ESB-2017.2400 - [Appliance] HPE NonStop Samba: Multiple vulnerabilities 2017-09-22

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2400
                  HPESBNS03775 rev.1 - HPE NonStop Samba
                             22 September 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           HPE NonStop Samba
Publisher:         Hewlett-Packard
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12163 CVE-2017-12150 

Reference:         ESB-2017.2398

Original Bulletin: 
   https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-hpesbns03775en_us

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Note: the current version of the following document is available here:
https://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-hpesbns03775en_us

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, 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 Base Metrics
  =================
  Reference, CVSS V3 Score/Vector, CVSS V2 Score/Vector

    CVE-2017-12150
      7.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
      6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)

    CVE-2017-12163
      0.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
      7.2 (AV:L/AC:L/Au:N/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

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:
  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 = 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. Other product and company names mentioned herein
may be trademarks of their respective owners.

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