ESB-2017.2422 - [Win][Linux][AIX] IBM Products: Root compromise - Existing account 2017-09-25

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2422
Security Bulletin: Open Source Samba Samba Vulnerabilities (CVE-2017-7494)
                             25 September 2017

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

Product:           IBM PureApplication Software Suite
                   IBM Bluemix Local System
                   IBM PureApplication System
Publisher:         IBM
Operating System:  AIX
                   Linux variants
                   Windows
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7494  

Reference:         ESB-2017.1345
                   ESB-2017.1330
                   ESB-2017.1329
                   ESB-2017.1328

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22007631

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Security Bulletin: Open Source Samba Samba Vulnerabilities (CVE-2017-7494)

Document information

More support for:

PureApplication System

Security

Software version:

2.2.1.0, 2.2.2.0, 2.2.2.1, 2.2.2.2, 2.2.3.0, 2.2.3.1, 2.2.3.2

Operating system(s):

AIX, Linux, Windows

Reference #:

2007631

Modified date:

22 September 2017


Security Bulletin

Summary

There are vulnerabilities in the Open Source Samba that is used by the OS
Images for IBM PureApplication Software Suite, IBM Bluemix Local System
V2.2.2.1 and IBM PureApplication System/Software

Vulnerability Details

Relevant CVE Information:

CVEID:

CVE-2017-7494

DESCRIPTION: Samba could allow a remote authenticated attacker to execute
arbitrary code on the system, caused by improper access to named pipe
endpoints. By uploading a specially-crafted shared library to a writeable
share, an attacker could exploit this vulnerability to execute arbitrary code
on the system.

CVSS Base Score: 7.5

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/126417

for the current score

CVSS Environmental Score*: Undefined

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

Affected Products and Versions

IBM PureApplication Software Suite V2.2.1.0

IBM Bluemix Local System V2.2.2.1

IBM PureApplication System/Software V2.2.1.0

IBM PureApplication System/Software V2.2.2.0

IBM PureApplication System/Software V2.2.2.1

IBM PureApplication System/Software V2.2.2.2

IBM PureApplication System/Software V2.2.3.0

IBM PureApplication System/Software V2.2.3.1

IBM PureApplication System/Software V2.2.3.2

Remediation/Fixes

1. Download the update:

http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.3.2&platform=All&function=fixId&fixids=samba_efix_Sept_2017-sys&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp&source=fc

2. Add the emergency fixes to the catalog.
For detailed steps, see Adding emergency fixes to the catalog.

3. For deployed instances, apply this emergency fix on the VM.

4. Restart the deployed instance after the fix is applied.


References

Complete CVSS v3 Guide

On-line Calculator v3



Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog



Change History

September 22, 2017: 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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