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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2109) System privileges
Date Thu, 14 Dec 2006 01:17:25 GMT
    [ http://issues.apache.org/jira/browse/DERBY-2109?page=comments#action_12458333 ] 
Daniel John Debrunner commented on DERBY-2109:

" We could always reload the policy file just before checking for a system privilege and then
advise the user to grant derby.jar the above permission. "

Not sure that's a good idea, seems like the refresh policy should be an explict operation,
not called on every security operation just because it might have changed. Such an approach
could allow some form of denial of service attack because a failed attempt to do something
still would call refresh, thus repeated calls to the disallowed operation would still have
a potential effect on the VM. Possibly stalling it as the policy file is reparsed.

> System privileges
> -----------------
>                 Key: DERBY-2109
>                 URL: http://issues.apache.org/jira/browse/DERBY-2109
>             Project: Derby
>          Issue Type: New Feature
>          Components: Security
>    Affects Versions:
>            Reporter: Rick Hillegas
>             Fix For:
>         Attachments: systemPrivs.html
> Add mechanisms for controlling system-level privileges in Derby. See the related email
discussion at http://article.gmane.org/gmane.comp.apache.db.derby.devel/33151.
> The 10.2 GRANT/REVOKE work was a big step forward in making Derby more  secure in a client/server
configuration. I'd like to plug more client/server security holes in 10.3. In particular,
I'd like to focus on  authorization issues which the ANSI spec doesn't address.
> Here are the important issues which came out of the email discussion.
> Missing privileges that are above the level of a single database:
> - Create Database
> - Shutdown all databases
> - Shutdown System
> Missing privileges specific to a particular database:
> - Shutdown that Database
> - Encrypt that database
> - Upgrade database
> - Create (in that Database) Java Plugins (currently  Functions/Procedures, but someday
Aggregates and VTIs)
> Note that 10.2 gave us GRANT/REVOKE control over the following  database-specific issues,
via granting execute privilege to system  procedures:
> Jar Handling
> Backup Routines
> Admin Routines
> Import/Export
> Property Handling
> Check Table
> In addition, since 10.0, the privilege of connecting to a database has been controlled
by two properties (derby.database.fullAccessUsers and derby.database.defaultConnectionMode)
as described in the security section of the Developer's Guide (see http://db.apache.org/derby/docs/10.2/devguide/cdevcsecure865818.html).

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