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List: oss-security
Subject: [oss-security] Re: CVE Request: Smack: TLS SecurityMode.required not always enforced, leading to str
From: <cve-assign () mitre ! org>
Date: 2016-12-22 16:03:01
Message-ID: 3ffc286c0922469cb1c17303abd6674d () imshyb02 ! MITRE ! ORG
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> I reported a vulnerability in the Smack XMPP library where the security of
> the TLS connection is not always enforced. By stripping the "starttls"
> feature from the server response with a man-in-the-middle tool, an attacker
> can force the client to authenticate in clear text even if the
> "SecurityMode.required" TLS setting has been set. This is a race condition
> issue so the attack will work after a few tries.
> https://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22
> https://issues.igniterealtime.org/browse/SMACK-739
> https://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04
> https://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820b
>> smack-core/src/main/java/org/jivesoftware/smack/AbstractXMPPConnection.java
>> smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java
Use CVE-2016-10027.
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
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