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Oracle Security Auditing Discussion

October 8, 2004

This source has just published a good short overview of Oracle auditing and security:
 The most important section IMHO is the review of the important profile parameters for Oracle users:
The important parameters that can be defined within a profile are:
  • FAILED_LOGIN_ATTEMPTS -- Limits the number of failed login attempts that are allowed before the account is locked out.
  • PASSWORD_LOCK_TIME -- Sets the number of days that a user account will be locked out if the number of unsuccessful login attempts exceeds the FAILED_LOGIN_ATTEMPTS value. This parameter can be set to a decimal value such as 0.04 to represent one hour.
  • PASSWORD_LIFE_TIME -- Determines the maximum period during which a password is valid. The user must change the password within the specified number of days.
  • PASSWORD_GRACE_TIME -- Specifies the amount of time during which users can access the database after their password has expired and begins upon their first attempt to log in to a database account after expiration. During the grace period, a warning message appears each time users try to log in to their accounts and continues to appear until the grace period ends.
  • PASSWORD_REUSE_TIME -- Specifies the number of days before a password can be reused.
  • PASSWORD_REUSE_MAX -- Determines the number of password changes a user must make before reusing his or her current password.
  • PASSWORD_VERIFY_FUNCTION -- Specifies a PL/SQL function (PL/SQL is Oracle’s variant of the SQL language) to be used for password verification when users who are assigned this profile log into a database. This function can be used to validate password strength by requiring passwords to pass a strength test written in PL/SQL.
While this is a good high-level overview, I still recommend Arup Nanda's book "Oracle Privacy Security Auditing" for complete coverage of this important topic:



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