Operational Defect Database
BugZero found this defect 2168 days ago.
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Hewlett Packard Enterprise | c04197764
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)
Last update date:
12/12/2023
Affected products:
HPE Integrity Superdome X Server
HPE Superdome Flex Server
HPE Integrated Lights-Out 2 (iLO 2)
HPE Integrated Lights-Out 3 (iLO 3)
HPE Integrated Lights-Out 4 (iLO 4)
HPE Integrated Lights-Out 5 (iLO 5) for HPE Gen10 Servers
Affected releases:
No affected releases provided.
Fixed releases:
No fixed releases provided.
Description:
Info
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: 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. 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. For HPE Integrity Servers: Superdome X and Superdome Flex: 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 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: Web Form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com 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 System management and security procedures must be reviewed frequently to maintain system integrity. HPE is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions. "HPE is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HPE products the important security information contained in this Bulletin. HPE recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HPE does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HPE will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HPE disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement." ©Copyright 2024 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.
Scope
None
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 iLO 2, 3, 4 and 5 using the Disable IPMI over LAN command. IPMI over LAN is disabled by default on iLO 5. 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. For HPE Integrity Servers: Superdome X and Superdome Flex: 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 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: Web Form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com 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
