Fix (APAR):  PI80317

Status:  Fix

Release:  9.0.0.4,9.0.0.3,9.0.0.2,9.0.0.1,9.0.0.0

Operating System:  AIX,HP-UX,IBM i,Inspur K-UX,Linux,Solaris,Windows,z/OS

Supersedes Fixes:  

CMVC Defect:  xxxxxx

Byte size of APAR:  3115545

Date: 2017-09-01

Abstract:  OpenID Connect (OIDC) Relying Party(RP) may store incorrect     data in DynaCache

Description/symptom of problem:  
PI80317 resolves the following problem:

ERROR DESCRIPTION:                                              
When the OIDC RP is configured to use DynaCache, it is possible 
for incorrect data to be stored and replicated.                 

LOCAL FIX:                                                      
N/A                                                             

PROBLEM SUMMARY

USERS AFFECTED:
 IBM WebSphere Application Server users of
OpenID Connect

PROBLEM DESCRIPTION:
The OpenID Connect TAI can cache
incorrect data in DynaCache.

RECOMMENDATION:
 Install a fix pack that includes this
APAR.

The OpenID Connect Relying Party Trust Association Interceptor
can cause its session data in DynaCache to become inconsistent.

PROBLEM CONCLUSION:                                             
The OpenID Connect Relying Party TAI creates a session          
cache entry using a default timeout before requesting tokens    
from the OP.  After receiving the tokens from the OP, it will   
update the cache entry with the new timeouts, add the tokens    
and add an alias.  If the DynaCache replicates between when     
the session cache entry is created and the entry is updated,    
unexpected behavior can occur.                                  
                                                                
The OIDC TAI is updated to not create the session cache entry   
until after the tokens are received from the OP.                
                                                                
The fix for this APAR is currently targeted for inclusion in    
fix pack 8.0.0.14, 8.5.5.12, and 9.0.0.5.  Please refer to the  
Recommended Updates page for delivery information:              
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980   
                                                                
Note: If fix cannot be installed, uncheck "show recommended     
fixes only" in Installation Manager to show prerequisite fixes  
needed by some older versions.                                  


Directions to apply fix:  
Install Fix to all WebSphere installations unless special instructions are included below.

Special Instructions: None

NOTE:
The user must:
* Logged in with the same authority level when unpacking a fix, fix pack or refresh pack.
* Be at V1.8.5 or newer of the Installation Manager. Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to apply the iFixes.
http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html.  Shutdown WebSphere Application Server before applying the iFixes.  Restart WebSphere Application Server after applying the iFixes.

Directions to remove fix:  

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to remove the iFixes.
http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html.  Shutdown WebSphere Application Server before removing the iFixes.  Restart WebSphere Application Server after removing the iFixes.

Directions to re-apply fix:  
1) Shutdown WebSphere Application Server.

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere Application Server.



Additional Information: