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Security Bulletin: Vulnerability in InstallShield affects IBM WebSphere eXtreme Scale .NET client installation (CVE-2016-2542)

Security Bulletin


Summary

InstallShield generates installation executables which are vulnerable to an DLL-planting vulnerability during installation of the .NET client

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

WebSphere eXtreme Scale 8.6 .NET client installer

Remediation/Fixes

Product

VRMFAPARRemediation/First Fix
WebSphere eXtreme Scale8.6PI64299Refer to the Version 8.6 table in the Recommended Fixes page for WebSphere eXtreme Scale.

Workarounds and Mitigations

No workaround exists.

No installations should be performed using the setup.exe for the WebSphere eXtreme Scale .NET client, including what is delivered with WebSphere eXtreme Scale for Windows. An install.exe for the WebSphere eXtreme Scale.NET client is available with the recommended fix. This does not change what is installed, but makes the installation process itself safe from the vulnerability.

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

21 July 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
15 June 2018

UID

swg21985366

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