EXTERNAL: Re: modified CSCF profile

Kordell, Luke T luke.t.kordell at lmco.com
Mon Jul 28 19:53:11 UTC 2014


Hi Shawn, 

     Thank you for the input! Would you like me to re-submit this patch with all the refine values at the top? I do plan on re-enabling those rules which is why I switched them to false. 


Luke K 
________________________________________
From: scap-security-guide-bounces at lists.fedorahosted.org [scap-security-guide-bounces at lists.fedorahosted.org] on behalf of Shawn Wells [shawn at redhat.com]
Sent: Monday, July 28, 2014 3:47 PM
To: scap-security-guide at lists.fedorahosted.org
Subject: EXTERNAL: Re: modified CSCF profile

On 7/28/14, 10:06 AM, Kordell, Luke T wrote:
> From af8390d1f2a571031f85ebb91a004c3b5b343bb3 Mon Sep 17 00:00:00 2001
> From: root <root at lukek.home>
> Date: Sun, 27 Jul 2014 10:54:02 -0400
> Subject: [PATCH 2/2] Modified CSCF profile by un-selecting rules until
> they can be modified to work with our systems.
>
> ---
>  RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml |   87
> ++++++++++++-----------------
>  1 files changed, 36 insertions(+), 51 deletions(-)
>
> diff --git a/RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml
> b/RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml
> index 5485faf..481bdcf 100644
> --- a/RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml
> +++ b/RHEL/6/input/profiles/CSCF-RHEL6-MLS.xml
> @@ -1,18 +1,10 @@
>  <Profile id="CSCF-RHEL6-MLS">
>  <title>CSCF RHEL6 MLS Core Baseline</title>
> -<description> This profile reflects the Centralized Super Computing
> Facility
> -(CSCF) baseline for Red Hat Enterprise Linux 6. This baseline has
> received
> -government ATO through the ICD 503 process, utilizing the CNSSI 1253
> cross
> -domain overlay. This profile should be considered in active development.
> -Additional tailoring will be needed, such as the creation of RBAC roles
> -for production deployment.</description>
> -
> -<refine-value idref="var_auditd_max_log_file_action"
> selector="keep_logs" />
> -<refine-value idref="var_accounts_max_concurrent_login_sessions"
> selector="3" />
> -<refine-value idref="var_accounts_maximum_age_login_defs"
> selector="180" />
> -<refine-value idref="var_accounts_password_minlen_login_defs"
> selector="12" />
> -<refine-value idref="var_selinux_policy_name" selector="mls" />
> -
> +<description> This profile reflects the Centralized Super Computing
> Facility (CSCF) baseline for Red Hat Enterprise Linux 6. This baseline
> has received government ATO through the ICD 503 process, utilizing the
> CNSSI 1253 cross domain overlay. This profile should be considered in
> active development. Additional tailoring will be needed, such as the
> creation of RBAC roles for production deployment.</description>

Technically having one super long string is allowed, but it's also super
annoying. Having line breaks every 80ish characters allows for easier
editing.


