policy_module(netutils, 1.20.2) ######################################## # # Declarations # ## ##

## Control users use of ping and traceroute ##

##
gen_tunable(user_ping, false) type netutils_t; type netutils_exec_t; init_system_domain(netutils_t, netutils_exec_t) type netutils_tmp_t; files_tmp_file(netutils_tmp_t) type ping_t; type ping_exec_t; init_system_domain(ping_t, ping_exec_t) type traceroute_t; type traceroute_exec_t; init_system_domain(traceroute_t, traceroute_exec_t) ######################################## # # Netutils local policy # # Perform network administration operations and have raw access to the network. allow netutils_t self:capability { dac_read_search net_admin net_raw setgid setpcap setuid sys_chroot }; dontaudit netutils_t self:capability { dac_override sys_tty_config }; allow netutils_t self:process { getcap setcap signal_perms }; allow netutils_t self:netlink_route_socket create_netlink_socket_perms; allow netutils_t self:netlink_socket create_socket_perms; # For tcpdump. allow netutils_t self:netlink_netfilter_socket create_socket_perms; allow netutils_t self:packet_socket { create_socket_perms map }; allow netutils_t self:udp_socket create_socket_perms; allow netutils_t self:tcp_socket create_stream_socket_perms; allow netutils_t self:socket create_socket_perms; manage_dirs_pattern(netutils_t, netutils_tmp_t, netutils_tmp_t) manage_files_pattern(netutils_t, netutils_tmp_t, netutils_tmp_t) files_tmp_filetrans(netutils_t, netutils_tmp_t, { file dir }) kernel_read_network_state(netutils_t) kernel_read_all_sysctls(netutils_t) corenet_all_recvfrom_netlabel(netutils_t) corenet_tcp_sendrecv_generic_if(netutils_t) corenet_raw_sendrecv_generic_if(netutils_t) corenet_udp_sendrecv_generic_if(netutils_t) corenet_tcp_sendrecv_generic_node(netutils_t) corenet_raw_sendrecv_generic_node(netutils_t) corenet_udp_sendrecv_generic_node(netutils_t) corenet_tcp_connect_all_ports(netutils_t) corenet_sendrecv_all_client_packets(netutils_t) corenet_udp_bind_generic_node(netutils_t) dev_read_sysfs(netutils_t) fs_getattr_xattr_fs(netutils_t) domain_use_interactive_fds(netutils_t) files_read_etc_files(netutils_t) # for nscd files_dontaudit_search_var(netutils_t) init_use_fds(netutils_t) init_use_script_ptys(netutils_t) auth_use_nsswitch(netutils_t) logging_send_syslog_msg(netutils_t) miscfiles_read_localization(netutils_t) userdom_use_inherited_user_terminals(netutils_t) optional_policy(` nis_use_ypbind(netutils_t) ') optional_policy(` vmware_append_log(netutils_t) ') optional_policy(` xen_append_log(netutils_t) ') ######################################## # # Ping local policy # allow ping_t self:capability { net_raw setuid }; # When ping is installed with capabilities instead of setuid allow ping_t self:process { getcap setcap }; dontaudit ping_t self:capability sys_tty_config; allow ping_t self:tcp_socket create_socket_perms; allow ping_t self:rawip_socket { create ioctl read write bind getopt setopt getattr }; allow ping_t self:packet_socket { create ioctl read write bind getopt setopt }; allow ping_t self:netlink_route_socket create_netlink_socket_perms; allow ping_t self:icmp_socket create; corenet_all_recvfrom_netlabel(ping_t) corenet_sendrecv_icmp_packets(ping_t) corenet_tcp_sendrecv_generic_if(ping_t) corenet_raw_sendrecv_generic_if(ping_t) corenet_raw_sendrecv_generic_node(ping_t) corenet_tcp_sendrecv_generic_node(ping_t) corenet_raw_bind_generic_node(ping_t) dev_read_urand(ping_t) domain_use_interactive_fds(ping_t) files_read_etc_files(ping_t) kernel_read_system_state(ping_t) auth_use_nsswitch(ping_t) logging_send_syslog_msg(ping_t) miscfiles_read_localization(ping_t) userdom_use_inherited_user_terminals(ping_t) ifdef(`hide_broken_symptoms',` init_dontaudit_use_fds(ping_t) optional_policy(` nagios_dontaudit_rw_log(ping_t) nagios_dontaudit_rw_pipes(ping_t) ') ') optional_policy(` munin_append_log(ping_t) ') ######################################## # # Traceroute local policy # allow traceroute_t self:capability { net_admin net_raw setgid setuid }; allow traceroute_t self:fifo_file rw_inherited_fifo_file_perms; allow traceroute_t self:process signal; allow traceroute_t self:rawip_socket create_socket_perms; allow traceroute_t self:packet_socket { map create_socket_perms }; allow traceroute_t self:udp_socket create_socket_perms; can_exec(traceroute_t, traceroute_exec_t) kernel_read_system_state(traceroute_t) kernel_read_network_state(traceroute_t) kernel_search_fs_sysctls(traceroute_t) corecmd_search_bin(traceroute_t) corenet_all_recvfrom_netlabel(traceroute_t) corenet_tcp_sendrecv_generic_if(traceroute_t) corenet_udp_sendrecv_generic_if(traceroute_t) corenet_raw_sendrecv_generic_if(traceroute_t) corenet_tcp_sendrecv_generic_node(traceroute_t) corenet_udp_sendrecv_generic_node(traceroute_t) corenet_raw_sendrecv_generic_node(traceroute_t) corenet_udp_bind_generic_node(traceroute_t) corenet_tcp_bind_generic_node(traceroute_t) # traceroute needs this but not tracepath corenet_raw_bind_generic_node(traceroute_t) corenet_udp_bind_traceroute_port(traceroute_t) corenet_tcp_connect_all_ports(traceroute_t) corenet_sendrecv_all_client_packets(traceroute_t) corenet_sendrecv_traceroute_server_packets(traceroute_t) dev_read_rand(traceroute_t) dev_read_urand(traceroute_t) dev_read_sysfs(traceroute_t) domain_use_interactive_fds(traceroute_t) files_read_etc_files(traceroute_t) files_read_usr_files(traceroute_t) init_use_fds(traceroute_t) auth_use_nsswitch(traceroute_t) logging_send_syslog_msg(traceroute_t) miscfiles_read_generic_certs(traceroute_t) miscfiles_read_localization(traceroute_t) userdom_use_inherited_user_terminals(traceroute_t) # nmap searches . userdom_dontaudit_search_user_home_dirs(traceroute_t) userdom_dontaudit_search_user_home_content(traceroute_t)