ESB-2017.2753.2 - UPDATE [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Portal: Multiple vulnerabilities 2017-11-08

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2017.2753.2
 Security Bulletin: Vulnerabilities in Oracle Outside In Technology affect
           IBM WebSphere Portal (CVE-2017-10141, CVE-2017-10196)
                              8 November 2017

===========================================================================

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

Product:           IBM WebSphere Portal
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
                   z/OS
Impact/Access:     Modify Arbitrary Files -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-10196 CVE-2017-10141 CVE-2017-10051

Reference:         ESB-2017.1262
                   ASB-2017.0104.2

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22009996

Revision History:  November  8 2017: CVE-2017-10051 included
                   October  31 2017: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Vulnerabilities in Oracle Outside In Technology affect IBM
WebSphere Portal (CVE-2017-10051, CVE-2017-10141, CVE-2017-10196)

Security Bulletin

Summary

Oracle Outside In Technology is used by and contained in IBM WebSphere Portal.
A fix is available for security vulnerabilities in Oracle Outside In Technology
that affect IBM WebSphere Portal (CVE-2017-10051, CVE-2017-10141,
CVE-2017-10196).

Vulnerability Details

CVEID: CVE-2017-10196
DESCRIPTION: An unspecified vulnerability in Oracle Fusion Middleware related
to the Outside In Technology Outside In Filters component could allow an
unauthenticated attacker to cause no confidentiality impact, low integrity
impact, and high availability impact.
CVSS Base Score: 8.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
128936 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H)

CVEID: CVE-2017-10141
DESCRIPTION: An unspecified vulnerability in Oracle Fusion Middleware related
to the Outside In Technology Outside In Filters component could allow an
unauthenticated attacker to cause no confidentiality impact, low integrity
impact, and high availability impact.
CVSS Base Score: 8.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
128897 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H)

CVEID: CVE-2017-10051
DESCRIPTION: An unspecified vulnerability in Oracle Fusion Middleware related
to the Outside In Technology Outside In Filters component could allow an
authenticated attacker to cause a denial of service resulting in a high
availability impact using unknown attack vectors.
CVSS Base Score: 5.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
133916 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

+-------------------------------+--------------------------+
|       Affected Product        |    Affected Versions     |
+-------------------------------+--------------------------+
|IBM WebSphere Portal           |9.0.0.0 - 9.0.0.0 CF14    |
+-------------------------------+--------------------------+
|IBM WebSphere Portal           |8.5.0.0 - 8.5.0.0 CF14    |
+-------------------------------+--------------------------+
|IBM WebSphere Portal           |8.0.0.0 - 8.0.0.1 CF22    |
+-------------------------------+--------------------------+
|IBM WebSphere Portal           |7.0.0.0 - 7.0.0.2 CF30    |
+-------------------------------+--------------------------+
For unsupported versions IBM recommends upgrading to a fixed, supported version
of the product.


Remediation/Fixes

+------------+-----------+----------+-----------------------------------------+
|Product     |VRMF       |APARs     |Fix                                      |
+------------+-----------+----------+-----------------------------------------+
|IBM         |9.0        |PI84847   |  o Upgrade to Cumulative Fix 14 (CF14)  |
|WebSphere   |           |          |    and then apply the Interim Fix       |
|Portal      |           |          |    PI84847.                             |
|            |           |          |                                         |
|            |           |          |--or--                                   |
|            |           |          |                                         |
|            |           |          |  o Upgrade to Cumulative Fix 15 (CF15), |
|            |           |          |    targeted for 4Q 2017.                |
|            |           |          |                                         |
|            |           |          |(Combined Cumulative Fixes for WebSphere |
|            |           |          |Portal 9.0 )                             |
+------------+-----------+----------+-----------------------------------------+
|IBM         |8.5        |PI84847   |  o Upgrade to Cumulative Fix 14 (CF14)  |
|WebSphere   |           |          |    and then apply the Interim Fix       |
|Portal      |           |          |    PI84847.                             |
|            |           |          |                                         |
|            |           |          |--or--                                   |
|            |           |          |                                         |
|            |           |          |  o Upgrade to Cumulative Fix 15 (CF15), |
|            |           |          |    targeted for 4Q 2017.                |
|            |           |          |                                         |
|            |           |          |(Combined Cumulative Fixes for WebSphere |
|            |           |          |Portal 8.5.0.0 )                         |
+------------+-----------+----------+-----------------------------------------+
|IBM         |8.0.0      |PI84847   |  o Upgrade to Fix Pack 8.0.0.1 with     |
|WebSphere   |through    |          |    Cumulative Fix 22 (CF22) and then    |
|Portal      |8.0.0.1    |          |    apply the Interim Fix PI84847.       |
|            |           |          |                                         |
|            |           |          |(Combined Cumulative Fixes for WebSphere |
|            |           |          |Portal 8.0.0.1)                          |
+------------+-----------+----------+-----------------------------------------+
|IBM         |7.0.0      |PI84847   |  o Upgrade to Fix Pack 7.0.0.2 with     |
|WebSphere   |through    |          |    Cumulative Fix 30 (CF30) and then    |
|Portal      |7.0.0.2    |          |    apply the Interim Fix PI84847.       |
|            |           |          |                                         |
|            |           |          |(Combined Cumulative fixes for WebSphere |
|            |           |          |Portal 7.0.0.2)                          |
+------------+-----------+----------+-----------------------------------------+


Workarounds and Mitigations

As a workaround until the fix has been applied, you can disable the conversion
of documents by removing the convertor entries in the file convertors.xml. 

Please follow the steps below to implement the workaround:
1. Stop the IBM WebSphere Portal Server. 
2. Find convertors.xml in <portal_server_root>/wp_profile/PortalServer/dcs
3. Backup this file to restore it after the fix has been applied. 
4. Remove all <input> and <output> entries inside all <convertor> tags in the
convertors.xml file as shown in the following example. 

Find all sections like this: 
<convertor>
<input>application/vnd.openxmlformats-officedocument.wordprocessingml.document
</input>
<input>application/msword</input>
<input>application/vnd.lotus-wordpro</input>
<input>application/html</input>
<input>application/rtf</input>
...
<output>application/vnd.ibm-odcrte.zip</output>
...
<property name="class" value="com.ibm.wps.odc.convert.text.Stellent2RTE"/>
</convertor>

and change them like this: 
<convertor>
<property name="class" value="com.ibm.wps.odc.convert.text.Stellent2RTE"/>
</convertor> 

5. Restart the IBM WebSphere Portal Server.

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

30 October 2017: Original Version Published
7 November 2017: CVE-2017-10051 included

*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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