Fix (APAR):  PH12533

Status:  Fix

Release:  9.0.0.11,9.0.0.10,9.0.0.9,9.0.0.8,9.0.0.7,9.0.0.6,9.0.0.5,9.0.0.4,9.0.0.3,9.0.0.2,9.0.0.1,9.0.0.0

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

Supersedes Fixes:  PH04119;PH04234;PH07725

CMVC Defect:  xxxxxx

Byte size of APAR:  1250918

Date: 2019-08-13

Abstract:  Client-side HTTP parameter pollution vulnerability in WebSphere Application Server Admin Console (CVE-2019-4271)

Description/symptom of problem:  

PH12533 resolves the following problem:

ERROR DESCRIPTION:
Client-side HTTP parameter pollution vulnerability in WebSphere Application Server Admin Console (CVE-2019-4271). 

LOCAL FIX:

PROBLEM SUMMARY:
Client-side HTTP parameter pollution vulnerability in WebSphere Application Server Admin Console (CVE-2019-4271). 

PROBLEM CONCLUSION:
Client-side HTTP parameter pollution vulnerability in WebSphere Application Server Admin Console (CVE-2019-4271). 




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 Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.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