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From "Guillaume Nodet (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SSHD-400) Ignore SFTP extension data in SSH_FXP_INIT message
Date Tue, 10 Feb 2015 12:26:11 GMT

     [ https://issues.apache.org/jira/browse/SSHD-400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Guillaume Nodet resolved SSHD-400.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 0.14.0
         Assignee: Guillaume Nodet

https://git-wip-us.apache.org/repos/asf?p=mina-sshd.git;a=commitdiff;h=46216f91e7613d9590abd913dd966521ea4a9266

> Ignore SFTP extension data in SSH_FXP_INIT message
> --------------------------------------------------
>
>                 Key: SSHD-400
>                 URL: https://issues.apache.org/jira/browse/SSHD-400
>             Project: MINA SSHD
>          Issue Type: Improvement
>            Reporter: Goldstein Lyor
>            Assignee: Guillaume Nodet
>            Priority: Minor
>             Fix For: 0.14.0
>
>         Attachments: 0012-SSHD-400-Ignore-SFTP-extension-data-in-SSH_FXP_INIT-.patch
>
>
> According to the [specification](see https://filezilla-project.org/specs/draft-ietf-secsh-filexfer-02.txt)
- section 4 - Protocol Initialization - the _SSH_FXP_INIT_ message may contain optional extension
strings and "Implementations MUST silently ignore any extensions whose name they do not recognize.".
> While such extensions may be rare, IMO we don't want the SSHD server to fail talking
to such clients. Attached is a patch in that spirit (BTW, there was also a logging error -
the message was logging the received version *before* the value was initialized...)



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