[HADOOP-14146] KerberosAuthenticationHandler should authenticate with SPN in AP-REQ

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Component/s: security
• Target Version/s: 2.8.1
• Hadoop Flags: Reviewed
• Assignee: Daryn Sharp
• Reporter: Daryn Sharp
• Created: 03/Mar/17 22:17
• Updated: 23/Jun/17 18:31
• Resolved: 23/Jun/17 18:31

Description

Many attempts (HADOOP-10158, HADOOP-11628, HADOOP-13565) have tried to add multiple SPN host and/or realm support to spnego authentication. The basic problem is the server tries to guess and/or brute force what SPN the client used. The server should just decode the SPN from the AP-REQ.