244 lines
6.2 KiB
Plaintext
244 lines
6.2 KiB
Plaintext
|
|
policy_module(ssh,1.0)
|
|
|
|
########################################
|
|
#
|
|
# Declarations
|
|
#
|
|
|
|
attribute ssh_server;
|
|
|
|
# Type for the ssh-agent executable.
|
|
type ssh_agent_exec_t;
|
|
files_type(ssh_agent_exec_t)
|
|
|
|
# ssh client executable.
|
|
type ssh_exec_t;
|
|
files_type(ssh_exec_t)
|
|
|
|
type ssh_keygen_t;
|
|
type ssh_keygen_exec_t;
|
|
init_system_domain(ssh_keygen_t,ssh_keygen_exec_t)
|
|
role system_r types ssh_keygen_t;
|
|
|
|
type ssh_keysign_exec_t;
|
|
files_type(ssh_keysign_exec_t)
|
|
|
|
# real declaration moved to mls until
|
|
# range_transition works in loadable modules
|
|
gen_require(`
|
|
type sshd_exec_t;
|
|
')
|
|
files_type(sshd_exec_t)
|
|
|
|
ssh_server_template(sshd)
|
|
ssh_server_template(sshd_extern)
|
|
|
|
# cjp: commenting this out until typeattribute works in a conditional
|
|
#optional_policy(`inetd.te',`
|
|
# tunable_policy(`run_ssh_inetd',`
|
|
# inetd_tcp_service_domain(sshd_t,sshd_exec_t)
|
|
# ',`
|
|
# init_daemon_domain(sshd_t,sshd_exec_t)
|
|
# ')
|
|
#',`
|
|
# These rules should match the else block
|
|
# of the run_ssh_inetd tunable directly above
|
|
init_daemon_domain(sshd_t,sshd_exec_t)
|
|
#')
|
|
|
|
type sshd_key_t;
|
|
files_type(sshd_key_t)
|
|
|
|
type sshd_tmp_t;
|
|
files_tmp_file(sshd_tmp_t)
|
|
|
|
#################################
|
|
#
|
|
# sshd local policy
|
|
#
|
|
# sshd_t is the domain for the sshd program.
|
|
#
|
|
|
|
# so a tunnel can point to another ssh tunnel
|
|
allow sshd_t self:tcp_socket { acceptfrom connectto recvfrom };
|
|
|
|
allow sshd_t sshd_tmp_t:dir create_dir_perms;
|
|
allow sshd_t sshd_tmp_t:file create_file_perms;
|
|
allow sshd_t sshd_tmp_t:sock_file create_file_perms;
|
|
files_create_tmp_files(sshd_t, sshd_tmp_t, { dir file sock_file })
|
|
|
|
# for X forwarding
|
|
corenet_tcp_bind_xserver_port(sshd_t)
|
|
|
|
auth_exec_pam(sshd_t)
|
|
|
|
seutil_read_config(sshd_t)
|
|
|
|
ifdef(`targeted_policy',`
|
|
unconfined_domain_template(sshd_t)
|
|
')
|
|
|
|
tunable_policy(`ssh_sysadm_login',`
|
|
# Relabel and access ptys created by sshd
|
|
# ioctl is necessary for logout() processing for utmp entry and for w to
|
|
# display the tty.
|
|
# some versions of sshd on the new SE Linux require setattr
|
|
term_use_all_user_ptys(sshd_t)
|
|
term_setattr_all_user_ptys(sshd_t)
|
|
term_relabelto_all_user_ptys(sshd_t)
|
|
|
|
userdom_spec_domtrans_all_users(sshd_t)
|
|
userdom_signal_all_users(sshd_t)
|
|
',`
|
|
userdom_spec_domtrans_unpriv_users(sshd_t)
|
|
userdom_signal_unpriv_users(sshd_t)
|
|
')
|
|
|
|
optional_policy(`rpm.te',`
|
|
rpm_use_script_fd(sshd_t)
|
|
')
|
|
|
|
ifdef(`TODO',`
|
|
tunable_policy(`ssh_sysadm_login',`
|
|
# Relabel and access ptys created by sshd
|
|
# ioctl is necessary for logout() processing for utmp entry and for w to
|
|
# display the tty.
|
|
# some versions of sshd on the new SE Linux require setattr
|
|
allow sshd_t ptyfile:chr_file relabelto;
|
|
|
|
optional_policy(`xauth.te',`
|
|
domain_trans(sshd_t, xauth_exec_t, userdomain)
|
|
')
|
|
',`
|
|
optional_policy(`xauth.te',`
|
|
domain_trans(sshd_t, xauth_exec_t, unpriv_userdomain)
|
|
')
|
|
# Relabel and access ptys created by sshd
|
|
# ioctl is necessary for logout() processing for utmp entry and for w to
|
|
# display the tty.
|
|
# some versions of sshd on the new SE Linux require setattr
|
|
allow sshd_t userpty_type:chr_file { relabelto read write getattr ioctl setattr };
|
|
')
|
|
') dnl endif TODO
|
|
|
|
#################################
|
|
#
|
|
# sshd_extern local policy
|
|
#
|
|
# sshd_extern_t is the domain for ssh from outside our network
|
|
#
|
|
|
|
ifdef(`TODO',`
|
|
domain_trans(sshd_extern_t, shell_exec_t, user_mini_domain)
