SSH patch from Dan Walsh.
This commit is contained in:
Chris PeBenito
parent
fee5bb73bc
commit
cde15072d0
@ -1,4 +1,4 @@
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HOME_DIR/\.ssh(/.*)? gen_context(system_u:object_r:home_ssh_t,s0)
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HOME_DIR/\.ssh(/.*)? gen_context(system_u:object_r:ssh_home_t,s0)
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/etc/ssh/primes -- gen_context(system_u:object_r:sshd_key_t,s0)
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/etc/ssh/ssh_host_key -- gen_context(system_u:object_r:sshd_key_t,s0)
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@ -65,8 +65,7 @@ template(`ssh_basic_client_template',`
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allow $1_ssh_t self:sem create_sem_perms;
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allow $1_ssh_t self:msgq create_msgq_perms;
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allow $1_ssh_t self:msg { send receive };
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allow $1_ssh_t self:tcp_socket create_socket_perms;
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allow $1_ssh_t self:netlink_route_socket r_netlink_socket_perms;
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allow $1_ssh_t self:tcp_socket create_stream_socket_perms;
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# for rsync
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allow $1_ssh_t $2:unix_stream_socket rw_socket_perms;
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@ -107,6 +106,7 @@ template(`ssh_basic_client_template',`
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read_lnk_files_pattern(ssh_server, $1_home_ssh_t, $1_home_ssh_t)
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kernel_read_kernel_sysctls($1_ssh_t)
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kernel_read_system_state($1_ssh_t)
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corenet_all_recvfrom_unlabeled($1_ssh_t)
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corenet_all_recvfrom_netlabel($1_ssh_t)
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@ -133,6 +133,8 @@ template(`ssh_basic_client_template',`
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files_read_etc_files($1_ssh_t)
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files_read_var_files($1_ssh_t)
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auth_use_nsswitch($1_ssh_t)
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logging_send_syslog_msg($1_ssh_t)
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logging_read_generic_logs($1_ssh_t)
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@ -140,20 +142,9 @@ template(`ssh_basic_client_template',`
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seutil_read_config($1_ssh_t)
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sysnet_read_config($1_ssh_t)
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sysnet_dns_name_resolve($1_ssh_t)
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optional_policy(`
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kerberos_use($1_ssh_t)
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')
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optional_policy(`
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nis_use_ypbind($1_ssh_t)
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')
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optional_policy(`
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nscd_socket_use($1_ssh_t)
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')
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')
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#######################################
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@ -183,19 +174,26 @@ template(`ssh_server_template', `
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type $1_devpts_t;
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term_login_pty($1_devpts_t)
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type $1_tmpfs_t;
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files_tmpfs_file($1_tmpfs_t)
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type $1_var_run_t;
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files_pid_file($1_var_run_t)
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allow $1_t self:capability { kill sys_chroot sys_resource chown dac_override fowner fsetid setgid setuid sys_tty_config };
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allow $1_t self:fifo_file rw_fifo_file_perms;
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allow $1_t self:process { signal setsched setrlimit setexec };
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allow $1_t self:process { signal getsched setsched setrlimit setexec };
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allow $1_t self:tcp_socket create_stream_socket_perms;
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allow $1_t self:udp_socket create_socket_perms;
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# ssh agent connections:
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allow $1_t self:unix_stream_socket create_stream_socket_perms;
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allow $1_t self:shm create_shm_perms;
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allow $1_t $1_devpts_t:chr_file { rw_chr_file_perms setattr getattr relabelfrom };
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term_create_pty($1_t,$1_devpts_t)
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term_create_pty($1_t, $1_devpts_t)
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manage_files_pattern($1_t, $1_tmpfs_t, $1_tmpfs_t)
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fs_tmpfs_filetrans($1_t, $1_tmpfs_t, file)
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allow $1_t $1_var_run_t:file manage_file_perms;
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files_pid_filetrans($1_t, $1_var_run_t, file)
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@ -206,6 +204,7 @@ template(`ssh_server_template', `
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allow $1_t sshd_key_t:file read_file_perms;
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kernel_read_kernel_sysctls($1_t)
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kernel_read_network_state($1_t)
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corenet_all_recvfrom_unlabeled($1_t)
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corenet_all_recvfrom_netlabel($1_t)
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@ -242,13 +241,15 @@ template(`ssh_server_template', `
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miscfiles_read_localization($1_t)
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sysnet_read_config($1_t)
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userdom_dontaudit_relabelfrom_user_ptys($1_t)
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userdom_search_user_home_dirs($1_t)
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# Allow checking users mail at login
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mta_getattr_spool($1_t)
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tunable_policy(`use_nfs_home_dirs',`
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fs_read_nfs_files($1_t)
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fs_read_nfs_symlinks($1_t)
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')
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tunable_policy(`use_samba_home_dirs',`
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@ -257,18 +258,12 @@ template(`ssh_server_template', `
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optional_policy(`
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kerberos_use($1_t)
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kerberos_manage_host_rcache($1_t)
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')
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optional_policy(`
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# Allow checking users mail at login
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mta_getattr_spool($1_t)
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')
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files_read_var_lib_symlinks($1_t)
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optional_policy(`
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nscd_socket_use($1_t)
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')
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optional_policy(`
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nx_spec_domtrans_server($1_t)
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')
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')
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@ -298,7 +293,7 @@ template(`ssh_role_template',`
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gen_require(`
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attribute ssh_server, ssh_agent_type;
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type ssh_t, ssh_exec_t, ssh_tmpfs_t, home_ssh_t;
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type ssh_t, ssh_exec_t, ssh_tmpfs_t, ssh_home_t;
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type ssh_agent_exec_t, ssh_keysign_t, ssh_tmpfs_t;
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type ssh_agent_tmp_t;
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')
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@ -337,9 +332,10 @@ template(`ssh_role_template',`
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allow ssh_t $3:unix_stream_socket connectto;
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# user can manage the keys and config
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manage_files_pattern($3, home_ssh_t, home_ssh_t)
