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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6648) Application code should not be able to call ContextService.getContextOrNull()
Date Tue, 26 Aug 2014 19:55:59 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14111217#comment-14111217
] 

Rick Hillegas commented on DERBY-6648:
--------------------------------------

Moving the doPrivileged() blocks further up the stack may be the way forward. Everyone who
calls a static ContextService method would have to do so inside a doPrivileged() block. We
would treat ContextService calls the way we treat calls to java.io.File methods. It's a sizable
rototill, but not impossible.

> Application code should not be able to call ContextService.getContextOrNull()
> -----------------------------------------------------------------------------
>
>                 Key: DERBY-6648
>                 URL: https://issues.apache.org/jira/browse/DERBY-6648
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>    Affects Versions: 10.11.1.1
>            Reporter: Rick Hillegas
>         Attachments: derby-6648-01-aa-oneActionList.diff
>
>
> By calling ContextService.getContextOrNull() (and its relatives), application code can
get its hands on all sorts of internal Derby contexts, factories, and managers. This allows
application code to bypass SQL authorization checks and perform sensitive or data-corrupting
actions.
> For instance, right now an application can use this method to get its hands on the language
connection context. From the lcc, the application can get its hands on the data dictionary
and the execution transaction. Armed with those objects, the application can bypass authorization
checks and create schema objects, users, and permissions.
> Only Derby code should be able to call this powerful method.



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