> +<select idref="partition_for_tmp" selected="true" />
> +<select idref="partition_for_var" selected="true" />
> +<select idref="partition_for_var_log" selected="false" />
> +<select idref="partition_for_home" selected="false" />
>  <select idref="account_disable_post_pw_expiration" selected="true" />
>  <select idref="account_temp_expire_date" selected="true" />
>  <select idref="aide_build_database" selected="true" />
> @@ -20,7 +12,6 @@ for production deployment.</description>
>  <select idref="audit_account_changes" selected="true" />
>  <select idref="audit_config_immutable" selected="true" />
>  <select idref="audit_rules_unsuccessful_file_modification"
> selected="true" />
> -<select idref="audit_rules_file_deletion_events" selected="true" />
>  <select idref="audit_kernel_module_loading" selected="true" />
>  <select idref="file_permissions_var_log_audit" selected="true" />
>  <select idref="audit_logs_rootowner" selected="true" />
> @@ -29,7 +20,7 @@ for production deployment.</description>
>  <select idref="audit_manual_session_edits" selected="true" />
>  <select idref="audit_media_exports" selected="true" />
>  <select idref="audit_network_modifications" selected="true" />
> -<select idref="audit_privileged_commands" selected="true" />
> +<select idref="audit_privileged_commands" selected="false" />
>  <select idref="audit_rules_dac_modification_chmod" selected="true" />
>  <select idref="audit_rules_dac_modification_chown" selected="true" />
>  <select idref="audit_rules_dac_modification_fchmod" selected="true" />
> @@ -50,21 +41,21 @@ for production deployment.</description>
>  <select idref="audit_rules_time_watch_localtime" selected="true" />
>  <select idref="audit_sysadmin_actions" selected="true" />
>  <select idref="bios_disable_usb_boot" selected="true" />
> -<select idref="bootloader_nousb_argument" selected="true" />
>  <select idref="bootloader_password" selected="true" />
>  <select idref="auditd_data_retention_action_mail_acct" selected="true" />
>  <select idref="auditd_data_retention_admin_space_left_action"
> selected="true" />
>  <select idref="configure_auditd_audispd" selected="true" />
>  <select idref="configure_auditd_max_log_file" selected="true" />
>  <select idref="configure_auditd_max_log_file_action" selected="true" />
> +<refine-value idref="var_auditd_max_log_file_action"
> selector="keep_logs" />

Keeping refine values at the top of the profile allows one to quickly
identify what (if any) tailoring can be done. Would strongly encourage
keeping refine values where they are now.

>  <select idref="configure_auditd_num_logs" selected="true" />
>  <select idref="auditd_data_retention_space_left_action"
> selected="true" />
> -<select idref="cups_disable_browsing" selected="true" />
> +<!-- removed for compliance, broken rule -->  <select
> idref="cups_disable_browsing" selected="false" />
> <select idref="cups_disable_printserver" selected="true" />
>  <select idref="deactivate_wireless_interfaces" selected="true" />
> -<select idref="accounts_passwords_pam_faillock_unlock_time"
> selected="true" />
> -<select idref="accounts_passwords_pam_faillock_deny" selected="true" />
> -<select idref="accounts_passwords_pam_fail_interval" selected="true" />
> +<select idref="accounts_passwords_pam_faillock_unlock_time"
> selected="false" />
> +<!--  removed for compliance rhel case # 01131821 --> <select
> idref="accounts_passwords_pam_faillock_deny" selected="false" />
> +<!-- removed for compliance rhel case # 01131821--> <select
> idref="accounts_passwords_pam_fail_interval" selected="false" />
>  <select idref="dhcp_server_deny_bootp" selected="true" />
>  <select idref="dhcp_server_deny_decline" selected="true" />
>  <select idref="dhcp_server_disable_ddns" selected="true" />
> @@ -74,7 +65,6 @@ for production deployment.</description>
>  <select idref="disable_dhcp_server" selected="true" />
>  <select idref="disable_dns_server" selected="true" />
>  <select idref="disable_gnome_thumbnailers" selected="true" />
> -<select idref="disable_httpd" selected="true" />
>  <select idref="kernel_module_ipv6_option_disabled" selected="true" />
>  <select idref="kernel_module_cramfs_disabled" selected="true" />
>  <select idref="kernel_module_freevxfs_disabled" selected="true" />
> @@ -82,7 +72,7 @@ for production deployment.</description>
>  <select idref="kernel_module_hfsplus_disabled" selected="true" />
>  <select idref="kernel_module_jffs2_disabled" selected="true" />
>  <select idref="kernel_module_squashfs_disabled" selected="true" />
> -<select idref="kernel_module_udf_disabled" selected="true" />
> +<!-- disaled for compliance <select
> idref="kernel_module_udf_disabled" selected="true" /> -->
>  <select idref="disable_prelink" selected="true" />
>  <select idref="kernel_module_dccp_disabled" selected="true" />
>  <select idref="kernel_module_rds_disabled" selected="true" />
> @@ -97,13 +87,12 @@ for production deployment.</description>
>  <select idref="sysctl_net_ipv4_conf_all_accept_redirects"
> selected="true" />
>  <select idref="sysctl_net_ipv4_conf_all_secure_redirects"
> selected="true" />
>  <select idref="sysctl_ipv4_ip_forward" selected="true" />
> -<select idref="disable_telnet_service" selected="true" />
>  <select idref="disable_tftp" selected="true" />
>  <select idref="disable_vsftpd" selected="true" />
>  <select idref="disable_ypbind" selected="true" />
>  <select idref="dns_server_authenticate_zone_transfers" selected="true" />
>  <select idref="enable_auditd_bootloader" selected="true" />
> -<select idref="enable_gdm_login_banner" selected="true" />
> +<select idref="enable_gdm_login_banner" selected="false" />

