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Category:   Application (Directory)  >   IBM Tivoli Directory Server Vendors:   IBM
IBM Tivoli Directory Server NULL Ciphers Let Remote Users Obtain Potentially Sensitive Information
SecurityTracker Alert ID:  1026939
SecurityTracker URL:  http://securitytracker.com/id/1026939
CVE Reference:   CVE-2012-0726   (Links to External Site)
Date:  Apr 18 2012
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.1, 6.2, 6.3
Description:   A vulnerability was reported in IBM Tivoli Directory Server. A remote user monitoring the network can obtain potentially sensitive information.

The default TLS configuration enables NULL-MD5 and NULL-SHA ciphers. If a TLS cipher negotiation fails to use a strong cipher, the connection may default to a NULL cipher. A remote user monitoring the network between the client and the directory server can obtain potentially sensitive information.

Impact:   A remote user monitoring the network can obtain potentially sensitive information.
Solution:   The vendor has issued a fix.

6.1: APAR IO16035: 6.1.0.47-ISS-ITDS-IF0047
6.2: APAR IO16036: 6.2.0.22-ISS-ITDS-IF0022
6.3: APAR IO15761: 6.3.0.11-ISS-ITDS-IF0011

The vendor's advisory is available at:

http://www-01.ibm.com/support/docview.wss?uid=swg21591272

Vendor URL:  www-01.ibm.com/support/docview.wss?uid=swg21591272 (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (2003), Windows (2008)

Message History:   None.


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