ESB-2018.0043 - [Win][UNIX/Linux][IBM i] IBM WebSphere Application Server: Execute arbitrary code/commands - Remote/unauthenticated 2018-01-04

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0043
        Security vulnerability in Apache Commons FileUpload used by
              WebSphere Application Server (CVE-2016-1000031)
                              4 January 2018

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

Product:           IBM WebSphere Application Server
Publisher:         IBM
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   IBM i
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-1000031  

Reference:         ESB-2017.3224
                   ESB-2017.3099
                   ESB-2017.3098
                   ESB-2016.2436

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22011428

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Security Bulletin: Security vulnerability in Apache Commons FileUpload
used by WebSphere Application Server (CVE-2016-1000031)

Document information

More support for: WebSphere Application Server

General

Software version: 8.0, 8.5, 8.5.5, 9.0

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

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

Reference #: 2011428

Modified date: 03 January 2018

Security Bulletin

Summary

There is a potential vulnerabilty in the Apache Conmons FileUpload used
by WebSphere Application Server traditional and WebSphere Application
Server Liberty.

Vulnerability Details

CVEID: CVE-2016-1000031
DESCRIPTION: Apache Commons FileUpload, as used in several products,
could allow a remote attacker to execute arbitrary code on the system,
caused by deserialization of untrusted data in DiskFileItem class of the
FileUpload library. A remote attacker could exploit this vulnerability to
execute arbitrary code under the context of the current process.
CVSS Base Score: 9.8
CVSS Temporal Score: See 
https://exchange.xforce.ibmcloud.com/vulnerabilities/117957 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM
WebSphere Application Server:

Liberty
Version 9.0
Version 8.5
Version 8.0

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF
containing APARs PI90804 for each named product as soon as practical.

For WebSphere Application Server Liberty:

- - Upgrade to minimal fix pack levels as required by interim fix and then
apply Interim Fix PI90804
- --OR--
- - Apply Liberty Fix Pack 18.0.0.1 or later (targeted availability 1Q2018).

For WebSphere Application Server traditional and WebSphere Application
Server Hypervisor Edition:

For V9.0.0.0 through 9.0.0.6:
- - Upgrade to minimal fix pack levels as required by interim fixes and
then apply Interim Fix PI90804
- --OR--
- - Apply Fix Pack 9.0.0.7 or later (targeted availability 1Q2018).

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 PI90804
- --OR--
- - Apply Fix Pack 8.5.5.13 or later (targeted 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 PI90804
- --OR--
- - Apply Fix Pack 8.0.0.15 or later (targeted availability 2Q2018).

Workarounds and Mitigations

none

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

03 January 2018: 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.

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