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https://issues.apache.org/jira/browse/JAMES-385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Norman Maurer resolved JAMES-385.
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Resolution: Fixed
Assignee: Norman Maurer
done
> Allow to prevent weak ciphers when using "useTLS"
> -------------------------------------------------
>
> Key: JAMES-385
> URL: https://issues.apache.org/jira/browse/JAMES-385
> Project: JAMES Server
> Issue Type: Bug
> Components: SMTPServer
> Affects Versions: 2.2.0, 2.3.0, 2.3.1, 2.3.2, 3.0-M1, 3.0-M2
> Environment: Linux, jdk 1.4
> Reporter: Ralf Hauser
> Assignee: Norman Maurer
> Priority: Critical
> Fix For: 3.0-M3
>
> Attachments: Cornerstone.patch.zip
>
>
> http://james.apache.org/usingTLS_2_1.html and
> http://wiki.apache.org/james/UsingSSL explain how to setup a pop3s etc.
> describe how to secure a client connection to James.
> openssl s_client -connect pops.mydom.com:995 -cipher EXPORT
> illustrates that this is possible with james.
> One might argue that a decent client will never ask the server to negotiate a
> weak cipher. But an attacker (man-in-the-middle) could remove stronger
> ciphers from the client's offered cipher list, and then break the weak cipher
> and e.g. obtain the user password to later hijack the account.
> Please amend the documentation how prevent this from happening by forcing
> james to only negotiate sessions with 128+ bit session key strength
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