Audit Log Rule Sets

Audit log rule sets are available to manage the level of detail in audit logs. Types of logs can be added to or removed from rule sets by means of log audit ruleset command line parameters.

The following table shows rule sets and their default state:

Rule Sets

Option	Name	Enabled
1	Default Rules	true
2	CLI Commands	true
3	Users and Groups	false
4	Network Events	false
5	Security	false
6	Software Management	false
7	Root Commands	false
8	File Access	false

For details on the logs associated with the rules, see:

• Types of command and change logs in audit rules
• the audit log description under Log Types

This means that by default, the audit log only shows logs associated with the default audit rules (1) and any VOSS-4-UC platform CLI commands (2).

The following parameters are available for the command log audit ruleset:

• log audit ruleset list

  Show the current ruleset, in other words the enabled and disabled rules.

  For example, consider the following (non-default option 7 has been enabled):

  $ log audit ruleset list
  
  
                Option    Name
                ------    ----
  
   Rules Enabled
                     1    Default Rules
                     2    CLI Commands
                     7    Root Commands
  
  Rules Disabled
  
                     3    Users and Groups
                     4    Network Events
                     5    Security
                     6    Software Management
                     8    File Access
  

• log audit ruleset disable 1,2

  Disable rules 1 and 2 from the rule set.

  Note

  The parameter syntax is a comma separated list of option numbers without spaces.

  For example:

  $ log audit ruleset disable 1,2
  
  $ log audit ruleset list
  
  
                Option    Name
                ------    ----
  
   Rules Enabled
                     7    Root Commands
  
  Rules Disabled
  
                     1    Default Rules
                     2    CLI Commands
                     3    Users and Groups
                     4    Network Events
                     5    Security
                     6    Software Management
                     8    File Access
  

• log audit ruleset enable 2

  Enable rule 2 from the rule set.

  For example:

  $ log audit ruleset enable 2
  
  $ log audit ruleset list
  
  
                Option    Name
                ------    ----
  
   Rules Enabled
  
                     2    CLI Commands
                     7    Root Commands
  
  Rules Disabled
  
                     1    Default Rules
                     3    Users and Groups
                     4    Network Events
                     5    Security
                     6    Software Management
                     8    File Access
  

• log audit ruleset enable all

  Enable all the rules.

  For example:

  $ log audit ruleset enable all
  
  $ log audit ruleset list
  
  
                Option    Name
                ------    ----
  
   Rules Enabled
  
                     1    Default Rules
                     2    CLI Commands
                     3    Users and Groups
                     4    Network Events
                     5    Security
                     6    Software Management
                     8    File Access
                     7    Root Commands
  
  Rules Disabled
  

• log audit ruleset default

  Reset the rules to the default set.

  For example:

  $ log audit ruleset default
  
  $ log audit ruleset list
  
  
                Option    Name
                ------    ----
  
   Rules Enabled
  
                     1    Default Rules
                     2    CLI Commands
  
  Rules Disabled
  
                     3    Users and Groups
                     4    Network Events
                     5    Security
                     6    Software Management
                     8    File Access
                     7    Root Commands
  

Types of command and change logs in audit rules

Option #	Name	Purpose
1	Default Rules	Audit mgt tool, kernel , mount, swap, stunnel, cron events
2	CLI Commands	All Voss CLI commands logged in a clear text format
3	Users and Groups	User, group, sudo, password, login/logout events
4	Network Events	Hostname, pam, ssh, systemd, access failures, power state, session initiation, access control, etc
5	Security	Suspicious activity, reconnaissance, code injection, and privilege abuse
6	Software Management	Package management (dpkg, apt, aptitude)
7	Root Commands	Commands executed as root (high volume)
8	File Access	File access failures and deletion