87 lines
2.6 KiB
Bash
Executable File
87 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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#
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# harbian-audit for Debian GNU/Linux 7/8/9/10 or CentOS Hardening
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#
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#
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# 8.1.34 Collect Use of Privileged Commands (Scored)
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#
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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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HARDENING_LEVEL=4
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FILE='/etc/audit/rules.d/audit.rules'
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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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# define custom IFS and save default one
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d_IFS=$IFS
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c_IFS=$'\n'
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IFS=$c_IFS
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for AUDIT_VALUE in $AUDIT_PARAMS; do
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debug "$AUDIT_VALUE should be in file $FILE"
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IFS=$d_IFS
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RESULT=$(echo $AUDIT_VALUE | awk -F"-F" '{print $2}' | awk -F"=" '{print $2}')
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does_valid_pattern_exist_in_file $FILE "$RESULT"
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IFS=$c_IFS
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if [ $FNRET != 0 ]; then
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crit "$RESULT is not in file $FILE"
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else
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ok "$RESULT is present in $FILE"
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fi
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done
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IFS=$d_IFS
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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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IFS=$'\n'
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for AUDIT_VALUE in $AUDIT_PARAMS; do
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debug "$AUDIT_VALUE should be in file $FILE"
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RESULT=$(echo $AUDIT_VALUE | awk -F"-F" '{print $2}' | awk -F"=" '{print $2}')
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does_valid_pattern_exist_in_file $FILE "$RESULT"
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if [ $FNRET != 0 ]; then
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warn "$AUDIT_VALUE is not in file $FILE, adding it"
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add_end_of_file $FILE $AUDIT_VALUE
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check_auditd_is_immutable_mode
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else
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ok "$AUDIT_VALUE is present in $FILE"
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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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if [ $DONT_AUDITD_BY_UID -eq 1 ]; then
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# Find all files with setuid or setgid set
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AUDIT_PARAMS=$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f | awk '{print \
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"-a always,exit -F path=" $1 " -F perm=x -k privileged" }')
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else
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# Find all files with setuid or setgid set
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AUDIT_PARAMS=$(find / -xdev \( -perm -4000 -o -perm -2000 \) -type f | awk '{print \
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"-a always,exit -F path=" $1 " -F perm=x -F auid>=1000 -F auid!=4294967295 \
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-k privileged" }')
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fi
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_ROOT_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_ROOT_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_ROOT_DIR/lib/main.sh ]; then
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. $CIS_ROOT_DIR/lib/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_ROOT_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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