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Category:   Application (Generic)  >   VMware ESXi Vendors:   VMware
(VMware Issues Fix for VMware ESXi) OpenSSL SSL 3.0 Protocol Downgrade Flaw Lets Remote Users Decrypt SSL Traffic
SecurityTracker Alert ID:  1031808
SecurityTracker URL:  http://securitytracker.com/id/1031808
CVE Reference:   CVE-2014-3566   (Links to External Site)
Updated:  Mar 26 2015
Original Entry Date:  Feb 27 2015
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): ESXi 5.0, 5.1, 5.5
Description:   A vulnerability was reported in OpenSSL. A remote user can decrypt SSL sessions in certain cases. VMware ESXi 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:   VMware has issued a fix for VMware ESXi.

ESXi 5.5: ESXi550-201501101-SG
ESXi 5.1: ESXi510-201503101-SG
ESXi 5.0: ESXi500-201502101-SG

The VMware advisory is available at:

http://www.vmware.com/security/advisories/VMSA-2015-0001.html

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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