|
|
# Signal the user domains.
|
|
allow sshd_extern_t user_mini_domain:process signal;
|
|
|
|
ifdef(`xauth.te', `
|
|
domain_trans(sshd_extern_t, xauth_exec_t, user_mini_domain)
|
|
')
|
|
|
|
# Relabel and access ptys created by sshd
|
|
# ioctl is necessary for logout() processing for utmp entry and for w to
|
|
# display the tty.
|
|
# some versions of sshd on the new SE Linux require setattr
|
|
allow sshd_extern_t user_mini_domain:chr_file { relabelto read write getattr ioctl setattr };
|
|
|
|
# inheriting stream sockets is needed for "ssh host command" as no pty
|
|
# is allocated
|
|
allow user_mini_domain sshd_extern_t:unix_stream_socket rw_stream_socket_perms;
|
|
|
|
optional_policy(`inetd.te',`
|
|
tunable_policy(`run_ssh_inetd',`
|
|
domain_trans(inetd_t, sshd_exec_t, sshd_extern_t)
|
|
',`
|
|
domain_trans(initrc_t, sshd_exec_t, sshd_extern_t)
|
|
')
|
|
',`
|
|
# These rules should match the else block
|
|
# of the run_ssh_inetd tunable directly above
|
|
domain_trans(initrc_t, sshd_exec_t, sshd_extern_t)
|
|
')
|
|
|
|
ifdef(`direct_sysadm_daemon', `
|
|
# Direct execution by sysadm_r.
|
|
domain_auto_trans(sysadm_t, sshd_exec_t, sshd_t)
|
|
role_transition sysadm_r sshd_exec_t system_r;
|
|
')
|
|
|
|
# for port forwarding
|
|
allow userdomain sshd_t:tcp_socket { connectto recvfrom };
|
|
allow sshd_t userdomain:tcp_socket { acceptfrom recvfrom };
|
|
allow userdomain kernel_t:tcp_socket recvfrom;
|
|
allow sshd_t kernel_t:tcp_socket recvfrom;
|
|
') dnl endif TODO
|
|
|
|
########################################
|
|
#
|
|
# ssh_keygen local policy
|
|
#
|
|
|
|
# ssh_keygen_t is the type of the ssh-keygen program when run at install time
|
|
# and by sysadm_t
|
|
|
|
dontaudit ssh_keygen_t self:capability sys_tty_config;
|
|
allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal };
|
|
|
|
allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms;
|
|
|
|
allow ssh_keygen_t sshd_key_t:file create_file_perms;
|
|
files_create_etc_config(ssh_keygen_t,sshd_key_t,file)
|
|
|
|
kernel_read_kernel_sysctl(ssh_keygen_t)
|
|
|
|
fs_search_auto_mountpoints(ssh_keygen_t)
|
|
|
|
dev_read_sysfs(ssh_keygen_t)
|
|
dev_read_urand(ssh_keygen_t)
|
|
|
|
term_dontaudit_use_console(ssh_keygen_t)
|
|
|
|
domain_use_wide_inherit_fd(ssh_keygen_t)
|
|
|
|
files_read_etc_files(ssh_keygen_t)
|
|
|
|
init_use_fd(ssh_keygen_t)
|
|
init_use_script_pty(ssh_keygen_t)
|
|
|
|
libs_use_ld_so(ssh_keygen_t)
|
|
libs_use_shared_libs(ssh_keygen_t)
|
|
|
|
logging_send_syslog_msg(ssh_keygen_t)
|
|
|
|
allow ssh_keygen_t proc_t:dir r_dir_perms;
|
|
allow ssh_keygen_t proc_t:lnk_file read;
|
|
|
|
userdom_use_sysadm_tty(ssh_keygen_t)
|
|
userdom_dontaudit_use_unpriv_user_fd(ssh_keygen_t)
|
|
|
|
# cjp: with the old daemon_(base_)domain being broken up into
|
|
# a daemon and system interface, this probably is not needed:
|
|
ifdef(`direct_sysadm_daemon',`
|
|
userdom_dontaudit_use_sysadm_terms(ssh_keygen_t)
|
|
')
|
|
|
|
ifdef(`targeted_policy', `
|
|
term_dontaudit_use_unallocated_tty(ssh_keygen_t)
|
|
term_dontaudit_use_generic_pty(ssh_keygen_t)
|
|
files_dontaudit_read_root_file(ssh_keygen_t)
|
|
')
|
|
|
|
optional_policy(`selinuxutil.te',`
|
|
seutil_sigchld_newrole(ssh_keygen_t)
|
|
')
|
|
|
|
optional_policy(`udev.te', `
|
|
udev_read_db(ssh_keygen_t)
|
|
')
|
|
|
|
ifdef(`TODO',`
|
|
optional_policy(`rhgb.te', `
|
|
rhgb_domain(ssh_keygen_t)
|
|
')
|
|
')
|