditd_t) + +filesystem_get_all_filesystems_attributes(auditd_t) + +terminal_ignore_use_console(auditd_t) + +init_use_file_descriptors(auditd_t) +init_script_use_pseudoterminal(auditd_t) + +domain_use_widely_inheritable_file_descriptors(auditd_t) + +files_read_general_system_config(auditd_t) + +logging_send_system_log_message(auditd_t) + +libraries_use_dynamic_loader(auditd_t) +libraries_read_shared_libraries(auditd_t) + +miscfiles_read_localization(auditd_t) + +tunable_policy(`targeted_policy', ` +terminal_ignore_use_general_physical_terminal(auditd_t) +terminal_ignore_use_general_pseudoterminal(auditd_t) +files_ignore_read_rootfs_file(auditd_t) +')dnl end targeted_policy tunable + +optional_policy(`selinux.te',` +selinux_newrole_sigchld(auditd_t) +') + +optional_policy(`udev.te', ` +udev_read_database(auditd_t) +') + +ifdef(`TODO',` +allow auditd_t proc_t:dir r_dir_perms; +allow auditd_t proc_t:lnk_file read; +dontaudit auditd_t unpriv_userdomain:fd use; +allow auditd_t autofs_t:dir { search getattr }; +dontaudit auditd_t sysadm_home_dir_t:dir search; +optional_policy(`rhgb.te', ` +allow auditd_t rhgb_t:process sigchld; +allow auditd_t rhgb_t:fd use; +allow auditd_t rhgb_t:fifo_file { read write }; +') + +# cjp: this is questionable: +allow auditd_t sysadm_tty_device_t:chr_file rw_file_perms; +') dnl endif TODO