DESCRIPTION

audisp-prelude.conf is the file that controls the configuration of the audit based intrusion detection system. There are 2 general kinds of configuration option types, enablers and actions. The enablers simply have yes/no as the only valid choices.

The action options currently allow ignore, and idmef as its choices. The ignore option means that the IDS still detects events, but only logs the detection in response. The idmef option means that the IDS will send an IDMEF alert to the prelude manager upon detection.

The configuration options that are available are as follows:

profile

This is a one word character string that is used to identify the profile name in the prelude reporting tools. The default is auditd.

detect_avc

This an enabler that determines if the IDS should be examining SE Linux AVC events. The default is yes.

avc_action

This is an action that determines what response should be taken whenever a SE Linux AVC is detected. The default is idmef.

detect_login

This is an enabler that determines if the IDS should be examining login events. The default is yes.

login_action

This is an action that determines what response should be taken whenever a login event is detected. The default is idmef.

detect_login_fail_max

This is an enabler that determines if the IDS should be looking for maximum number of failed logins for an account. The default is yes.

login_fail_max_action

This is an action that determines what response should be taken whenever the maximum number of failed logins for an account is detected. The default is idmef.

detect_login_session_max

This is an enabler that determines if the IDS should be looking for maximum concurrent sessions limit for an account. The default is yes.

login_session_max_action

This is an action that determines what response should be taken whenever the maximum concurrent sessions limit for an account is detected. The default is idmef.

detect_login_location

This is an enabler that determines if the IDS should be looking for logins being attempted from a forbidden location. The default is yes.

login_location_action

This is an action that determines what response should be taken whenever logins are attempted from a forbidden location. The default is idmef.

detect_login_time_alerts

This is an enabler that determines if the IDS should be looking for logins attempted during a forbidden time. The default is yes.

login_time_action

This is an action that determines what response should be taken whenever logins are attempted during a forbidden time. The default is idmef.

detect_abend

This is an enabler that determines if the IDS should be looking for programs terminating for an abnormal reason. The default is yes.

abend_action

This is an action that determines what response should be taken whenever programs terminate for an abnormal reason. The default is idmef.

detect_promiscuous

This is an enabler that determines if the IDS should be looking for promiscuous sockets being opened. The default is yes.

promiscuous_action

This is an action that determines what response should be taken whenever promiscuous sockets are detected open. The default is idmef.

detect_mac_status

This is an enabler that determines if the IDS should be detecting changes made to the SE Linux MAC enforcement. The default is yes.

mac_status_action

This is an action that determines what response should be taken whenever changes are made to the SE Linux MAC enforcement. The default is idmef.

detect_group_auth

This is an enabler that determines if the IDS should be detecting whenever a user fails in changing their default group. The default is yes.

group_auth_act

This is an action that determines what response should be taken whenever a user fails in changing their default group. The default is idmef.

detect_watched_acct

This is an enabler that determines if the IDS should be detecting a user attempting to login on an account that is being watched. The accounts to watch is set by the watched_accounts option. The default is yes.

watched_acct_act

This is an action that determines what response should be taken whenever a user attempts to login on an account that is being watched. The default is idmef.

watched_accounts

This option is a whitespace and comma separated list of accounts to watch. The accounts may be numeric or alphanumeric. If you want to include a range of accounts, separate them with a dash but no spaces. For example, to watch logins from bin to lp, use "bin-lp". Only successful logins are recorded.

detect_watched_syscall

This is an enabler that determines if the IDS should be detecting whenever a user runs a command that issues a syscall that is being watched. The default is yes.

watched_syscall_act

This is an action that determines what response should be taken whenever a user runs a command that issues a syscall that is being watched. The default is idmef.

detect_watched_file

This is an enabler that determines if the IDS should be detecting whenever a user accesses a file that is being watched. The default is yes.

watched_file_act

This is an action that determines what response should be taken whenever a user accesses a file that is being watched. The default is idmef.

detect_watched_exec

This is an enabler that determines if the IDS should be detecting whenever a user executes a program that is being watched. The default is yes.

watched_exec_act

This is an action that determines what response should be taken whenever a user executes a program that is being watched. The default is idmef.

detect_watched_mk_exe

This is an enabler that determines if the IDS should be detecting whenever a user creates a file that is executable. The default is yes.

watched_mk_exe_act

This is an action that determines what response should be taken whenever a user creates a file that is executable. The default is idmef.

AUTHOR

Steve Grubb