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70 lines
2.4 KiB
Bash
70 lines
2.4 KiB
Bash
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#!/bin/bash
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#
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# CIS Debian 7 Hardening
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#
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#
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# 8.1.10 Collect Discretionary Access Control Permission Modification Events (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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AUDIT_PARAMS='-a always,exit -F arch=b64 -S chmod -S fchmod -S fchmodat -F auid>=1000 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b32 -S chmod -S fchmod -S fchmodat -F auid>=1000 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b64 -S chown -S fchown -S fchownat -S lchown -F auid>=1000 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b32 -S chown -S fchown -S fchownat -S lchown -F auid>=1000 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b64 -S setxattr -S lsetxattr -S fsetxattr -S removexattr -S lremovexattr -S fremovexattr -F auid>=1000 -F auid!=4294967295 -k perm_mod
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-a always,exit -F arch=b32 -S setxattr -S lsetxattr -S fsetxattr -S removexattr -S lremovexattr -S fremovexattr -F auid>=1000 -F auid!=4294967295 -k perm_mod'
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FILE='/etc/audit/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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IFS=$'\n'
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for AUDIT_VALUE in $AUDIT_PARAMS; do
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debug "$AUDIT_VALUE must be in file $FILE"
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does_pattern_exists_in_file $FILE $AUDIT_VALUE
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if [ $FNRET != 0 ]; then
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crit "$AUDIT_VALUE is not in file $FILE"
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else
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ok "$AUDIT_VALUE present in $FILE"
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fi
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done
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}
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# This function will be called if the script status is on enabled mode
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apply () {
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IFS=$'\n'
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for AUDIT_VALUE in $AUDIT_PARAMS; do
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debug "$AUDIT_VALUE must be in file $FILE"
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does_pattern_exists_in_file $FILE $AUDIT_VALUE
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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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eval $(pkill -HUP -P 1 auditd)
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else
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ok "$AUDIT_VALUE 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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:
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}
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# Source Root Dir Parameter
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if [ ! -r /etc/default/cis-hardenning ]; then
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echo "There is no /etc/default/cis-hardenning file, cannot source CIS_ROOT_DIR variable, aborting"
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exit 128
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else
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. /etc/default/cis-hardenning
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if [ -z $CIS_ROOT_DIR ]; then
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echo "No CIS_ROOT_DIR variable, aborting"
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fi
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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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[ -r $CIS_ROOT_DIR/lib/main.sh ] && . $CIS_ROOT_DIR/lib/main.sh
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