-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Note: the current version of the following document is available here: https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04197764 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c04197764 Version: 2 HPSBHF02981 rev.2 - HPE Integrated Lights-Out 2, 3, 4 (iLO2, iLO3, iLO4) 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: 2018-02-08 Last Updated: 2018-02-07 Potential Security Impact: Remote: Disclosure of Information Source: Hewlett Packard Enterprise, Product Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified in HPE Integrated Lights-Out 2, 3, 4 (iLO2, iLO3, iLO4) 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 Superdome Flex Server 1.0 - HPE Integrated Lights-Out 4 (iLO 4) Firmware for ProLiant Gen8 Servers - All, when IPMI is enabled - HPE Integrated Lights-Out 3 (iLO 3) Firmware for ProLiant G7 Servers - All, when IPMI is enabled - HPE Integrated Lights-Out 2 (iLO 2) Firmware for ProLiant G6 Servers - All, when IPMI is enabled BACKGROUND CVSS Base Metrics ================= Reference, CVSS V3 Score/Vector, CVSS V2 Score/Vector CVE-2013-4786 8.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H 8.5 (AV:N/AC:M/Au:S/C:C/I:C/A:C) Information on CVSS is documented in HPE Customer Notice HPSN-2008-002 here: https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c01345499 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 iLO2/3/4 using the Disable IPMI over LAN command. 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 Superdome Flex's RMC: * Refer to the below link for the details: <https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-a00026813en_us> 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 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@xxxxxxx. Report: To report a potential security vulnerability for any HPE supported product: Web form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@xxxxxxx 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 = HPE General Software HF = HPE Hardware and Firmware MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PV = ProCurve ST = Storage Software UX = HP-UX Copyright 2016 Hewlett Packard Enterprise Hewlett Packard Enterprise 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 Enterprise and the names of Hewlett Packard Enterprise products referenced herein are trademarks of Hewlett Packard Enterprise in the United States and other countries. 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