Print | Rate this content

HPSBHF02981 rev.4 - HPE Integrated Lights-Out 2, 3, 4, 5 (iLO 2, iLO 3, iLO 4, and iLO 5) and HPE Superdome Flex RMC - IPMI 2.0 RCMP+ Authentication Remote Password Hash Vulnerability (RAKP)

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c04197764

Version: 5

HPSBHF02981 rev.4 - HPE Integrated Lights-Out 2, 3, 4, 5 (iLO 2, iLO 3, iLO 4, and iLO 5) and HPE Superdome Flex RMC - 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: 2018-05-29

Last Updated: 2018-06-13


Potential Security Impact: Remote: Disclosure of Information

Source: Hewlett Packard Enterprise, HPE Product Security Response Team

VULNERABILITY SUMMARY

A potential security vulnerability has been identified in HPE Integrated Lights-Out 2, 3, 4, 5 (iLO 2, iLO 3, iLO 4, and iLO 5) and HPE Superdome Flex RMC. The vulnerability could be exploited to allow an attacker to gain unauthorized privileges and unauthorized access to privileged information.

Note: - This vulnerability also impacts the RMC of the "Superdome Flex" Server.

References: CVE-2013-4786

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

  • HPE Integrated Lights-Out 5 (iLO 5) for HPE Gen10 Servers - All Gen10, including Synergy Gen10 Compute Modules when IPMI over LAN is enabled - IPMI over LAN is disabled by default on iLO 5
  • HPE Integrated Lights-Out 4 (iLO 4) - All Gen8 and Gen9, including Synergy Gen9 Compute Modules when IPMI over LAN is enabled
  • HPE Integrated Lights-Out 3 (iLO 3) - All G7 when IPMI over LAN is enabled
  • HPE Integrated Lights-Out 2 (iLO 2) - All G6 when IPMI over LAN is enabled
  • HPE Superdome Flex Server - All when IPMI over LAN is enabled
  • HPE Integrity Superdome X Server - All when IPMI over LAN is enabled

BACKGROUND

CVSS Version 3.0 and Version 2.0 Base Metrics
Reference
V3 Vector
V3 Base Score
V2 Vector
V2 Base Score
CVE-2013-4786
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
8.3
(AV:N/AC:M/Au:S/C:C/I:C/A:C)
8.5
Information on CVSS is documented in HPE 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:

  1. If you do not need to use IPMI, disable it. You can disable IPMI on iLO 2, 3, 4 and 5 using the Disable IPMI over LAN command. IPMI over LAN is disabled by default on iLO 5.
  2. Maintain the latest iLO firmware that contains the most recent security patches.
  3. Employ best practices in the management of the protocols and passwords on your systems and networks. Use strong passwords wherever possible.
  4. 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.

For HPE Integrity Servers: Superdome X and Superdome Flex:

HISTORY
  • Version:1 (rev.1) - 1 April 2014 Initial release
  • Version:2 (rev.2) - 7 February 2018 Include RMC of HPE Superdome Flex as an affected product
  • Version:3 (rev.3) - 21 May 2018 Added iLO 5 Gen10 and iLO 4/5 Gen9 and Gen10 Synergy Compute Modules and Integrity Servers
  • Version:4 (rev.4) - 31 May 2018 Updated HPE Integrity Superdome X Server Information

Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) 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 HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com.

Report: To report a potential security vulnerability for any HPE supported product:

Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice

Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive

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
MU = Multi-Platform Software
NS = NonStop Servers
OV = OpenVMS
PV = ProCurve
ST = Storage Software
UX = HP-UX

©Copyright 2019 Hewlett Packard Enterprise Development LP
Hewlett Packard Enterprise Development 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 HPE nor 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 Enterprise Development and the names of Hewlett Packard Enterprise Development products referenced herein are trademarks of Hewlett Packard Enterprise Development in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.

Legal Disclaimer: Products sold prior to the November 1, 2015 separation of Hewlett-Packard Company into Hewlett Packard Enterprise Company and HP Inc. may have older product names and model numbers that differ from current models.

Provide feedback

Please rate the information on this page to help us improve our content. Thank you!
Document title: HPSBHF02981 rev.4 - HPE Integrated Lights-Out 2, 3, 4, 5 (iLO 2, iLO 3, iLO 4, and iLO 5) and HPE Superdome Flex RMC - IPMI 2.0 RCMP+ Authentication Remote Password Hash Vulnerability (RAKP)
Document ID: emr_na-c04197764-5
How helpful was this document?
How can we improve this document?
Note: Only English language comments can be accepted at this time.
Please wait while we process your request.