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From "Roy Lu (Jira)" <j...@apache.org>
Subject [jira] [Commented] (FTPSERVER-491) SSLConfigurationFactory.setSslProtocol never actually work
Date Thu, 06 Feb 2020 02:20:00 GMT

    [ https://issues.apache.org/jira/browse/FTPSERVER-491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17031203#comment-17031203
] 

Roy Lu commented on FTPSERVER-491:
----------------------------------

[~johnnyv] No I didn't set NULL for it. I just didn't call setSslProtocol function. Well this
is not a big problem. If you mean to make it behave like this I'm ok. As long as the security
issue could be fixed. Hope this fix could be released as soon as possible. 

> SSLConfigurationFactory.setSslProtocol never actually work
> ----------------------------------------------------------
>
>                 Key: FTPSERVER-491
>                 URL: https://issues.apache.org/jira/browse/FTPSERVER-491
>             Project: FtpServer
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.1
>            Reporter: Roy Lu
>            Assignee: Jonathan Valliere
>            Priority: Critical
>              Labels: easyfix
>             Fix For: 1.1.2
>
>
> It says in the document: Set the SSL protocol used for this channel. Supported values
are "SSL" and "TLS". Defaults to "TLS".
> Actually the available value could be TLSv1, TLSv1.1, TLSv1.2, SSLv3. This is mentioned
[https://mina.apache.org/mina-project/userguide/ch11-ssl-filter/ch11-ssl-filter.html] at
the bottom.
> But the things is, the +setSslProtocol+ method here actually doesn't work. Because the
ssl protocol set in the +SSLConfiguration+ is never used. Check +NioListener+ you will see
this:
> Configuration of cipher suites was set into +sslFilter+ but no protocol. It seems protocols
are missing.
> |if (ssl.getEnabledCipherSuites() != null) {
>     sslFilter.setEnabledCipherSuites(ssl.getEnabledCipherSuites());
> }
>  
> |
> This leads to a problem:
> In +SSLHandler+ protocols will be set into +sslEngine+. Because protocol was lost when
building sslFilter, so the protocols setting never work.
>  
> |if (this.sslFilter.getEnabledCipherSuites() != null) {
>     this.sslEngine.setEnabledCipherSuites(this.sslFilter.getEnabledCipherSuites());
> }
>  
> if (this.sslFilter.getEnabledProtocols() != null) {
>    this.sslEngine.setEnabledProtocols(this.sslFilter.getEnabledProtocols());
> }|
>  
> I found this because I scanned FTP with Nmap. I set it to critical because it's a security
issue and hope it can be fixed soon.
>  
>  



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