ESB-2019.0742 - [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Application Server: Provide misleading information - Existing account 2019-03-08

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0742
          Security Bulletin: Potential Spoofing vulnerability in
               WebSphere Application Server (CVE-2018-1902)
                               8 March 2019

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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:     Provide Misleading Information -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1902  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10795115

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Security Bulletin: Potential Spoofing vulnerability in WebSphere Application
Server (CVE-2018-1902)

Document information

More support for: WebSphere Application Server

Software version: 7.0, 8.0, 8.5, 9.0

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

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

Reference #: 0795115

Modified date: 07 March 2019

Summary

There is a potential spoofing vulnerability in IBM WebSphere Application
Server.

Vulnerability Details

CVEID: CVE-2018-1902
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to
spoof connection information which could be used to launch further attacks
against the system.
CVSS Base Score: 3.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152531 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

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

  o Liberty
  o Version 9.0
  o Version 8.5
  o Version 8.0
  o Version 7.0

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF
containing the APAR 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  PH07036
- --OR--
. Apply Fix Pack 19.0.0.3 or later (targeted availability 2Q2019).

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

For V9.0.0.0 through 9.0.0.10:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH07036
- --OR--
. Apply Fix Pack 9.0.0.11 or later (targeted availability 2Q2019).

For V8.5.0.0 through 8.5.5.15:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH07036
- --OR--
. Apply Fix Pack 8.5.5.16 or later (targeted availability 3Q2019).

For V8.0.0.0 through 8.0.0.15:
. Upgrade to 8.0.0.15 and then apply Interim Fix PH07036
 

For V7.0.0.0 through 7.0.0.45:
. Upgrade to 7.0.0.45 and  then apply Interim Fix PH07036
 

WebSphere Application Server V7 and V8 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.


Change History

07 March 2019: 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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