[security bulletin] HPSBST03154 rev.2 - HP StoreFabric C-series MDS switches and HP C-series Nexus 5K switches running Bash Shell, Remote Code Execution

From: security-alert@hp.com
To: bugtraq@securityfocus.com
Cc:
Subject: [security bulletin] HPSBST03154 rev.2 - HP StoreFabric C-series MDS switches and HP C-series Nexus 5K switches running Bash Shell, Remote Code Execution
Date:


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Note: the current version of the following document is available here:
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/
docDisplay?docId=emr_na-c04487558

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c04487558
Version: 2

HPSBST03154 rev.2 - HP StoreFabric C-series MDS switches and HP C-series
Nexus 5K switches running Bash Shell, Remote Code Execution

NOTICE: The information in this Security Bulletin should be acted upon as
soon as possible.

Release Date: 2014-11-06
Last Updated: 2014-12-08

Potential Security Impact: Remote code execution

Source: Hewlett-Packard Company, HP Software Security Response Team

VULNERABILITY SUMMARY
A potential security vulnerability has been identified with HP StoreFabric
C-series MDS switches and HP C-series Nexus 5K switches running Bash Shell.
This is the Bash Shell vulnerability known as "ShellShock" which could be
exploited remotely to allow execution of code.

References:

CVE-2014-6271
CVE-2014-6277
CVE-2014-6278
CVE-2014-7169
CVE-2014-7186
CVE-2014-7187
Cisco defect id: CSCur01099 (for MDS switches)
Cisco defect id: CSCur05017 (for Nexus switches)
SSRT101747

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

All HP StoreFabric C-series MDS switches
All HP C-series Nexus 5K switches

BACKGROUND

CVSS 2.0 Base Metrics
===========================================================
  Reference              Base Vector             Base Score
CVE-2014-6271    (AV:N/AC:L/Au:N/C:C/I:C/A:C)       10.0
CVE-2014-6277    (AV:N/AC:L/Au:N/C:C/I:C/A:C)       10.0
CVE-2014-6278    (AV:N/AC:L/Au:N/C:C/I:C/A:C)       10.0
CVE-2014-7169    (AV:N/AC:L/Au:N/C:C/I:C/A:C)       10.0
CVE-2014-7186    (AV:N/AC:L/Au:N/C:C/I:C/A:C)       10.0
CVE-2014-7187    (AV:N/AC:L/Au:N/C:C/I:C/A:C)       10.0
===========================================================
             Information on CVSS is documented
            in HP Customer Notice: HPSN-2008-002

RESOLUTION

HP is providing software updates as indicated below to resolve the
vulnerability in HP StoreFabric C-series MDS switches. No other firmware
stream updates are planned beyond the NX-OS 5.x and 6.x versions listed below
for the MDS products.

HP has released and posted the Cisco switch software version NX-OS 6.2(9a) on
HP Support Center (HPSC). This software versions 6.2(9a) has included the
fixes for the vulnerability in HP StoreFabric C-series MDS switches which
currently supporting NX-OS 6.X releases.
HP has released and posted the Cisco switch software version NX-OS 5.2(8e) on
HP Support Center (HPSC). This software version 5.2(8e) has included the fix
for the vulnerability in HP C-series MDS switches which currently supporting
NX-OS 5.X releases.
HP is continuing to actively work on software updates to resolve the
vulnerability in HP C-series Nexus 5k switches. This bulletin will be revised
when these updates become available.

MITIGATION INFORMATION

If updating to a NX-OS version containing the fix is not currently possible,
HP recommends the following steps to reduce the risk of this vulnerability:

The "ssh" or "telnet" features may be disabled by the admin user. All MDS and
Nexus 5K switches can function in this configuration. Access is available
through the console port.

HISTORY
Version:1 (rev.1) - 6 November 2014 Initial release
Version:2 (rev.2) - 8 December 2014 Updated with MDS releases

Third Party Security Patches: Third party security patches that are to be
installed on systems running HP software products should be applied in
accordance with the customer's patch management policy.

Support: For issues about implementing the recommendations of this Security
Bulletin, contact normal HP Services support channel.  For other issues about
the content of this Security Bulletin, send e-mail to security-alert@hp.com.

Report: To report a potential security vulnerability with any HP supported
product, send Email to: security-alert@hp.com

Subscribe: To initiate a subscription to receive future HP Security Bulletin
alerts via Email:
http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins

Security Bulletin Archive: A list of recently released Security Bulletins is
available here:
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/secBullArchive/

Software Product Category: The Software Product Category is represented in
the title by the two characters following HPSB.

3C = 3COM
3P = 3rd Party Software
GN = HP General Software
HF = HP Hardware and Firmware
MP = MPE/iX
MU = Multi-Platform Software
NS = NonStop Servers
OV = OpenVMS
PI = Printing and Imaging
PV = ProCurve
ST = Storage Software
TU = Tru64 UNIX
UX = HP-UX

Copyright 2014 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or editorial errors
or omissions contained herein. The information provided is provided "as is"
without warranty of any kind. To the extent permitted by law, neither HP or
its affiliates, subcontractors or suppliers will be liable for
incidental,special or consequential damages including downtime cost; lost
profits; damages relating to the procurement of substitute products or
services; or damages for loss of data, or software restoration. The
information in this document is subject to change without notice.
Hewlett-Packard Company and the names of Hewlett-Packard products referenced
herein are trademarks of Hewlett-Packard Company in the United States and
other countries. Other product and company names mentioned herein may be
trademarks of their respective owners.

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