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Category:   Application (Security)  >   Kerberos Vendors:   MIT
(IBM Issues Fix for IBM AIX) Kerberos kadmin randkey Function Lets Remote Authenticated Administrators Obtain Old Keys and Potentially Forge Tickets
SecurityTracker Alert ID:  1031574
SecurityTracker URL:  http://securitytracker.com/id/1031574
CVE Reference:   CVE-2014-5351   (Links to External Site)
Date:  Jan 20 2015
Impact:   Modification of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to krb5-1.13
Description:   A vulnerability was reported in Kerberos. A remote authenticated user can forge tickets.

A remote authenticated administrative user can invoke the kadmin randkey RPC operation with the '-keepold' flag to obtain old keys and potentially forge authentication tickets.

Impact:   A remote authenticated user can forge tickets.
Solution:   IBM has issued a fix for IBM AIX.

The IBM advisory is available at:

https://aix.software.ibm.com/aix/efixes/security/nas_advisory2.asc

Vendor URL:  web.mit.edu/kerberos/ (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.3, 6.1, 7.1

Message History:   This archive entry is a follow-up to the message listed below.
Oct 14 2014 Kerberos kadmin randkey Function Lets Remote Authenticated Administrators Obtain Old Keys and Potentially Forge Tickets



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