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scap-security-guide/SOURCES/scap-security-guide-0.1.58-RHEL_08_030730-PR_7323.patch

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import scap-security-guide-0.1.57-3.el8_4
2021-11-02 10:36:25 +00:00
From 2f4ddb4297f2a14e2bde3b32f76347e2bbe2cb2d Mon Sep 17 00:00:00 2001
From: Matthew Burket <mburket@redhat.com>
Date: Thu, 19 Aug 2021 09:47:42 -0500
Subject: [PATCH] Add new rule for RHEL-07-030330 and RHEL-08-030730
This new rule is copy of auditd_data_retention_space_left, but
setup to allow for percentages.
---
.../auditd_data_retention_space_left/rule.yml | 2 -
.../ansible/shared.yml | 15 ++++++
.../bash/shared.sh | 7 +++
.../oval/shared.xml | 32 +++++++++++++
.../rule.yml | 47 +++++++++++++++++++
.../tests/no_percent_sign.fail.sh | 6 +++
.../space_left_greater_than_minimum.pass.sh | 6 +++
.../tests/space_left_minimum_value.pass.sh | 6 +++
.../tests/space_left_not_enough.fail.sh | 6 +++
.../tests/space_left_not_there.fail.sh | 6 +++
.../var_auditd_space_left_percentage.var | 15 ++++++
products/rhel7/profiles/stig.profile | 3 +-
products/rhel8/profiles/stig.profile | 7 +--
shared/references/cce-redhat-avail.txt | 2 -
.../data/profile_stability/rhel8/stig.profile | 3 +-
.../profile_stability/rhel8/stig_gui.profile | 3 +-
16 files changed, 156 insertions(+), 10 deletions(-)
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/ansible/shared.yml
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/bash/shared.sh
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/oval/shared.xml
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/rule.yml
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/no_percent_sign.fail.sh
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_greater_than_minimum.pass.sh
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_minimum_value.pass.sh
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_enough.fail.sh
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_there.fail.sh
create mode 100644 linux_os/guide/system/auditing/configure_auditd_data_retention/var_auditd_space_left_percentage.var
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left/rule.yml b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left/rule.yml
index 7fd0470df8..a652d15d0d 100644
--- a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left/rule.yml
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left/rule.yml
@@ -39,8 +39,6 @@ references:
pcidss: Req-10.7
srg: SRG-OS-000343-GPOS-00134
stigid@ol7: OL07-00-030330
- stigid@rhel7: RHEL-07-030330
- stigid@rhel8: RHEL-08-030730
stigid@sle12: SLES-12-020030
stigid@sle15: SLES-15-030700
stigid@ubuntu2004: UBTU-20-010217
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/ansible/shared.yml b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/ansible/shared.yml
new file mode 100644
index 0000000000..ea52773bd3
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/ansible/shared.yml
@@ -0,0 +1,15 @@
+# platform = multi_platform_all
+# reboot = false
+# strategy = restrict
+# complexity = low
+# disruption = low
+{{{ ansible_instantiate_variables("var_auditd_space_left_percentage") }}}
+
+- name: Configure auditd space_left on Low Disk Space
+ lineinfile:
+ dest: /etc/audit/auditd.conf
+ line: "space_left = {{ var_auditd_space_left_percentage }}%"
+ regexp: '^\s*space_left\s*=\s*.*$'
+ state: present
+ create: yes
+ #notify: reload auditd
