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HPESBNS03775 rev.1 - HPE NonStop Samba, Remote Disclosure of Information, Authentication Bypass, Unauthorized Elevation of Privilege

SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: hpesbns03775en_us

Version: 1

HPESBNS03775 rev.1 - HPE NonStop Samba, Remote Disclosure of Information, Authentication Bypass, Unauthorized Elevation of Privilege
NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.

Release Date: 2017-09-20

Last Updated: 2017-09-20


Potential Security Impact: Remote: Authentication Bypass, Disclosure of Information, Unauthorized Elevation of Privilege

Source: Hewlett Packard Enterprise, HPE Product Security Response Team

VULNERABILITY SUMMARY

HPE NonStop Server using Samba is vulnerable to remote disclosure of information, authentication bypass, and unauthorized privilege elevation.

References:
  • CVE-2017-12150 - Man-in-the-middle attack
  • CVE-2017-12163 - Remote Information Disclosure

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

Samba on NonStop L-Series: T1201L01 through T1201L01^AAO; H and J-Series: T1201H01 through T1201H01^AAN

BACKGROUND

CVSS Version 3.0 and Version 2.0 Base Metrics
Reference
V3 Vector
V3 Base Score
V2 Vector
V2 Base Score
CVE-2017-12150
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
6.8
CVE-2017-12163
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
0.0
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
7.2
Information on CVSS is documented in HPE Customer Notice: HPSN-2008-002

RESOLUTION

Hewlett Packard Enterprise has provided the following instructions to address these vulnerabilities in HPE NonStop L-Series T1201H01 through T1201H01^AAN and H and J Series T1201H01 through T1201H01^AAN:

Workaround for CVE-2017-12150:

  • The missing implied signing for 'smb2mount -e', 'smbcacls -e' and 'smbcquotas -e' can be enforced by explicitly using '--signing=required' on the command line or "client signing = required" in smb.conf.

Workaround for CVE-2017-12163:

  • As this is an SMB1-only vulnerability, it can be avoided by Setting the server to only use SMB2 via adding: server min protocol = SMB2_02 to the [global] section of the file smb.conf, and thenrestarting the SMB daemon (smbd).

Patch updates: Install the following SPR as appropriate for your release version: Install the following SPR as appropriate for your release version:

  • L-Series:

    • T1201L01^AAQ (NS-Samba)

      • This SPR is already present in these RVUs: None

      • This SPR is usable with the following RVUs: L15.02 through L17.08

  • J-Series:

    • T1201H01^AAP (NS-Samba)

      • This SPR is already present in these RVUs: None

      • This SPR is usable with the following RVUs:

        • J06.18 through J06.21.01

NonStop Samba is not impacted by CVE-2017-12151.

Note: Please refer to Hotstuff HS03363 for additional details.

HISTORY
Version:1 (rev.1) - 20 September 2017 Initial release

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

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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.

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Document title: HPESBNS03775 rev.1 - HPE NonStop Samba, Remote Disclosure of Information, Authentication Bypass, Unauthorized Elevation of Privilege
Document ID: emr_na-hpesbns03775en_us-3
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