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Category:   OS (UNIX)  >   HP-UX Vendors:   HPE
(HP Issues Fix for HP-UX Running sendmail) OpenSSL SSL 3.0 Protocol Downgrade Flaw Lets Remote Users Decrypt SSL Traffic
SecurityTracker Alert ID:  1032271
SecurityTracker URL:  http://securitytracker.com/id/1032271
CVE Reference:   CVE-2014-3566   (Links to External Site)
Date:  May 7 2015
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 11.11, 11.23, 11.31
Description:   A vulnerability was reported in OpenSSL. A remote user can decrypt SSL sessions in certain cases. HP-UX running sendmail is affected.

A remote user can with the ability to conduct a man-in-the-middle attack can force a client to negotiate a downgrade to SSLv3 instead of a TLS v1.x protocol and then conduct a BEAST-style of attack to decrypt portions of the session.

This protocol vulnerability is referred to as the POODLE ("Padding Oracle On Downgraded Legacy Encryption") vulnerability.

This is a flaw in the protocol rather than in the OpenSSL implementation.

The original advisory is available at:

https://www.openssl.org/~bodo/ssl-poodle.pdf

Bodo Moller, Thai Duong, and Krzysztof Kotowicz reported this vulnerability.

Impact:   A remote user with the ability to conduct a man-in-the-middle attack can decrypt SSL sessions.
Solution:   HP has issued an advisory for HP-UX running sendmail.

The HP advisory is available at:

https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04506802

Vendor URL:  www.openssl.org/ (Links to External Site)
Cause:   Access control error

Message History:   This archive entry is a follow-up to the message listed below.
Oct 15 2014 OpenSSL SSL 3.0 Protocol Downgrade Flaw Lets Remote Users Decrypt SSL Traffic



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