Fix (APAR):  PI74857

Status:  Fix

Release:  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:  3086370

Date: 2017-03-10

Abstract:  Confidential for Security Integrity ifix

Description/symptom of problem:  
PI74857 resolves the following problem:

ERROR DESCRIPTION:
There is a potential privilege escalation vulnerability in traditional WebSphere Application Server when using the OpenID Connect Trust Association Interceptor.

LOCAL FIX:                                                      
Do not include the OpenID connect TAI class name, com.ibm.ws.security.oidc.client.RelyingParty, in the list of classes in the value for the com.ibm.websphere.security.InvokeTAIbeforeSSO base security custom property.

PROBLEM SUMMARY:
There is a potential privilege escalation vulnerability in traditional WebSphere Application Server when using the OpenID Connect Trust Association Interceptor.

PROBLEM CONCLUSION:
The vulnerability is remediated.

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 Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.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: