354 lines
7.4 KiB
Plaintext
354 lines
7.4 KiB
Plaintext
## <summary>MIT Kerberos admin and KDC</summary>
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## <desc>
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## <p>
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## This policy supports:
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## </p>
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## <p>
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## Servers:
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## <ul>
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## <li>kadmind</li>
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## <li>krb5kdc</li>
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## </ul>
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## </p>
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## <p>
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## Clients:
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## <ul>
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## <li>kinit</li>
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## <li>kdestroy</li>
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## <li>klist</li>
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## <li>ksu (incomplete)</li>
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## </ul>
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## </p>
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## </desc>
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########################################
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## <summary>
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## Execute kadmind in the current 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(`kerberos_exec_kadmind',`
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gen_require(`
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type kadmind_exec_t;
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')
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can_exec($1, kadmind_exec_t)
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')
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########################################
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## <summary>
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## Execute a domain transition to run kpropd.
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain allowed to transition.
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## </summary>
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## </param>
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#
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interface(`kerberos_domtrans_kpropd',`
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gen_require(`
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type kpropd_t, kpropd_exec_t;
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')
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domtrans_pattern($1, kpropd_exec_t, kpropd_t)
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')
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########################################
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## <summary>
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## Use kerberos services
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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(`kerberos_use',`
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gen_require(`
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type krb5_conf_t, krb5kdc_conf_t;
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')
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files_search_etc($1)
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allow $1 krb5_conf_t:file read_file_perms;
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dontaudit $1 krb5_conf_t:file write;
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dontaudit $1 krb5kdc_conf_t:dir list_dir_perms;
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dontaudit $1 krb5kdc_conf_t:file rw_file_perms;
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#kerberos libraries are attempting to set the correct file context
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dontaudit $1 self:process setfscreate;
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selinux_dontaudit_validate_context($1)
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seutil_dontaudit_read_file_contexts($1)
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tunable_policy(`allow_kerberos',`
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allow $1 self:tcp_socket create_socket_perms;
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allow $1 self:udp_socket create_socket_perms;
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corenet_all_recvfrom_unlabeled($1)
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corenet_all_recvfrom_netlabel($1)
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corenet_tcp_sendrecv_all_if($1)
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corenet_udp_sendrecv_all_if($1)
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corenet_tcp_sendrecv_all_nodes($1)
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corenet_udp_sendrecv_all_nodes($1)
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corenet_tcp_sendrecv_kerberos_port($1)
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corenet_udp_sendrecv_kerberos_port($1)
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corenet_tcp_bind_all_nodes($1)
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corenet_udp_bind_all_nodes($1)
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corenet_tcp_connect_kerberos_port($1)
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corenet_tcp_connect_ocsp_port($1)
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corenet_sendrecv_kerberos_client_packets($1)
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corenet_sendrecv_ocsp_client_packets($1)
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')
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optional_policy(`
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tunable_policy(`allow_kerberos',`
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pcscd_stream_connect($1)
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')
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')
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')
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########################################
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## <summary>
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## Read the kerberos configuration file (/etc/krb5.conf).
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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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## <rolecap/>
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#
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interface(`kerberos_read_config',`
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gen_require(`
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type krb5_conf_t;
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')
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files_search_etc($1)
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allow $1 krb5_conf_t:file read_file_perms;
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')
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########################################
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## <summary>
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## Do not audit attempts to write the kerberos
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## configuration file (/etc/krb5.conf).
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## </summary>
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## <param name="domain">
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## <summary>
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## Domain to not audit.
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## </summary>
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## </param>
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#
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interface(`kerberos_dontaudit_write_config',`
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gen_require(`
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type krb5_conf_t;
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')
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dontaudit $1 krb5_conf_t:file write;
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')
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########################################
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## <summary>
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## Read and write the kerberos configuration file (/etc/krb5.conf).
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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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## <rolecap/>
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#
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interface(`kerberos_rw_config',`
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gen_require(`
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type krb5_conf_t;
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')
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files_search_etc($1)
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allow $1 krb5_conf_t:file rw_file_perms;
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')
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########################################
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## <summary>
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## Read the kerberos key table.
