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Dag H. Wanvik commented on DERBY-5363: -------------------------------------- Thanks, Rick. You are right about the directories: so far I have only tightened up permissions for the files - I need to do the directories too. I'll have a look at the code comments, thx. > 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 > Reporter: Dag H. Wanvik > Attachments: permission-5.diff, permission-5.stat, 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