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scap-security-guide/SOURCES/scap-security-guide-0.1.61-update_RHEL_08_020041-PR_8146.patch
CentOS Sources 30c595cb4f import scap-security-guide-0.1.60-4.el9
2022-03-01 10:14:31 +00:00

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diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh
index 737d725872d..08b62057bde 100644
--- a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/bash/shared.sh
@@ -1,7 +1,11 @@
# platform = multi_platform_all
+# reboot = true
+# strategy = enable
+# complexity = low
+# disruption = low
if ! grep -x ' case "$name" in sshd|login) exec tmux ;; esac' /etc/bashrc; then
- cat >> /etc/bashrc <<'EOF'
+ cat >> /etc/profile.d/tmux.sh <<'EOF'
if [ "$PS1" ]; then
parent=$(ps -o ppid= -p $$)
name=$(ps -o comm= -p $parent)
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml
index 00ac349e292..4cb2f9e0e04 100644
--- a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/oval/shared.xml
@@ -4,21 +4,27 @@
<criteria comment="Check exec tmux configured at the end of bashrc" operator="AND">
<criterion comment="check tmux is configured to exec on the last line of /etc/bashrc"
test_ref="test_configure_bashrc_exec_tmux" />
+ <criterion comment="check tmux is running" test_ref="test_tmux_running"/>
</criteria>
</definition>
- <ind:textfilecontent54_test check="only one" check_existence="only_one_exists"
+ <ind:textfilecontent54_test check="all" check_existence="all_exist"
comment="check tmux is configured to exec on the last line of /etc/bashrc"
id="test_configure_bashrc_exec_tmux" version="1">
<ind:object object_ref="obj_configure_bashrc_exec_tmux" />
- <ind:state state_ref="state_configure_bashrc_exec_tmux" />
</ind:textfilecontent54_test>
<ind:textfilecontent54_object id="obj_configure_bashrc_exec_tmux" version="1">
<ind:behaviors singleline="true" multiline="false" />
- <ind:filepath>/etc/bashrc</ind:filepath>
- <ind:pattern operation="pattern match">^(.*)$</ind:pattern>
- <ind:instance datatype="int">1</ind:instance>
+ <ind:filepath operation="pattern match">^/etc/bashrc$|^/etc/profile\.d/.*$</ind:filepath>
+ <ind:pattern operation="pattern match">if \[ "\$PS1" \]; then\n\s+parent=\$\(ps -o ppid= -p \$\$\)\n\s+name=\$\(ps -o comm= -p \$parent\)\n\s+case "\$name" in sshd\|login\) exec tmux ;; esac\nfi</ind:pattern>
+ <ind:instance datatype="int" operation="greater than or equal">1</ind:instance>
</ind:textfilecontent54_object>
- <ind:textfilecontent54_state id="state_configure_bashrc_exec_tmux" version="1">
- <ind:subexpression datatype="string" operation="pattern match">if \[ "\$PS1" \]; then\n\s+parent=\$\(ps -o ppid= -p \$\$\)\n\s+name=\$\(ps -o comm= -p \$parent\)\n\s+case "\$name" in sshd\|login\) exec tmux ;; esac\nfi</ind:subexpression>
- </ind:textfilecontent54_state>
+
+ <unix:process58_test check="all" id="test_tmux_running" comment="is tmux running" version="1">
+ <unix:object object_ref="obj_tmux_running"/>
+ </unix:process58_test>
+
+ <unix:process58_object id="obj_tmux_running" version="1">
+ <unix:command_line operation="pattern match">^tmux(?:|[\s]+.*)$</unix:command_line>
+ <unix:pid datatype="int" operation="greater than">0</unix:pid>
+ </unix:process58_object>
</def-group>
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml
index 3ba0f4a2d8f..7afc5fc5e6b 100644
--- a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/rule.yml
@@ -7,12 +7,20 @@ title: 'Support session locking with tmux'
description: |-
The <tt>tmux</tt> terminal multiplexer is used to implement
automatic session locking. It should be started from
- <tt>/etc/bashrc</tt>.
