Fix (APAR):  PH34711

Status:  Fix

Release:  21.0.0.3

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

Supersedes Fixes:  

CMVC Defect:  

Byte size of APAR:  8731575

Date: 2021-04-05

Abstract:  Vulnerability in Apache MyFaces affects WebSphere Application Server (CVE-2021-26296 CVSS 8.8)

Description/symptom of problem:  


PH34711 resolves the following problem:

ERROR DESCRIPTION:
Vulnerability in Apache MyFaces affects WebSphere Application Server (CVE-2021-26296 CVSS 8.8)

LOCAL FIX:                                                      
Users of jsf-2.2 and jsf-2.3 on WebSphere Liberty can configure the web.xml context parameters ?org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN=secureRandom? and ?org.apache.myfaces.RANDOM_KEY_IN_CSRF_SESSION_TOKEN=secureRandom?.  Users of jsf-2.3 can additionally configure the web.xml context parameter ?org.apache.myfaces.RANDOM_KEY_IN_WEBSOCKET_SESSION_TOKEN=secureRandom?. There are no local fixes available for users of jsf-2.0.
                                                          

PROBLEM SUMMARY:
Vulnerability in Apache MyFaces affects WebSphere Application Server (CVE-2021-26296 CVSS 8.8)

PROBLEM CONCLUSION:
Vulnerability in Apache MyFaces affects WebSphere Application Server (CVE-2021-26296 CVSS 8.8)





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 V1.9.0 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 Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.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 Liberty before applying the iFixes. Restart WebSphere Application Server Liberty 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 Liberty before removing the iFixes. Restart WebSphere Application Server Liberty after removing the iFixes.

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

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere Application Server Liberty.



Additional Information: