IBM Guardium

IBM Guardium

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  • 1.  Invalid logon attempts Policy access rule

    Posted Wed May 29, 2019 01:05 PM
    Hello,
    I have a question related to policy rules and failed logins.
    One of our policy rules is to alert when 3 invalid login attempts have been made witihin a five minute time period. This is configured by specifying Excpt. Type LOGIN_FAILED.

    I have noticed we are seeing a lot of these alerts produced for databases that have a high availability standby. In the case when a connection is attempted to the standby database, which is not in a state that can be connected to we see these messages. Does anyone know how we could configure the policy rule of only alert when the connect attempt has failed due to an invalid userid or password, rather than a database environment related issue ? Many thanks.


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    David H
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  • 2.  RE: Invalid logon attempts Policy access rule

    Posted Wed May 29, 2019 02:26 PM

    Consider looking at the 'Database Error Text' . 'Error Code' attribute to see what value are seen when connecting to a standby database versus what is seen connecting with invalid user id or password.  Then add to the invalid login attempt rule the error code or group of error codes that indicate (or contra-indicate using NOT) invalid user id or password conditions.

     

    Thanks!

     

    Frank J Bates Jr

    Database Risk Administration

    Key Technology & Operations

    Mailstop: OH-01-51-5970

    4910 Tiedeman Road, Brooklyn, OH 44144-2338

    Phone: (216) 471-2740

    Frank_J_BatesJr@KeyBank.com

     

    KeyBank

     

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  • 3.  RE: Invalid logon attempts Policy access rule

    Posted Thu May 30, 2019 11:05 AM
    It seems that the Database Error Text.Error Code isn't collected in this scenario of failed connects to a standby DB (they are showing as N/A - at least for one Oracle instance anyway) so I'll look into identifying the Error Codes I do want to alert upon for each DBMS and add a policy rule with a group of these values. Many thanks.

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    David Huckle
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  • 4.  RE: Invalid logon attempts Policy access rule

    Posted Fri June 21, 2019 10:35 AM
    Hi,
    There is two types of LOGIN_FAILED action for Oracle

    ORA-28000: the account is locked --> Most of oracle database profile, if you try to login with wrong password, account will be locked after few tries.
    ORA-01017 Invalid Username/Password --> This message shown if you enter wrong username or password.

    You can create a group include those two error codes and recheck issue

    Regards



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    Seyhan Tekelioglu
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