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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2109) System privileges
Date Thu, 11 Jan 2007 15:54:27 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12463921

Daniel John Debrunner commented on DERBY-2109:

Rick wrote:

> Maybe we could require that the database location be unambiguously qualified by one of
the subsubprotocols which we recognize on URLs:
>    classpath:
>    directory:
>    jar:
> So, for instance, in this first rev:
>     permission org.apache.derby.security.DatabasePermission "directory:${derby.system.home}${/}accountingDBA"

That's possible though it would be good to see if the disambiguating rules that are used for
database name could also be used for database location, though as a first step requiring "directory:"
would be ok and forward compatible.

If the format of database location is to follow database name (with extensions) then it's
important to note that the separator for database names is always forward slash since they
are part of a URL syntax (JDBC URL). Though your example has a variable with a file system
name in it, (and others such as user.dir and user.home would be useful) which can contain
a different separator, it does seem this is a useful feature. So the spec should account for

We should also support relative names, as in database name, thus your example could be re-written

permission org.apache.derby.security.DatabasePermission "directory:accountingDBA/*" "create";

The extensions to the database format are the use of '/-', the functional spec describes it
but the description is inconsistent compared to existing use in the policy file. I believe
that the correct usage should be:

 directory:name     - defines that specific single database identified by name
 directory:name/*   - defines permission on any database in the folder described by name
 directory:name/-   - defines permission on any database in the folder or sub-folder of the
folder described by name

I think this is more flexible, e.g. the future ability to grant shutdown database to a single
database, and matches FilePermission which you are intending to use to imlement it.

So a quick summary would be I believe consistency with existing practices is very important,
I think it will reduce the number of errors in setting up policy files by users, which are
tricky things.

> System privileges
> -----------------
>                 Key: DERBY-2109
>                 URL: https://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, 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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