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/bash/shared.sh b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/bash/shared.sh
new file mode 100644
index 0000000000..6cc3e9ecbe
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/bash/shared.sh
@@ -0,0 +1,7 @@
+# platform = multi_platform_all
+. /usr/share/scap-security-guide/remediation_functions
+{{{ bash_instantiate_variables("var_auditd_space_left_percentage") }}}
+
+grep -q "^space_left[[:space:]]*=.*$" /etc/audit/auditd.conf && \
+ sed -i "s/^space_left[[:space:]]*=.*$/space_left = $var_auditd_space_left_percentage%/g" /etc/audit/auditd.conf || \
+ echo "space_left = $var_auditd_space_left_percentage%" >> /etc/audit/auditd.conf
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/oval/shared.xml b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/oval/shared.xml
new file mode 100644
index 0000000000..2fcd222d29
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/oval/shared.xml
@@ -0,0 +1,32 @@
+<def-group>
+ <definition class="compliance" id="{{{ rule_id }}}" version="2">
+ {{{ oval_metadata("space_left setting in /etc/audit/auditd.conf is set to at least a certain value") }}}
+
+ <criteria>
+ <criterion comment="space_left setting in auditd.conf" test_ref="test_auditd_data_retention_space_left_percentage" />
+ </criteria>
+
+ </definition>
+
+ <ind:textfilecontent54_test check="all" comment="admin space left action " id="test_auditd_data_retention_space_left_percentage" version="1">
+ <ind:object object_ref="object_auditd_data_retention_space_left_percentage" />
+ <ind:state state_ref="state_auditd_data_retention_space_left_percentage" />
+ </ind:textfilecontent54_test>
+
+ <ind:textfilecontent54_object id="object_auditd_data_retention_space_left_percentage" version="2">
+ <ind:filepath>/etc/audit/auditd.conf</ind:filepath>
+ <!-- Allow only space (exactly) as delimiter: https://fedorahosted.org/audit/browser/trunk/src/auditd-config.c#L426 -->
+ <!-- Require at least one space before and after the equal sign -->
+ <ind:pattern operation="pattern match">^[\s]*space_left[\s]+=[\s]+(\d+)%[\s]*$</ind:pattern>
+ <ind:instance datatype="int">1</ind:instance>
+ </ind:textfilecontent54_object>
+
+
+ <ind:textfilecontent54_state id="state_auditd_data_retention_space_left_percentage" version="1">
+ <ind:subexpression operation="greater than or equal" var_ref="var_auditd_space_left_percentage" datatype="int" />
+ </ind:textfilecontent54_state>
+
+ <external_variable comment="audit space_left setting" datatype="int" id="var_auditd_space_left_percentage" version="1" />
+
+
+</def-group>
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/rule.yml b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/rule.yml
new file mode 100644
index 0000000000..ea9d9fcc6b
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/rule.yml
@@ -0,0 +1,47 @@
+documentation_complete: true
+
+prodtype: fedora,rhel7,rhel8,rhel9
+
+title: 'Configure auditd space_left on Low Disk Space'
+
+description: |-
+ The <tt>auditd</tt> service can be configured to take an action
+ when disk space is running low but prior to running out of space completely.
+ Edit the file <tt>/etc/audit/auditd.conf</tt>. Add or modify the following line,
+ substituting <i>PERCENTAGE</i> appropriately:
+ <pre>space_left = <i>PERCENTAGE</i>%</pre>
+ Set this value to at least 25 to cause the system to
+ notify the user of an issue.
+
+rationale: |-
+ Notifying administrators of an impending disk space problem may allow them to
+ take corrective action prior to any disruption.