Since the CSCF profile isn't inheriting from anything, you could delete
the line vs marking selected=false (unless this will be switched back on
later, and is just a placeholder, such as the ones marked as disabled
for RHT tickets)


>  <select idref="enable_screensaver_after_idle" selected="true" />
>  <select idref="enable_screensaver_password_lock" selected="true" />
>  <select idref="enable_selinux_bootloader" selected="true" />
> @@ -117,7 +106,7 @@ for production deployment.</description>
>  <select idref="file_groupowner_etc_group" selected="true" />
>  <select idref="file_groupowner_etc_gshadow" selected="true" />
>  <select idref="file_groupowner_etc_passwd" selected="true" />
> -<select idref="groupowner_rsyslog_files" selected="true" />
> +<select idref="groupowner_rsyslog_files" selected="false" />
>  <select idref="groupowner_shadow_file" selected="true" />
>  <select idref="httpd_conf_files_permissions" selected="true" />
>  <select idref="httpd_logs_permissions" selected="true" />
> @@ -133,34 +122,36 @@ for production deployment.</description>
>  <select idref="mount_option_tmp_nodev" selected="true" />
>  <select idref="mount_option_tmp_noexec" selected="true" />
>  <select idref="mount_option_tmp_nosuid" selected="true" />
> -<select idref="mount_option_var_tmp_bind_var" selected="true" />
> +<select idref="mount_option_var_tmp_bind_var" selected="false" />
>  <select idref="mountopt_nodev_on_nonroot_partitions" selected="true" />
>  <!-- we do not have any removable media that has a mount point
> defined in fstab <select
> idref="mountopt_nodev_on_removable_partitions" selected="true" /> -->
> -<select idref="mount_option_noexec_removable_partitions"
> selected="true" />
> -<select idref="mountopt_nosuid_on_removable_partitions"
> selected="true" />
> +<select idref="mount_option_noexec_removable_partitions"
> selected="false" />
> +<select idref="mountopt_nosuid_on_removable_partitions"
> selected="false" />
>  <select idref="accounts_max_concurrent_login_sessions" selected="true" />
> +<refine-value idref="var_accounts_max_concurrent_login_sessions"
> selector="4" />
>  <select idref="network_disable_zeroconf" selected="true" />
>  <select idref="network_ipv6_disable_rpc" selected="true" />
>  <select idref="network_sniffer_disabled" selected="true" />
>  <select idref="no_empty_passwords" selected="true" />
> -<select idref="no_files_unowned_by_group" selected="true" />
> - <select idref="no_files_unowned_by_user" selected="true" />
> +<select idref="no_files_unowned_by_group" selected="false" />
> +<select idref="no_files_unowned_by_user" selected="false" />
>  <select idref="accounts_password_all_shadowed" selected="true" />
>  <select idref="no_netrc_files" selected="true" />
>  <select idref="accounts_no_uid_except_zero" selected="true" />
>  <select idref="no_direct_root_logins" selected="true" />
>  <select idref="no_unpackaged_sgid_files" selected="true" />
> -<select idref="no_unpackaged_suid_files" selected="true" />
> +<select idref="no_unpackaged_suid_files" selected="false" />
>  <select idref="ntpd_specify_multiple_servers" selected="true" />
>  <select idref="ntpd_specify_remote_server" selected="true" />
>  <select idref="package_aide_installed" selected="true" />
>  <select idref="package_openldap-servers_removed" selected="true" />
>  <select idref="package_rsyslog_installed" selected="true" />
>  <select idref="package_sendmail_removed" selected="true" />
