[
https://issues.apache.org/jira/browse/DERBY-5363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113692#comment-13113692
]
Dag H. Wanvik commented on DERBY-5363:
--------------------------------------
Kathey, the present releasenotes.html summarizes the behavior, I think. Since
this is a system level property, we make no difference between existing and new
databases. If one starts the (new) CLI server, it will treat existing and new
databases the same, as well as system level files (e.g. server trace files):
all files and directories created will be restricted to the owner. The
permissions of existing files are not touched.
> Tighten default permissions of DB files with >= JDK6
> ----------------------------------------------------
>
> Key: DERBY-5363
> URL: https://issues.apache.org/jira/browse/DERBY-5363
> Project: Derby
> Issue Type: Improvement
> Components: Miscellaneous, Services, Store
> Reporter: Dag H. Wanvik
> Assignee: Dag H. Wanvik
> Attachments: derby-5363-basic-1.diff, derby-5363-basic-1.stat,
> derby-5363-basic-2.diff, derby-5363-basic-2.stat, derby-5363-basic-3.diff,
> derby-5363-basic-3.stat, derby-5363-full-1.diff, derby-5363-full-1.stat,
> derby-5363-full-2.diff, derby-5363-full-2.stat, derby-5363-full-3.diff,
> derby-5363-full-3.stat, derby-5363-full-4.diff, derby-5363-full-4.stat,
> derby-5363-server-1.diff, permission-5.diff, permission-5.stat,
> permission-6.diff, permission-6.stat, property-table.png, releaseNote.html,
> releaseNote.html, releaseNote.html, releaseNote.html, z.sql
>
>
> Before Java 6, files created by Derby would have the default
> permissions of the operating system context. Under Unix, this would
> depend on the effective umask of the process that started the Java VM.
> In Java 6 and 7, there are methods available that allows tightening up this
> (File.setReadable, setWritable), making it less likely that somebody
> would accidentally run Derby with a too lenient default.
> I suggest we take advantage of this, and let Derby by default (in Java
> 6 and higher) limit the visibility to the OS user that starts the VM,
> e.g. on Unix this would be equivalent to running with umask 0077. More
> secure by default is good, I think.
> We could have a flag, e.g. "derby.storage.useDefaultFilePermissions"
> that when set to true, would give the old behavior.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