+ <tt>/etc/bashrc</tt> or drop-in files within <tt>/etc/profile.d/</tt>.
+ Additionally it must be ensured that the <tt>tmux</tt> process is running
+ and it can be verified with the following command:
+ <pre>ps all | grep tmux | grep -v grep</pre>
rationale: |-
Unlike <tt>bash</tt> itself, the <tt>tmux</tt> terminal multiplexer
provides a mechanism to lock sessions after period of inactivity.
+warnings:
+ - general: |-
+ The remediation does not start the tmux process, so it must be
+ manually started or have the system rebooted after applying the fix.
+
severity: medium
identifiers:
@@ -26,17 +34,21 @@ references:
stigid@ol8: OL08-00-020041
stigid@rhel8: RHEL-08-020041
-ocil_clause: 'exec tmux is not present at the end of bashrc'
+ocil_clause: 'exec tmux is not present at the end of bashrc or tmux process is not running'
ocil: |-
To verify that tmux is configured to execute,
run the following command:
- <pre>$ grep -A1 -B3 "case ..name. in sshd|login) exec tmux ;; esac" /etc/bashrc</pre>
+ <pre>$ grep -A1 -B3 "case ..name. in sshd|login) exec tmux ;; esac" /etc/bashrc /etc/profile.d/*</pre>
The output should return the following:
<pre>if [ "$PS1" ]; then
parent=$(ps -o ppid= -p $$)
name=$(ps -o comm= -p $parent)
case "$name" in sshd|login) exec tmux ;; esac
fi</pre>
+ To verify that the tmux process is running,
+ run the following command:
+ <pre>ps all | grep tmux | grep -v grep</pre>
+ If the command does not produce output, this is a finding.
platform: machine
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value.pass.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value.pass.sh
new file mode 100644
index 00000000000..221c18665ef
--- /dev/null
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value.pass.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+# packages = tmux
+
+cat >> /etc/bashrc <<'EOF'
+if [ "$PS1" ]; then
+ parent=$(ps -o ppid= -p $$)
+ name=$(ps -o comm= -p $parent)
+ case "$name" in sshd|login) exec tmux ;; esac
+fi
+EOF
+
+tmux new-session -s root -d
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value_d_directory.pass.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value_d_directory.pass.sh
new file mode 100644
index 00000000000..1702bb17e79
--- /dev/null
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/correct_value_d_directory.pass.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+# packages = tmux
+
+
+cat >> /etc/profile.d/00-complianceascode.conf <<'EOF'
+if [ "$PS1" ]; then
+ parent=$(ps -o ppid= -p $$)
+ name=$(ps -o comm= -p $parent)
+ case "$name" in sshd|login) exec tmux ;; esac
+fi
+EOF
+
+tmux new-session -s root -d
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/duplicate_value_multiple_files.pass.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/duplicate_value_multiple_files.pass.sh
new file mode 100644
index 00000000000..16d4acfcb5a
--- /dev/null
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/duplicate_value_multiple_files.pass.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+# packages = tmux
+
+cat >> /etc/profile.d/00-complianceascode.conf <<'EOF'
+if [ "$PS1" ]; then
+ parent=$(ps -o ppid= -p $$)
+ name=$(ps -o comm= -p $parent)
+ case "$name" in sshd|login) exec tmux ;; esac
+fi
+EOF
+
+cat >> /etc/bashrc <<'EOF'
+if [ "$PS1" ]; then
+ parent=$(ps -o ppid= -p $$)
+ name=$(ps -o comm= -p $parent)
+ case "$name" in sshd|login) exec tmux ;; esac
+fi
+EOF
+
+tmux new-session -s root -d
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/tmux_not_running.fail.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/tmux_not_running.fail.sh
new file mode 100644
index 00000000000..6cb9d83efc5
--- /dev/null
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/tmux_not_running.fail.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+# packages = tmux
+# remediation = none
+
+cat >> /etc/bashrc <<'EOF'
+if [ "$PS1" ]; then
+ parent=$(ps -o ppid= -p $$)
+ name=$(ps -o comm= -p $parent)
+ case "$name" in sshd|login) exec tmux ;; esac
+fi
+EOF
+
+killall tmux || true
diff --git a/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/wrong_value.fail.sh b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/wrong_value.fail.sh
new file mode 100644
index 00000000000..f13a8b038e4
--- /dev/null
+++ b/linux_os/guide/system/accounts/accounts-physical/screen_locking/console_screen_locking/configure_bashrc_exec_tmux/tests/wrong_value.fail.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+# packages = tmux
+
+cat > /etc/bashrc <<'EOF'
+# /etc/bashrc
+
+# System wide functions and aliases
+# Environment stuff goes in /etc/profile
+
+# It's NOT a good idea to change this file unless you know what you
+# are doing. It's much better to create a custom.sh shell script in
+# /etc/profile.d/ to make custom changes to your environment, as this
+# will prevent the need for merging in future updates.