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manage_lnk_files_pattern($3, home_ssh_t, home_ssh_t)
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manage_sock_files_pattern($3, home_ssh_t, home_ssh_t)
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manage_files_pattern($3, ssh_home_t, ssh_home_t)
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manage_lnk_files_pattern($3, ssh_home_t, ssh_home_t)
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manage_sock_files_pattern($3, ssh_home_t, ssh_home_t)
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userdom_search_user_home_dirs($1_t)
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##############################
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#
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@ -444,6 +440,24 @@ interface(`ssh_sigchld',`
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allow $1 sshd_t:process sigchld;
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')
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########################################
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## <summary>
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## Send a generic signal to the ssh server.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`ssh_signal',`
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gen_require(`
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type sshd_t;
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')
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allow $1 sshd_t:process signal;
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')
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########################################
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## <summary>
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## Read a ssh server unnamed pipe.
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@ -461,6 +475,23 @@ interface(`ssh_read_pipes',`
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allow $1 sshd_t:fifo_file { getattr read };
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')
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########################################
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## <summary>
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## Read and write a ssh server unnamed pipe.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`ssh_rw_pipes',`
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gen_require(`
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type sshd_t;
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')
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allow $1 sshd_t:fifo_file { write read getattr ioctl };
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')
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########################################
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## <summary>
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@ -568,6 +599,65 @@ interface(`ssh_exec',`
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can_exec($1, ssh_exec_t)
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')
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########################################
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## <summary>
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## Set the attributes of sshd key files.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`ssh_setattr_key_files',`
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gen_require(`
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type sshd_key_t;
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')
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allow $1 sshd_key_t:file setattr;
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files_search_pids($1)
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')
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########################################
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## <summary>
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## Execute the ssh agent client in the caller domain.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`ssh_agent_exec',`
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gen_require(`
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type ssh_agent_exec_t;
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')
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corecmd_search_bin($1)
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can_exec($1, ssh_agent_exec_t)
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')
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########################################
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## <summary>
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## Read ssh home directory content
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`ssh_read_user_home_files',`
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gen_require(`
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type ssh_home_t;
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')
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allow $1 ssh_home_t:dir list_dir_perms;
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read_files_pattern($1, ssh_home_t, ssh_home_t)
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read_lnk_files_pattern($1, ssh_home_t, ssh_home_t)
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userdom_search_user_home_dirs($1)
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')
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########################################
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## <summary>
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## Execute the ssh key generator in the ssh keygen domain.
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@ -603,3 +693,22 @@ interface(`ssh_dontaudit_read_server_keys',`
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dontaudit $1 sshd_key_t:file { getattr read };
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')
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#######################################
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## <summary>
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## Delete from the ssh temp files.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed access.
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## </summary>
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## </param>
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#
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interface(`ssh_delete_tmp',`
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gen_require(`
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type sshd_tmp_t;
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')
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files_search_tmp($1)
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delete_files_pattern($1, sshd_tmp_t, sshd_tmp_t)
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')
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@ -1,5 +1,5 @@
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policy_module(ssh, 2.1.0)
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policy_module(ssh, 2.1.1)
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########################################
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#
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@ -74,11 +74,11 @@ typealias ssh_tmpfs_t alias { auditadm_ssh_tmpfs_t secadm_ssh_tmpfs_t };
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files_tmpfs_file(ssh_tmpfs_t)
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ubac_constrained(ssh_tmpfs_t)
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type home_ssh_t;
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typealias home_ssh_t alias { user_home_ssh_t staff_home_ssh_t sysadm_home_ssh_t };
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typealias home_ssh_t alias { auditadm_home_ssh_t secadm_home_ssh_t };
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files_type(home_ssh_t)
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userdom_user_home_content(home_ssh_t)
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type ssh_home_t;
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typealias ssh_home_t alias { home_ssh_t user_ssh_home_t user_home_ssh_t staff_home_ssh_t sysadm_home_ssh_t };
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typealias ssh_home_t alias { auditadm_home_ssh_t secadm_home_ssh_t };
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files_type(ssh_home_t)
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userdom_user_home_content(ssh_home_t)
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##############################
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#
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@ -95,8 +95,7 @@ allow ssh_t self:shm create_shm_perms;
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allow ssh_t self:sem create_sem_perms;
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allow ssh_t self:msgq create_msgq_perms;
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allow ssh_t self:msg { send receive };
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allow ssh_t self:tcp_socket create_socket_perms;
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allow ssh_t self:netlink_route_socket r_netlink_socket_perms;
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allow ssh_t self:tcp_socket create_stream_socket_perms;
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# Read the ssh key file.
