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Posted to issues@commons.apache.org by "Adam Lynam (JIRA)" <ji...@apache.org> on 2016/12/12 13:28:58 UTC
[jira] [Comment Edited] (NET-605) FTPSClient forces IP in
SubjectAlternativeNames field for server certificate validation instead of
hostname
[ https://issues.apache.org/jira/browse/NET-605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15741883#comment-15741883 ]
Adam Lynam edited comment on NET-605 at 12/12/16 1:28 PM:
----------------------------------------------------------
The answer to this is probably setting the original hostname, instead of the IP (held in the host variable), when creating the SSLSocket inside FTPSClient on line 268:
SSLSocket socket =
(SSLSocket) ssf.createSocket(_socket_, host, port, false);
I am not sure what other impact this might have though.
was (Author: adam.lynam.dwp):
The answer to this is probably setting the original hostname, instead of the IP (held in the host variable), when creating the SSLSocket:
SSLSocket socket =
(SSLSocket) ssf.createSocket(_socket_, host, port, false);
I am not sure what other impact this might have though.
> FTPSClient forces IP in SubjectAlternativeNames field for server certificate validation instead of hostname
> -----------------------------------------------------------------------------------------------------------
>
> Key: NET-605
> URL: https://issues.apache.org/jira/browse/NET-605
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 3.5
> Reporter: Adam Lynam
>
> We have an FTP Server with a signed certificate, with both CN and SAN DNS entries set to the respective hostname of the machine.
> When attempting to connect using FTPSClient, we get java.security.cert.CertificateException: No subject alternative names matching IP address x.x.x.x found. The FTPSClient appears to resolve the IP address and pass that through the SSLSocket where it eventually raises the exception.
> While we initially encountered the error against our internal FTP server, we have confirmed the same issue against a public FTP server. ftps://demo:password@test.rebex.net.
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