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From "Alex Dupre (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCLIENT-1051) SSL connections cannot be established using resolvable IP address
Date Mon, 07 Mar 2011 18:16:59 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13003488#comment-13003488

Alex Dupre commented on HTTPCLIENT-1051:

Hmm, my comment was not meant to revert the patch. The first scenario was already exploitable
and still is. Your patch is the "correct" solution without breaking the API.

But to avoid any security issue (including the ones already present) the API have to be changed.

> SSL connections cannot be established using resolvable IP address
> -----------------------------------------------------------------
>                 Key: HTTPCLIENT-1051
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1051
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpConn
>    Affects Versions: 4.1 Final
>            Reporter: Alex Dupre
>            Priority: Minor
> HttpClient 4.1 introduced a regression in establishing SSL connections to remote peers
(it seems this is a common regression for major httpclient updates, see HTTPCLIENT-803).
> The new SSLSocketFactory.connectSocket method calls the X509HostnameVerifier with InetSocketAddress.getHostName()
parameter. When the selected IP address has a reverse lookup name, the verifier is called
with the resolved name, and so the IP check fails.
> 4.0 release checked for original ip/hostname, but this cannot be done with the new connectSocket()
> The TestHostnameVerifier.java only checks and so masked the issue, because
the matching certificate has both "localhost" and "", but actually only "localhost"
is matched. A test case with would be better.

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