+
+# Prevent doublesourcing
+if [ -z "$BASHRCSOURCED" ]; then
+ BASHRCSOURCED="Y"
+
+ # are we an interactive shell?
+ if [ "$PS1" ]; then
+ if [ -z "$PROMPT_COMMAND" ]; then
+ case $TERM in
+ xterm*|vte*)
+ if [ -e /etc/sysconfig/bash-prompt-xterm ]; then
+ PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm
+ elif [ "${VTE_VERSION:-0}" -ge 3405 ]; then
+ PROMPT_COMMAND="__vte_prompt_command"
+ else
+ PROMPT_COMMAND='printf "\033]0;%s@%s:%s\007" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
+ fi
+ ;;
+ screen*)
+ if [ -e /etc/sysconfig/bash-prompt-screen ]; then
+ PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
+ else
+ PROMPT_COMMAND='printf "\033k%s@%s:%s\033\\" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
+ fi
+ ;;
+ *)
+ [ -e /etc/sysconfig/bash-prompt-default ] && PROMPT_COMMAND=/etc/sysconfig/bash-prompt-default
+ ;;
+ esac
+ fi
+ # Turn on parallel history
+ shopt -s histappend
+ history -a
+ # Turn on checkwinsize
+ shopt -s checkwinsize
+ [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "
+ # You might want to have e.g. tty in prompt (e.g. more virtual machines)
+ # and console windows
+ # If you want to do so, just add e.g.
+ # if [ "$PS1" ]; then
+ # PS1="[\u@\h:\l \W]\\$ "
+ # fi
+ # to your custom modification shell script in /etc/profile.d/ directory
+ fi
+
+ if ! shopt -q login_shell ; then # We're not a login shell
+ # Need to redefine pathmunge, it gets undefined at the end of /etc/profile
+ pathmunge () {
+ case ":${PATH}:" in
+ *:"$1":*)
+ ;;
+ *)
+ if [ "$2" = "after" ] ; then
+ PATH=$PATH:$1
+ else
+ PATH=$1:$PATH
+ fi
+ esac
+ }
+
+ # By default, we want umask to get set. This sets it for non-login shell.
+ # Current threshold for system reserved uid/gids is 200
+ # You could check uidgid reservation validity in
+ # /usr/share/doc/setup-*/uidgid file
+ if [ $UID -gt 199 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ]; then
+ umask 002
+ else
+ umask 022
+ fi
+
+ SHELL=/bin/bash
+ # Only display echos from profile.d scripts if we are no login shell
+ # and interactive - otherwise just process them to set envvars
+ for i in /etc/profile.d/*.sh; do
+ if [ -r "$i" ]; then
+ if [ "$PS1" ]; then
+ . "$i"
+ else
+ . "$i" >/dev/null
+ fi
+ fi
+ done
+
+ unset i
+ unset -f pathmunge
+ fi
+
+fi
+# vim:ts=4:sw=4
+EOF
+
+tmux new-session -s root -d
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