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HP Security Bulletin HPSBHF02981

HP Security Bulletin HPSBHF02981
Posted Apr 3, 2014
Authored by HP | Site hp.com

HP Security Bulletin HPSBHF02981 - A potential security vulnerability has been identified in HP Integrated Lights-Out 2, 3, and 4 (iLO2, iLO3, iLO4). The vulnerability could be exploited to allow an attacker to gain unauthorized privileges and unauthorized access to privileged information. Revision 1 of this advisory.

tags | advisory
advisories | CVE-2013-4786
SHA-256 | 5ea0494629de01edae0a6065171716d3b43bdb84b9247ee48f2b98599d24cad6

HP Security Bulletin HPSBHF02981

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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-c04197764

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c04197764
Version: 1

HPSBHF02981 rev.1 - HP Integrated Lights-Out 2, 3, and 4 (iLO2, iLO3, iLO4),
IPMI 2.0 RCMP+ Authentication Remote Password Hash Vulnerability (RAKP)

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

Release Date: 2014-03-13
Last Updated: 2014-04-03

Potential Security Impact: Disclosure of information, elevation of
privileges, privileged access.

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

VULNERABILITY SUMMARY
A potential security vulnerability has been identified in HP Integrated
Lights-Out 2, 3, and 4 (iLO2, iLO3, iLO4). The vulnerability could be
exploited to allow an attacker to gain unauthorized privileges and
unauthorized access to privileged information.

References: CVE-2013-4786 (SSRT101367)

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP Integrated Lights-Out 2, 3, and 4 (iLO2, iLO3, iLO4)

BACKGROUND

CVSS 2.0 Base Metrics
===========================================================
Reference Base Vector Base Score
CVE-2013-4786 (AV:N/AC:M/Au:S/C:C/I:C/A:C) 8.5
===========================================================
Information on CVSS is documented
in HP Customer Notice: HPSN-2008-002

RESOLUTION

There is no resolution to this issue. The authentication process for the IPMI
2.0 specification mandates that the server send a salted SHA1 or MD5 hash of
the requested user's password to the client, prior to the client
authenticating. The BMC returns the password hash for any valid user account
requested. This password hash can be broken using an offline brute force or
dictionary attack. Because this functionality is a key part of the IPMI 2.0
specification, there is no way to fix the problem without deviating from the
IPMI 2.0 specification. HP recommends the following actions to mitigate the
risk this introduces:

If you do not need to use IPMI, disable it. You can disable IPMI on iLO2/3/4
using the Disable IPMI over LAN command.
Maintain the latest iLO firmware that contains the most recent security
patches.
Employ best practices in the management of the protocols and passwords on
your systems and networks. Use strong passwords wherever possible.
If you must use IPMI, use a separate management LAN or VLAN, Access Control
Lists (ACLs), or VPN to limit and restrict access to your iLO management
interfaces.

HISTORY
Version:1 (rev.1) - 1 April 2014 Initial release

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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