ESB-2017.2685 - [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Application Server: Access confidential data - Remote/unauthenticated 2017-10-24

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2685
Security Bulletin: Multiple vulnerabilities affect Java Server Faces (JSF)
    used by WebSphere Application Server (CVE-2017-1583, CVE-2011-4343)
                              24 October 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM WebSphere Application Server
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
                   z/OS
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1583 CVE-2011-4343 

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22008707

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Security Bulletin: Multiple vulnerabilities affect Java Server Faces (JSF) used
by WebSphere Application Server (CVE-2017-1583, CVE-2011-4343)

Document information

More support for: WebSphere Application Server
General

Software version: 8.0, 8.5, 8.5.5

Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS

Software edition: Advanced, Base, Developer, Enterprise, Express, Liberty,
Network Deployment

Reference #: 2008707

Modified date: 23 October 2017

Security Bulletin

Summary

There are two potential infomation disclosure vulnerabilities that affects the
Java Server Faces (JSF) component used by WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2017-1583
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to
obtain sensitive information caused by improper error handling by MyFaces in
JSF.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
132342 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2011-4343
DESCRIPTION: Apache MyFaces could allow a remote attacker to obtain sensitive
information. An attacker could exploit this vulnerability using specially
crafted parameters to inject EL expressions into input fields mapped as view
parameters and obtain sensitive information.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
132287 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

Affected Products and Versions

These vulnerabilities affects the following versions and releases of IBM
WebSphere Application Server:

  o Liberty jsf-2.2 feature
  o Version 8.5
  o Version 8.0

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF
containing APARs PI87300 and PI87299 for each named product as soon as
practical.

For WebSphere Application Server Liberty: For Liberty both fixes are contained
in the one interim fix number PI87300.
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PI87300        
- --OR--
. Apply Liberty Fix Pack 17.0.0.3 or later.

For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:
For V8.5.0.0 through 8.5.5.12:
. Upgrade to minimal fix pack levels as required by interim fixes and then
apply Interim Fix PI87300 and PI87299
- --OR--
. Apply Fix Pack 8.5.5.13 or later (targetted availability 1Q2018).

For V8.0.0.0 through 8.0.0.14:
. Upgrade to a minimal fix pack levels as required by interim fix and then
apply Interim Fix PI87300 and PI87299        

- --OR--
. Apply Fix Pack 8.0.0.15 or later (targeted availability 2Q2018).

Important note

IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site. Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

23 October 2017: original document published

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF
ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY
ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

                          Cross reference information
  Segment                Product             Component Platform Version Edition
Application  WebSphere Application Server
  Servers    Hypervisor Edition
Application  WebSphere Application Server
  Servers    Liberty Core

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