+
+severity: medium
+
+identifiers:
+ cce@rhel7: CCE-86056-9
+ cce@rhel8: CCE-86055-1
+
+references:
+ cis-csc: 1,11,12,13,14,15,16,19,2,3,4,5,6,7,8
+ cobit5: APO11.04,APO12.06,APO13.01,BAI03.05,BAI04.04,BAI08.02,DSS02.02,DSS02.04,DSS02.07,DSS03.01,DSS05.04,DSS05.07,MEA02.01
+ disa: CCI-001855
+ isa-62443-2009: 4.2.3.10,4.3.3.3.9,4.3.3.5.8,4.3.4.4.7,4.3.4.5.6,4.3.4.5.7,4.3.4.5.8,4.4.2.1,4.4.2.2,4.4.2.4
+ isa-62443-2013: 'SR 2.10,SR 2.11,SR 2.12,SR 2.8,SR 2.9,SR 6.1,SR 7.1,SR 7.2'
+ iso27001-2013: A.12.1.3,A.12.4.1,A.12.4.2,A.12.4.3,A.12.4.4,A.12.7.1,A.16.1.4,A.16.1.5,A.16.1.7,A.17.2.1
+ nist: AU-5(b),AU-5(2),AU-5(1),AU-5(4),CM-6(a)
+ nist-csf: DE.AE-3,DE.AE-5,PR.DS-4,PR.PT-1,RS.AN-1,RS.AN-4
+ pcidss: Req-10.7
+ srg: SRG-OS-000343-GPOS-00134
+ stigid@rhel7: RHEL-07-030330
+ stigid@rhel8: RHEL-08-030730
+ vmmsrg: SRG-OS-000343-VMM-001240
+
+ocil_clause: 'the system is not configured with a specific percentage to notify administrators of an issue'
+
+ocil: |-
+ Inspect <tt>/etc/audit/auditd.conf</tt> and locate the following line to
+ determine if the system is configured correctly:
+ <pre>space_left <i>PERCENTAGE</i>%</pre>
+
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/no_percent_sign.fail.sh b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/no_percent_sign.fail.sh
new file mode 100644
index 0000000000..2e90ce1d7b
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/no_percent_sign.fail.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# variables = var_auditd_space_left_percentage=25
+
+. $SHARED/auditd_utils.sh
+prepare_auditd_test_enviroment
+set_parameters_value /etc/audit/auditd.conf "space_left" "25"
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_greater_than_minimum.pass.sh b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_greater_than_minimum.pass.sh
new file mode 100644
index 0000000000..135d6e4258
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_greater_than_minimum.pass.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# variables = var_auditd_space_left_percentage=25
+
+. $SHARED/auditd_utils.sh
+prepare_auditd_test_enviroment
+set_parameters_value /etc/audit/auditd.conf "space_left" "35%"
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_minimum_value.pass.sh b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_minimum_value.pass.sh
new file mode 100644
index 0000000000..10d652e80e
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_minimum_value.pass.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# variables = var_auditd_space_left_percentage=25
+
+. $SHARED/auditd_utils.sh
+prepare_auditd_test_enviroment
+set_parameters_value /etc/audit/auditd.conf "space_left" "25%"
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_enough.fail.sh b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_enough.fail.sh
new file mode 100644
index 0000000000..0bf7694b15
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_enough.fail.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# variables = var_auditd_space_left_percentage=25
+
+. $SHARED/auditd_utils.sh
+prepare_auditd_test_enviroment
+set_parameters_value /etc/audit/auditd.conf "space_left" "15%"
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_there.fail.sh b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_there.fail.sh
new file mode 100644
index 0000000000..34ac5595c6
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/auditd_data_retention_space_left_percentage/tests/space_left_not_there.fail.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# variables = var_auditd_space_left_percentage=25
+
+. $SHARED/auditd_utils.sh
+prepare_auditd_test_enviroment
+delete_parameter /etc/audit/auditd.conf "space_left"
diff --git a/linux_os/guide/system/auditing/configure_auditd_data_retention/var_auditd_space_left_percentage.var b/linux_os/guide/system/auditing/configure_auditd_data_retention/var_auditd_space_left_percentage.var
new file mode 100644
index 0000000000..427a1d4bfa
--- /dev/null
+++ b/linux_os/guide/system/auditing/configure_auditd_data_retention/var_auditd_space_left_percentage.var
@@ -0,0 +1,15 @@
+documentation_complete: true
+
