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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.1349
 Security Bulletin: Flexera InstallShield has a vulnerability that affects
        Content Manager Enterprise Edition pClient (CVE-2016-2542)
                                30 May 2016

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

Product:           IBM Content Manager Enterprise Edition
Publisher:         IBM
Operating System:  Windows
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-2542  

Reference:         ESB-2016.1085
                   ESB-2016.0998
                   ESB-2016.0986
                   ESB-2016.0806

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21982134

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Security Bulletin: Flexera InstallShield has a vulnerability that affects
Content Manager Enterprise Edition pClient. (CVE-2016-2542)

Security Bulletin

Document information

More support for:

Content Manager Enterprise Edition

Software version:

8.4.3

Operating system(s):

Windows

Reference #:

1982134

Modified date:

2016-05-27

Summary

Flexera InstallShield has a security vulnerability that could be exploited in
Content Manager Enterprise Edition V8.4.3 pClient.

Vulnerability Details

CVEID:

CVE-2016-2542

DESCRIPTION:

Flexera InstallShield could allow a local attacker to gain elevated
privileges on the system, caused by an untrusted search path. An attacker
could exploit this vulnerability using a Trojan horse DLL in the current
working directory of a setup-launcher executable file to gain elevated
privileges on the system.

CVSS Base Score: 7.8

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/110914

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Content Manager Enterprise Edition V8.4.3

Remediation/Fixes

Refer to the Workarounds and Mitigations section.

Workarounds and Mitigations

Install the fix pack by running the installation wizard or by running a
silent installation.

To avoid an untrusted search path vulnerability where users could gain
increased privileges, perform the following additional steps:

1. Clear all contents (files, sub-directories and etc.,) of your default
download directory/location, if any.

2. Create a new secure directory in temporary location (such that elevated
privileges are required to access this directory).

3. Copy/extract the setup.exe executable to the secure directory created in
Step 2.

4. Launch the executable from the secure directory and wait until it
completes.

Important: Do not enter line breaks in the command that you enter to start
the installation program.

Get Notified about Future Security Bulletins

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to be notified of important product support alerts like this.

References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

27 May 2016: Original version 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.

- --------------------------END INCLUDED TEXT--------------------

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