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Category:   Application (Security)  >   Kerberos Vendors:   MIT
(Ubuntu Issues Fix) Kerberos kadmin randkey Function Lets Remote Authenticated Administrators Obtain Old Keys and Potentially Forge Tickets
SecurityTracker Alert ID:  1031737
SecurityTracker URL:  http://securitytracker.com/id/1031737
CVE Reference:   CVE-2014-5351   (Links to External Site)
Date:  Feb 11 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:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-2498-1

Vendor URL:  web.mit.edu/kerberos/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  10.04 LTS, 12.04 LTS, 14.04 LTS, 14.10

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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