> -<select idref="partition_for_var_log" selected="true" />
>  <select idref="partition_for_var_log_audit" selected="true" />
>  <select idref="accounts_maximum_age_login_defs" selected="true" />
> +<refine-value idref="var_accounts_maximum_age_login_defs"
> selector="180" />
>  <select idref="accounts_password_minlen_login_defs" selected="true" />
> +<refine-value idref="var_accounts_password_minlen_login_defs"
> selector="12" />
>  <select idref="password_require_consecrepeat" selected="true" />
>  <select idref="accounts_password_pam_cracklib_difok" selected="true" />
>  <select idref="accounts_password_pam_cracklib_dcredit" selected="true" />
> @@ -175,14 +166,14 @@ for production deployment.</description>
>  <select idref="postfix_network_listening" selected="true" />
>  <select idref="securetty_root_login_console_only" selected="true" />
>  <select idref="restrict_serial_port_logins" selected="true" />
> -<select idref="rpm_verify_hashes" selected="true" />
> -<select idref="rpm_verify_permissions" selected="true" />
> +<select idref="rpm_verify_hashes" selected="false" />
> +<select idref="rpm_verify_permissions" selected="false" />
>  <select idref="rsyslog_accept_remote_messages_none" selected="true" />
>  <select idref="rsyslog_accept_remote_messages_tcp" selected="true" />
>  <select idref="rsyslog_accept_remote_messages_udp" selected="true" />
> -<select idref="rsyslog_send_messages_to_logserver" selected="true" />
> +<select idref="rsyslog_send_messages_to_logserver" selected="false" />
>  <select idref="selinux_confinement_of_daemons" selected="true" />
> -<select idref="selinux_all_devicefiles_labeled" selected="true" />
> +<select idref="selinux_all_devicefiles_labeled" selected="false" />
>  <select idref="service_abrtd_disabled" selected="true" />
>  <select idref="service_acpid_disabled" selected="true" />
>  <select idref="service_atd_disabled" selected="true" />
> @@ -197,8 +188,7 @@ for production deployment.</description>
>  <select idref="service_haldaemon_disabled" selected="true" />
>  <!-- not necessary if ipv6 is disabled <select
> idref="service_ip6tables_enabled" selected="true" /> -->
>  <select idref="service_iptables_enabled" selected="true" />
> -<select idref="service_irqbalance_enabled" selected="true" />
> -<select idref="service_kdump_disabled" selected="true" />
> +<!-- removed for compliance, we use sgi tool costome rule coming -->
> <select idref="service_irqbalance_enabled" selected="false" />
>  <select idref="service_mdmonitor_disabled" selected="true" />
>  <select idref="service_messagebus_disabled" selected="true" />
>  <select idref="service_netconsole_disabled" selected="true" />
> @@ -218,16 +208,16 @@ for production deployment.</description>
>  <select idref="service_sysstat_disabled" selected="true" />
>  <select idref="set_blank_screensaver" selected="true" />
>  <select idref="umask_for_daemons" selected="true" />
> -<!-- will need to be refined -->
>  <select idref="set_gdm_login_banner_text" selected="true" />
>  <!-- not necessary if ipv6 is disabled<select
> idref="set_ip6tables_default_rule" selected="true" /> -->
>  <select idref="set_iptables_default_rule" selected="true" />
>  <select idref="set_iptables_default_rule_forward" selected="true" />
> -<select idref="set_password_hashing_algorithm_systemauth"
> selected="true" />
> +<!-- remove for compliance, faulty rule bug to community <select
> idref="set_password_hashing_algorithm_systemauth" selected="true" /> -->