+title: 'The percentage remaining in disk space before prompting space_left_action'
+
+description: 'The setting for space_left as a percentage in /etc/audit/auditd.conf'
+
+type: number
+
+interactive: true
+
+options:
+ 25pc: 25
+ 50pc: 50
+ 75pc: 75
+ default: 25
diff --git a/products/rhel7/profiles/stig.profile b/products/rhel7/profiles/stig.profile
index 9ca1360005..67e22982cd 100644
--- a/products/rhel7/profiles/stig.profile
+++ b/products/rhel7/profiles/stig.profile
@@ -50,6 +50,7 @@ selections:
- var_removable_partition=dev_cdrom
- var_auditd_action_mail_acct=root
- var_auditd_space_left_action=email
+ - var_auditd_space_left_percentage=25pc
- var_accounts_user_umask=077
- var_password_pam_retry=3
- var_accounts_max_concurrent_login_sessions=10
@@ -178,8 +179,8 @@ selections:
- auditd_audispd_configure_remote_server
- auditd_audispd_encrypt_sent_records
- auditd_audispd_disk_full_action
- - auditd_data_retention_space_left
- auditd_data_retention_space_left_action
+ - auditd_data_retention_space_left_percentage
- auditd_data_retention_action_mail_acct
- audit_rules_suid_privilege_function
- audit_rules_dac_modification_chown
diff --git a/products/rhel8/profiles/stig.profile b/products/rhel8/profiles/stig.profile
index 36f384621a..10dbc1501b 100644
--- a/products/rhel8/profiles/stig.profile
+++ b/products/rhel8/profiles/stig.profile
@@ -65,7 +65,7 @@ selections:
- var_auditd_action_mail_acct=root
- var_time_service_set_maxpoll=18_hours
- var_accounts_maximum_age_login_defs=60
- - var_auditd_space_left=250MB
+ - var_auditd_space_left_percentage=25pc
- var_auditd_space_left_action=email
- var_auditd_disk_error_action=halt
- var_auditd_max_log_file_action=syslog
@@ -922,8 +922,9 @@ selections:
- rsyslog_encrypt_offload_actionsendstreamdriverauthmode
# RHEL-08-030730
- # this rule expects configuration in MB instead percentage as how STIG demands
- # - auditd_data_retention_space_left
+ - auditd_data_retention_space_left_percentage
+
+ # RHEL-08-030731
- auditd_data_retention_space_left_action
# RHEL-08-030740
diff --git a/shared/references/cce-redhat-avail.txt b/shared/references/cce-redhat-avail.txt
index 6c33c2e85f..fcb8125ca4 100644
--- a/shared/references/cce-redhat-avail.txt
+++ b/shared/references/cce-redhat-avail.txt
@@ -170,8 +170,6 @@ CCE-86051-0
CCE-86052-8
CCE-86053-6
CCE-86054-4
-CCE-86055-1
-CCE-86056-9
CCE-86057-7
CCE-86058-5
CCE-86059-3
diff --git a/tests/data/profile_stability/rhel8/stig.profile b/tests/data/profile_stability/rhel8/stig.profile
index f3e6c4fa1a..09a5bc3174 100644
--- a/tests/data/profile_stability/rhel8/stig.profile
+++ b/tests/data/profile_stability/rhel8/stig.profile
@@ -140,6 +140,7 @@ selections:
- auditd_data_retention_action_mail_acct
- auditd_data_retention_max_log_file_action
- auditd_data_retention_space_left_action
+- auditd_data_retention_space_left_percentage
- auditd_local_events
- auditd_log_format
- auditd_name_format
@@ -422,7 +423,7 @@ selections:
- var_auditd_action_mail_acct=root
- var_time_service_set_maxpoll=18_hours
- var_accounts_maximum_age_login_defs=60
-- var_auditd_space_left=250MB
+- var_auditd_space_left_percentage=25pc
- var_auditd_space_left_action=email
- var_auditd_disk_error_action=halt
- var_auditd_max_log_file_action=syslog
diff --git a/tests/data/profile_stability/rhel8/stig_gui.profile b/tests/data/profile_stability/rhel8/stig_gui.profile
index b5b60349a8..5b631a3fe0 100644
--- a/tests/data/profile_stability/rhel8/stig_gui.profile
+++ b/tests/data/profile_stability/rhel8/stig_gui.profile
@@ -151,6 +151,7 @@ selections:
- auditd_data_retention_action_mail_acct
- auditd_data_retention_max_log_file_action
- auditd_data_retention_space_left_action
+- auditd_data_retention_space_left_percentage
- auditd_local_events
- auditd_log_format
- auditd_name_format
@@ -432,7 +433,7 @@ selections:
- var_auditd_action_mail_acct=root
- var_time_service_set_maxpoll=18_hours
- var_accounts_maximum_age_login_defs=60
-- var_auditd_space_left=250MB
+- var_auditd_space_left_percentage=25pc
- var_auditd_space_left_action=email
- var_auditd_disk_error_action=halt
- var_auditd_max_log_file_action=syslog
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