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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2437) SYSCS_EXPORT_TABLE can be used to overwrite derby files
Date Mon, 09 Jul 2007 18:44:04 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12511221
] 

Rick Hillegas commented on DERBY-2437:
--------------------------------------

I am trying to wrap my  mind around how much incremental exposure is introduced by the ability
to import/export LOBs. In a properly secured system, this power would be limited to the database
owner. Currently, the database owner enjoys godlike powers, including the ability to read
and change everyone's passwords. If I were a DBA bent on increasing my salary, I don't think
I would use import/export to do this. The following seems like a much more straightforward
approach:

1) Read the password of the schema which owns the salary table.

2) Log in as that user.

3) Change my salary.

4) Log out.


> SYSCS_EXPORT_TABLE can be used to overwrite derby files
> -------------------------------------------------------
>
>                 Key: DERBY-2437
>                 URL: https://issues.apache.org/jira/browse/DERBY-2437
>             Project: Derby
>          Issue Type: Bug
>          Components: Security
>    Affects Versions: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6, 10.2.2.0,
10.3.0.0, 10.3.1.0, 10.3.1.1, 10.4.0.0
>            Reporter: Daniel John Debrunner
>            Priority: Critical
>
> here are no controls over which files SYSCS_EXPORT_TABLE can write, thus allowing any
user that has permission to execute the procedure to try and modufy information that they
have no permissions to do.
> In a similar fashion to the one described in DERBY-2436 I could overwrite derby.properties
at least leaqding to a dnial of service attack on the next re-boot.
> With more time it might be possible to write out a valid properties file which would
allow chaning the authentication, silentaly adding a new user etc.

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