>  <select idref="set_password_hashing_algorithm_logindefs"
> selected="true" />
>  <select idref="set_password_hashing_algorithm_libuserconf"
> selected="true" />
> -<select idref="set_screensaver_inactivity_timeout" selected="true" />
> +<!-- removed for compliance, bad rule --> <select
> idref="set_screensaver_inactivity_timeout" selected="false" />
>  <select idref="selinux_policytype" selected="true" />
> +<refine-value idref="var_selinux_policy_name" selector="mls" />
>  <select idref="selinux_state" selected="true" />
>  <select idref="sysctl_net_ipv4_conf_all_rp_filter" selected="true" />
>  <select idref="sysctl_net_ipv4_conf_default_accept_redirects"
> selected="true" />
> @@ -240,38 +230,33 @@ for production deployment.</description>
>  <select idref="sysctl_net_ipv4_conf_all_log_martians" selected="true" />
>  <select idref="sysctl_net_ipv4_icmp_ignore_bogus_error_responses"
> selected="true" />
>  <!-- not necessary if ipv6 is disabled <select
> idref="set_sysctl_net_ipv6_conf_default_accept_ra" selected="true" /> -->
> -<select idref="set_system_login_banner" selected="true" />
> +<select idref="set_system_login_banner" selected="false" />
>  <select idref="sshd_allow_only_protocol2" selected="true" />
>  <select idref="sshd_disable_root_login" selected="true" />
>  <select idref="sshd_use_approved_ciphers" selected="true" />
> -<select idref="sticky_world_writable_dirs" selected="true" />
> +<select idref="sticky_world_writable_dirs" selected="false" />
>  <select idref="tftpd_uses_secure_mode" selected="true" />
>  <select idref="uninstall_bind" selected="true" />
>  <select idref="uninstall_dhcp_server" selected="true" />
> -<!-- not necessary for UVs -->
> -<select idref="uninstall_httpd" selected="true" />
>  <select idref="uninstall_rsh-server" selected="true" />
> -<select idref="uninstall_telnet_server" selected="true" />
>  <select idref="uninstall_tftp-server" selected="true" />
>  <select idref="uninstall_vsftpd" selected="true" />
>  <select idref="uninstall_ypserv" selected="true" />
> -<!-- the following may need refinement -->
>  <select idref="file_owner_etc_group" selected="true" />
>  <select idref="file_owner_etc_gshadow" selected="true" />
>  <select idref="file_owner_etc_passwd" selected="true" />
> -<select idref="userowner_rsyslog_files" selected="true" />
> +<select idref="userowner_rsyslog_files" selected="false" />
>  <select idref="userowner_shadow_file" selected="true" />
>  <select idref="wireless_disable_in_bios" selected="true" />
> -<select idref="world_writable_files_system_ownership" selected="true" />
>  <select idref="disable_interactive_boot" selected="true" />
>  <select idref="install_hids" selected="true" />
>  <select idref="install_antivirus" selected="true" />
> -<select idref="sysctl_kernel_exec_shield" selected="true" />
> +<select idref="enable_execshield_settings" selected="true" />
>  <select idref="sysctl_kernel_randomize_va_space" selected="true" />
>  <select idref="bios_enable_execution_restrictions" selected="true" />
>  <select idref="sysctl_fs_suid_dumpable" selected="true" />
>  <select idref="disable_xwindows_with_runlevel" selected="true" />
> -<select idref="world_writeable_files" selected="true" />
> +<select idref="world_writeable_files" selected="false" />
>  </Profile>
>

The patch is syntactically correct, but I'd urge you to keep the
refine-value tags up top.


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