SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(IBM Issues Fix for IBM AIX) OpenSSL SSL 3.0 Protocol Downgrade Flaw Lets Remote Users Decrypt SSL Traffic
SecurityTracker Alert ID:  1032604
SecurityTracker URL:  http://securitytracker.com/id/1032604
CVE Reference:   CVE-2014-3566   (Links to External Site)
Date:  Jun 18 2015
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in OpenSSL. A remote user can decrypt SSL sessions in certain cases.

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:   IBM has issued a fix for IBM AIX.

IBM has issued the following APARs.

For ftp:

6.1.8 IV69768
6.1.9 IV73324
7.1.2 IV73319
7.1.3 IV73316

For sendmail:

6.1.8 IV73416
6.1.9 IV73417
7.1.2 IV73418
7.1.3 IV73419

For imapd and popd:

6.1.8 IV73973
6.1.9 IV73976
7.1.2 IV73974
7.1.3 IV73975

The IBM advisory is available at:

https://aix.software.ibm.com/aix/efixes/security/nettcp_advisory.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/nettcp_advisory.asc (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  6.1, 7.1

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



 Source Message Contents



[Original Message Not Available for Viewing]


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2020, SecurityGlobal.net LLC