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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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## <rolecap/>
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#
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interface(`kerberos_read_keytab',`
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gen_require(`
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type krb5_keytab_t;
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')
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files_search_etc($1)
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allow $1 krb5_keytab_t:file read_file_perms;
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')
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########################################
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## <summary>
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## Create a derived type for kerberos keytab
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## </summary>
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## <param name="prefix">
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## <summary>
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## The prefix to be used for deriving type names.
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## </summary>
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## </param>
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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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template(`kerberos_keytab_template',`
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type $1_keytab_t;
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files_type($1_keytab_t)
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allow $2 $1_keytab_t:file read_file_perms;
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kerberos_read_keytab($2)
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kerberos_use($2)
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')
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########################################
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## <summary>
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## Read the kerberos kdc configuration file (/etc/krb5kdc.conf).
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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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## <rolecap/>
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#
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interface(`kerberos_read_kdc_config',`
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gen_require(`
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type krb5kdc_conf_t;
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')
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files_search_etc($1)
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read_files_pattern($1, krb5kdc_conf_t, krb5kdc_conf_t)
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')
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########################################
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## <summary>
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## Read the kerberos kdc configuration file (/etc/krb5kdc.conf).
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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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## <rolecap/>
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#
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interface(`kerberos_manage_host_rcache',`
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gen_require(`
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type krb5_host_rcache_t;
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')
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# creates files as system_u no matter what the selinux user
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# cjp: should be in the below tunable but typeattribute
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# does not work in conditionals
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domain_obj_id_change_exemption($1)
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tunable_policy(`allow_kerberos',`
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allow $1 self:process setfscreate;
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selinux_validate_context($1)
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seutil_read_file_contexts($1)
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allow $1 krb5_host_rcache_t:file manage_file_perms;
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files_search_tmp($1)
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')
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')
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########################################
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## <summary>
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## Connect to krb524 service
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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(`kerberos_connect_524',`
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tunable_policy(`allow_kerberos',`
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allow $1 self:udp_socket create_socket_perms;
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corenet_all_recvfrom_unlabeled($1)
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corenet_udp_sendrecv_generic_if($1)
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corenet_udp_sendrecv_all_nodes($1)
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corenet_udp_sendrecv_kerberos_master_port($1)
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corenet_sendrecv_kerberos_master_client_packets($1)
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')
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')
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########################################
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## <summary>
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## All of the rules required to administrate
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## an kerberos environment
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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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## <param name="role">
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## <summary>
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## The role to be allowed to manage the kerberos domain.
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## </summary>
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## </param>
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## <rolecap/>
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#
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interface(`kerberos_admin',`
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gen_require(`
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type kadmind_t, krb5kdc_t, kerberos_initrc_exec_t;
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type kadmind_log_t, kadmind_tmp_t, kadmind_var_run_t;
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type krb5_conf_t, krb5_keytab_t, krb5kdc_conf_t;
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type krb5kdc_principal_t, krb5kdc_tmp_t;
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type krb5kdc_var_run_t, krb5_host_rcache_t;
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type kpropd_t;
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')
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allow $1 kadmind_t:process { ptrace signal_perms };
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ps_process_pattern($1, kadmind_t)
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allow $1 krb5kdc_t:process { ptrace signal_perms };
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ps_process_pattern($1, krb5kdc_t)
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allow $1 kpropd_t:process { ptrace signal_perms };
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ps_process_pattern($1, kpropd_t)
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init_labeled_script_domtrans($1, kerberos_initrc_exec_t)
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domain_system_change_exemption($1)
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role_transition $2 kerberos_initrc_exec_t system_r;
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allow $2 system_r;
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logging_list_logs($1)
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admin_pattern($1, kadmind_log_t)
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files_list_tmp($1)
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admin_pattern($1, kadmind_tmp_t)
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files_list_pids($1)
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admin_pattern($1, kadmind_var_run_t)
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admin_pattern($1, krb5_conf_t)
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admin_pattern($1, krb5_host_rcache_t)
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admin_pattern($1, krb5_keytab_t)
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admin_pattern($1, krb5kdc_principal_t)
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admin_pattern($1, krb5kdc_tmp_t)
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admin_pattern($1, krb5kdc_var_run_t)
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')
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