[AMBARI-21146] Knox JAAS configuration file should not allow the Kerberos ticket cache to be used when establishing its identity on startup

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 2.5.2
• Assignee: Attila Magyar
• Reporter: Attila Magyar
• Created: 30/May/17 13:49
• Updated: 08/Jun/17 10:27
• Resolved: 08/Jun/17 09:34

Description

The JAAS configuration for Knox allows the interactive user's ticket cache to be used to establish the service's identity when starting up. This is problematic and potentially confusing. To prevent this, the JAAS config should be set as follows:

com.sun.security.jgss.initiate {
  com.sun.security.auth.module.Krb5LoginModule required
  renewTGT=false
  doNotPrompt=true
  useKeyTab=true
  keyTab="/etc/security/keytabs/knox.service.keytab"
  principal="knox/[e-mail]"
  storeKey=true
  useTicketCache=false;
};

Note: the keytab file and principal name values need to be set based on the relevant Kerberos configuration.

Issue Links

• links to: review board