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allow ssh_t sshd_key_t:file read_file_perms;
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@ -110,7 +109,7 @@ manage_files_pattern(ssh_t, ssh_tmpfs_t, ssh_tmpfs_t)
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manage_lnk_files_pattern(ssh_t, ssh_tmpfs_t, ssh_tmpfs_t)
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manage_fifo_files_pattern(ssh_t, ssh_tmpfs_t, ssh_tmpfs_t)
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manage_sock_files_pattern(ssh_t, ssh_tmpfs_t, ssh_tmpfs_t)
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fs_tmpfs_filetrans(ssh_t, ssh_tmpfs_t,{ dir file lnk_file sock_file fifo_file })
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fs_tmpfs_filetrans(ssh_t, ssh_tmpfs_t, { dir file lnk_file sock_file fifo_file })
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manage_dirs_pattern(ssh_t, home_ssh_t, home_ssh_t)
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manage_sock_files_pattern(ssh_t, home_ssh_t, home_ssh_t)
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@ -126,11 +125,12 @@ manage_files_pattern(ssh_t, home_ssh_t, home_ssh_t)
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read_lnk_files_pattern(ssh_t, home_ssh_t, home_ssh_t)
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# ssh servers can read the user keys and config
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allow ssh_server home_ssh_t:dir list_dir_perms;
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read_files_pattern(ssh_server, home_ssh_t, home_ssh_t)
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read_lnk_files_pattern(ssh_server, home_ssh_t, home_ssh_t)
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allow ssh_server ssh_home_t:dir list_dir_perms;
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read_files_pattern(ssh_server, ssh_home_t, ssh_home_t)
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read_lnk_files_pattern(ssh_server, ssh_home_t, ssh_home_t)
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kernel_read_kernel_sysctls(ssh_t)
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kernel_read_system_state(ssh_t)
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corenet_all_recvfrom_unlabeled(ssh_t)
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corenet_all_recvfrom_netlabel(ssh_t)
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@ -160,13 +160,12 @@ files_read_var_files(ssh_t)
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logging_send_syslog_msg(ssh_t)
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logging_read_generic_logs(ssh_t)
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auth_use_nsswitch(ssh_t)
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miscfiles_read_localization(ssh_t)
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seutil_read_config(ssh_t)
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sysnet_read_config(ssh_t)
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sysnet_dns_name_resolve(ssh_t)
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userdom_dontaudit_list_user_home_dirs(ssh_t)
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userdom_search_user_home_dirs(ssh_t)
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# Write to the user domain tty.
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@ -194,18 +193,7 @@ tunable_policy(`use_samba_home_dirs',`
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# for port forwarding
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tunable_policy(`user_tcp_server',`
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corenet_tcp_bind_ssh_port(ssh_t)
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')
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optional_policy(`
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kerberos_use(ssh_t)
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')
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optional_policy(`
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nis_use_ypbind(ssh_t)
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')
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optional_policy(`
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nscd_socket_use(ssh_t)
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corenet_tcp_bind_generic_node(ssh_t)
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')
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optional_policy(`
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@ -322,6 +310,10 @@ tunable_policy(`ssh_sysadm_login',`
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userdom_signal_unpriv_users(sshd_t)
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')
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optional_policy(`
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kerberos_keytab_template(sshd, sshd_t)
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')
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optional_policy(`
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daemontools_service_domain(sshd_t, sshd_exec_t)
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')
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@ -400,14 +392,12 @@ files_read_etc_files(ssh_keygen_t)
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init_use_fds(ssh_keygen_t)
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init_use_script_ptys(ssh_keygen_t)
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auth_use_nsswitch(ssh_keygen_t)
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logging_send_syslog_msg(ssh_keygen_t)
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userdom_dontaudit_use_unpriv_user_fds(ssh_keygen_t)
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optional_policy(`
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nscd_socket_use(ssh_keygen_t)
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')
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optional_policy(`
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seutil_sigchld_newrole(ssh_keygen_t)
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')
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