diff --git a/refpolicy/policy/global_tunables b/refpolicy/policy/global_tunables index b8a1b9e..508631b 100644 --- a/refpolicy/policy/global_tunables +++ b/refpolicy/policy/global_tunables @@ -25,6 +25,9 @@ gen_tunable(allow_kerberos,false) ## allow host key based authentication gen_tunable(allow_ssh_keysign,false) +## Allow sysadm to ptrace all processes +gen_tunable(allow_ptrace,false) + ## Allow users to connect to mysql gen_tunable(allow_user_mysql_connect,false) diff --git a/refpolicy/policy/modules/admin/netutils.if b/refpolicy/policy/modules/admin/netutils.if index 1c5725b..1738f27 100644 --- a/refpolicy/policy/modules/admin/netutils.if +++ b/refpolicy/policy/modules/admin/netutils.if @@ -108,7 +108,6 @@ interface(`netutils_domtrans_ping',` interface(`netutils_run_ping',` gen_require(` type ping_t; - class chr_file rw_term_perms; ') netutils_domtrans_ping($1) @@ -118,6 +117,35 @@ interface(`netutils_run_ping',` ######################################## ## +## Conditionally execute ping in the ping domain, and +## allow the specified role the ping domain. +## +## +## The type of the process performing this action. +## +## +## The role to be allowed the ping domain. +## +## +## The type of the terminal allow the ping domain to use. +## +# +interface(`netutils_run_ping_cond',` + gen_require(` + type ping_t; + bool user_ping; + ') + + role $2 types ping_t; + + if ( user_ping ) { + netutils_domtrans_ping($1) + allow ping_t $3:chr_file rw_term_perms; + } +') + +######################################## +## ## Execute ping in the caller domain. ## ## @@ -184,6 +212,35 @@ interface(`netutils_run_traceroute',` ######################################## ## +## Conditionally execute traceroute in the traceroute domain, and +## allow the specified role the traceroute domain. +## +## +## The type of the process performing this action. +## +## +## The role to be allowed the traceroute domain. +## +## +## The type of the terminal allow the traceroute domain to use. +## +# +interface(`netutils_run_traceroute_cond',` + gen_require(` + type traceroute_t; + bool user_ping; + ') + + role $2 types traceroute_t; + + if( user_ping ) { + netutils_domtrans_traceroute($1) + allow traceroute_t $3:chr_file rw_term_perms; + } +') + +######################################## +## ## Execute traceroute in the caller domain. ## ## diff --git a/refpolicy/policy/modules/admin/netutils.te b/refpolicy/policy/modules/admin/netutils.te index 50e55de..a089a1d 100644 --- a/refpolicy/policy/modules/admin/netutils.te +++ b/refpolicy/policy/modules/admin/netutils.te @@ -152,11 +152,9 @@ optional_policy(`hotplug.te',` ') ifdef(`TODO',` -in_user_role(ping_t) -tunable_policy(`user_ping',` - domain_auto_trans(unpriv_userdomain, ping_exec_t, ping_t) +if(user_ping) { ifdef(`gnome-pty-helper.te', `allow ping_t gphdomain:fd use;') -') +} ') dnl end TODO ######################################## @@ -217,10 +215,6 @@ optional_policy(`nscd.te',` ') ifdef(`TODO',` -in_user_role(traceroute_t) -tunable_policy(`user_ping',` - domain_auto_trans(unpriv_userdomain, traceroute_exec_t, traceroute_t) -') ifdef(`gnome-pty-helper.te', `allow traceroute_t sysadm_gph_t:fd use;') #rules needed for nmap dontaudit traceroute_t userdomain:dir search; diff --git a/refpolicy/policy/modules/admin/rpm.if b/refpolicy/policy/modules/admin/rpm.if index 154098e..75d2511 100644 --- a/refpolicy/policy/modules/admin/rpm.if +++ b/refpolicy/policy/modules/admin/rpm.if @@ -148,14 +148,11 @@ interface(`rpm_use_script_fd',` # interface(`rpm_read_db',` gen_require(` - type rpm_var_lib_t_t; - class dir r_dir_perms; - class lnk_file r_file_perms; - class file r_file_perms; + type rpm_var_lib_t; ') allow $1 rpm_var_lib_t:dir r_dir_perms; - allow $1 rpm_var_lib_t:file r_file_perms; + allow $1 rpm_var_lib_t:file { getattr read }; allow $1 rpm_var_lib_t:lnk_file