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https://github.com/ovh/debian-cis.git
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32886d3a3d
* Replace CIS_ROOT_DIR by a more flexible system * Try to adapt the logic change to the functional tests
104 lines
3.1 KiB
Bash
Executable File
104 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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# run-shellcheck
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#
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# Legacy CIS Debian Hardening
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#
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#
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# 99.2.2 Ensure telnet server is not enabled (Scored)
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#
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# Note: this check is not anymore in CIS hardening but we decided to keep it anyway
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set -e # One error, it's over
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set -u # One variable unset, it's over
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# shellcheck disable=2034
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HARDENING_LEVEL=2
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# shellcheck disable=2034
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DESCRIPTION="Ensure telnet server is not enabled. Recommended alternative : sshd (OpenSSH-server)."
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# Based on aptitude search '~Ptelnet-server'
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PACKAGES='telnetd inetutils-telnetd telnetd-ssl krb5-telnetd heimdal-servers'
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FILE='/etc/inetd.conf'
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PATTERN='^telnet'
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# This function will be called if the script status is on enabled / audit mode
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audit() {
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for PACKAGE in $PACKAGES; do
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is_pkg_installed "$PACKAGE"
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if [ "$FNRET" = 0 ]; then
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warn "$PACKAGE is installed, checking configuration"
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does_file_exist "$FILE"
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if [ "$FNRET" != 0 ]; then
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ok "$FILE does not exist"
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else
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does_pattern_exist_in_file "$FILE" "$PATTERN"
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if [ "$FNRET" = 0 ]; then
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crit "$PATTERN exists, $PACKAGE services are enabled!"
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else
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ok "$PATTERN is not present in $FILE"
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fi
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fi
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else
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ok "$PACKAGE is absent"
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fi
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done
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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for PACKAGE in $PACKAGES; do
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is_pkg_installed "$PACKAGE"
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if [ "$FNRET" = 0 ]; then
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crit "$PACKAGE is installed, purging it"
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apt-get purge "$PACKAGE" -y
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apt-get autoremove
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else
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ok "$PACKAGE is absent"
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fi
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does_file_exist "$FILE"
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if [ "$FNRET" != 0 ]; then
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ok "$FILE does not exist"
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else
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info "$FILE exists, checking patterns"
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does_pattern_exist_in_file "$FILE" "$PATTERN"
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if [ "$FNRET" = 0 ]; then
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warn "$PATTERN is present in $FILE, purging it"
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backup_file $FILE
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# shellcheck disable=SC2001
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ESCAPED_PATTERN=$(sed "s/|\|(\|)/\\\&/g" <<<$PATTERN)
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sed -ie "s/$ESCAPED_PATTERN/#&/g" "$FILE"
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else
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ok "$PATTERN is not present in $FILE"
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fi
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fi
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done
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_LIB_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_LIB_DIR variable, aborting."
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exit 128
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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if [ -r "${CIS_LIB_DIR}"/main.sh ]; then
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# shellcheck source=../../lib/main.sh
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. "${CIS_LIB_DIR}"/main.sh
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else
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echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_LIB_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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