[jira] [Work started] (SSHD-775) SftpSubSystem::sendStatus leaks Exception information

["Goldstein Lyor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SSHD-775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on SSHD-775 started by Goldstein Lyor.
-------------------------------------------
> SftpSubSystem::sendStatus leaks Exception information
> -----------------------------------------------------
>
>                 Key: SSHD-775
>                 URL: https://issues.apache.org/jira/browse/SSHD-775
>             Project: MINA SSHD
>          Issue Type: Improvement
>    Affects Versions: 1.6.0
>            Reporter: Mark Ebbers
>            Assignee: Goldstein Lyor
>            Priority: Minor
>              Labels: security
>
> I'm using SSHD-core 1.6.0 in my own Sftp server implementation and make use of the rooted file-system. Now did I notice that a client did try to rename a file, which was no longer available, and got a response with the substatus SSH_FX_NO_SUCH_FILE and the message ' Internal NoSuchFileException: /srv/sftp/chroot/11738/file.txt'.
> As a client I now know the following two things:
> * The full path on the file-system.
> * The server was written in Java. (NoSuchFileException)
> I noticed that the SftpSubsystem.sendStatus(Buffer, int, Throwable) uses the SftpHelper.resolveStatusMessage() method to create a message string to be send to the client without further checking what information is inside the Exception message. 



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