r_file_perms; ') @@ -170,9 +167,6 @@ interface(`rpm_read_db',` interface(`rpm_manage_db',` gen_require(` type rpm_var_lib_t; - class dir rw_dir_perms; - class lnk_file { getattr read write unlink }; - class file { getattr create read write append unlink }; ') allow $1 rpm_var_lib_t:dir rw_dir_perms; diff --git a/refpolicy/policy/modules/services/nis.if b/refpolicy/policy/modules/services/nis.if index 2a2a5fd..c4e02fc 100644 --- a/refpolicy/policy/modules/services/nis.if +++ b/refpolicy/policy/modules/services/nis.if @@ -20,7 +20,7 @@ interface(`nis_use_ypbind',` allow $1 self:udp_socket create_socket_perms; allow $1 var_yp_t:dir r_dir_perms; - allow $1 var_yp_t:lnk_file r_file_perms; + allow $1 var_yp_t:lnk_file { getattr read }; allow $1 var_yp_t:file r_file_perms; corenet_tcp_sendrecv_all_if($1) diff --git a/refpolicy/policy/modules/system/domain.if b/refpolicy/policy/modules/system/domain.if index 5da415f..3f7bfc2 100644 --- a/refpolicy/policy/modules/system/domain.if +++ b/refpolicy/policy/modules/system/domain.if @@ -71,6 +71,10 @@ interface(`domain_type',` unconfined_sigchld($1) ') + tunable_policy(`allow_ptrace',` + userdom_sigchld_sysadm($1) + ') + # allow any domain to connect to the LDAP server optional_policy(`ldap.te',` ldap_use($1) @@ -547,6 +551,22 @@ interface(`domain_getattr_confined_domains',` ######################################## ## +## Ptrace all domains. +## +## +## Domain allowed access. +## +# +interface(`domain_ptrace_all_domains',` + gen_require(` + attribute domain; + ') + + allow $1 domain:process ptrace; +') + +######################################## +## ## Do not audit attempts to ptrace all domains. ## ## @@ -566,7 +586,6 @@ interface(`domain_getattr_confined_domains',` interface(`domain_dontaudit_ptrace_all_domains',` gen_require(` attribute domain; - class process ptrace; ') dontaudit $1 domain:process ptrace; diff --git a/refpolicy/policy/modules/system/selinuxutil.te b/refpolicy/policy/modules/system/selinuxutil.te index 9ed52dd..d690a99 100644 --- a/refpolicy/policy/modules/system/selinuxutil.te +++ b/refpolicy/policy/modules/system/selinuxutil.te @@ -380,7 +380,6 @@ ifdef(`targeted_policy',`',` term_dontaudit_list_ptys(run_init_t) - auth_domtrans_chk_passwd(run_init_t) auth_dontaudit_read_shadow(run_init_t) corecmd_exec_bin(run_init_t) diff --git a/refpolicy/policy/modules/system/userdomain.if b/refpolicy/policy/modules/system/userdomain.if index 4656bb4..0950c76 100644 --- a/refpolicy/policy/modules/system/userdomain.if +++ b/refpolicy/policy/modules/system/userdomain.if @@ -609,6 +609,11 @@ template(`unpriv_user_template', ` modutils_read_module_conf($1_t) ') + optional_policy(`netutils.te',` + netutils_run_ping_cond($1_t,$1_r,{ $1_tty_device_t $1_devpts_t }) + netutils_run_traceroute_cond($1_t,$1_r,{ $1_tty_device_t $1_devpts_t }) + ') + optional_policy(`selinuxutil.te',` # for when the network connection is killed seutil_dontaudit_signal_newrole($1_t) @@ -1515,6 +1520,22 @@ interface(`userdom_read_staff_home_files',` ######################################## ## +## Send a SIGCHLD signal to sysadm users. +## +## +## The type of the process performing this action. +## +# +interface(`userdom_sigchld_sysadm',` + gen_require(` + type sysadm_t; + ') + + allow $1 sysadm_t:process sigchld; +') + +######################################## +## ## Read and write sysadm ttys. ## ## diff --git a/refpolicy/policy/modules/system/userdomain.te b/refpolicy/policy/modules/system/userdomain.te index f18b913..6881cfb 100644 --- a/refpolicy/policy/modules/system/userdomain.te +++ b/refpolicy/policy/modules/system/userdomain.te @@ -116,6 +116,10 @@ ifdef(`targeted_policy',` ') ') + tunable_policy(`allow_ptrace',` + domain_ptrace_all_domains(sysadm_t) + ') + optional_policy(`bootloader.te',` bootloader_run(sysadm_t,sysadm_r,admin_terminal) ')