Fix (APAR):  PK19195

Status:  Fix

Release:  5.1.1.8,5.1.1.7,5.1.1.6,5.1.1.5,5.1.1.4,5.0.2.9,5.0.2.8,5.0.2.7,5.0.2.6,5.0.2.5,5.0.2.4,5.0.2.3,5.0.2.2,5.0.2.14,5.0.2.13,5.0.2.12,5.0.2.11,5.0.2.10,5.0.2.1,5.0.2

Operating System:  Solaris

Supersedes Fixes:  

CMVC Defect:  PK19195

Byte size of APAR:  17290

Date: 2006-02-07

Abstract:  A manipulated LTPA token from subjects credential will aloow to gain access to an EJB after login in Solaris.

Description/symptom of problem:  
PK19195 resolves the following problem:

ERROR DESCRIPTION:                                              
If an application gets the LTPA token from subjects             
credential, then manipulates the token and attempts to log in   
with that token, on Solaris platform that token can be used     
to gain access to an EJB.                                       

LOCAL FIX:                                                      

PROBLEM SUMMARY

USERS AFFECTED:
All WebSphere Application Server users who
have enabled security and are using LTPA
authentication method.

PROBLEM DESCRIPTION:
A manipulated LTPA token from subjects
credential will aloow to gain access
to an EJB after login in Solaris.

RECOMMENDATION:
None

An application that logs in, gets the token from subjects
credential, then manipulates the token and attempts to log in
with that token. On the Solaris platform the token can be used
to gain access to an EJB.

PROBLEM CONCLUSION:                                             
The corrupted token signature was found to be invalid, a flag   
for isVAlid was false, but token constructor worked anyway.     
The code is fixed to throw an exception if isValid is false.    
                                                                
The fix for this APAR is currently targeted for inclusion in    
fixpack 5.0.2.17 and 5.1.1.10. Please refer to the Recommended  
 Updates page for delivery dates:                               
http://www-1.ibm.com/support/docview.wss?rs=180&context=SSEQTP& 
                                                                
uid=swg27004980                                                 


Directions to apply fix:  
NOTE: Choose the:
1) Release the fix applies to
2) The Editions that apply
3) Delete the Editions & Methods that do not apply and this Note

Fix applies to Editions:
Release:
5.0  5.1
___  ___ Application Server (Express or BASE)
___      Enterprise Edition (DD)
___  ___ Network Deployment (ND)
___  ___ Edge Components
___  ___ Developers Edition
___  ___ Tools
     ___ WebSphere Business Integration Server Foundation (WBISF)

Install Fix to:
Method:
__ Application Server Nodes
__ Deployment Manager Nodes
__ Both

NOTE:
The user must:
* Have Administrative rights in Windows, or be the Actual Root User in a UNIX environments.
* Be logged in with the same authority level when unpacking a fix, fix pack or refresh pack.

The Update Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

The Update Installer for V5.0 does not have a maintenance directory.
It uses fixpacks and fixes as the location of the unpacked files.

1) Copy PKxxxxx.jar file directly to the maintenance directory

2) Shutdown WebSphere
Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that maintenance is being applied to.

3) Launch Update Installer

4) Enter the installation location of the WebSphere product you want to update.

5) Select the "Install maintenance package" operation.

6) Enter the file name of the maintenance package to install (PKxxxxx.jar file which was copied in the maintenance directory).
The V5.0 and V5.1 fix packs and fixes are unpacked as .jar files and should be unpacked into fixpacks or fixes directory.

7) Install the maintenance package.

8) Restart WebSphere

Directions to remove fix:  
NOTE:
* The user must have Administrative rights in Windows, or be the Actual Root User in a UNIX environments.
* FIXES MUST BE REMOVED IN THE ORDER THEY WERE APPLIED
* DO NOT REMOVE A FIX UNLESS ALL FIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED
* YOU MAY REAPPLY ANY REMOVED FIX

Example: If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be removed, fix3 must be removed first, fix2 removed, and fix3 re-applied.

1) Shutdown WebSphere
Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that uninstall is being run against.

2) Start Update Installer

3) Enter the installation location of the WebSphere product you want to remove the fix.

4) Select  "Uninstall maintenance package" operation.

5) Enter the file name of the maintenance package to uninstall (PKxxxxx.jar).

6) UnInstall maintenance package.

7) Restart WebSphere

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

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere.



Additional Information: