ESB-2018.0480 - [Linux][HP-UX][Solaris][AIX] IBM Sterling Connect:Express for UNIX: Access privileged data - Remote/unauthenticated 2018-02-16

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0480
Security Bulletin: IBM Sterling Connect:Express for UNIX is Affected by the
             Following OpenSSL Vulnerabilities (CVE-2017-3637,
                       CVE-2017-3737, CVE-2017-3738)
                             16 February 2018

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

Product:           IBM Sterling Connect:Express for UNIX
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-3738 CVE-2017-3737 CVE-2017-3736
                   CVE-2017-3637 CVE-2016-0701 

Reference:         ASB-2018.0033
                   ASB-2018.0026
                   ASB-2018.0017
                   ASB-2018.0013
                   ESB-2016.0479
                   ESB-2016.0447
                   ESB-2016.0279
                   ESB-2016.0250

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22013705

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Security Bulletin: IBM Sterling Connect:Express for UNIX is Affected by the
Following OpenSSL Vulnerabilities (CVE-2017-3637, CVE-2017-3737, CVE-2017-3738)

Document information

More support for: Sterling Connect:Express for UNIX

Software version: 1.5

Operating system(s): AIX, HP-UX, Linux, Solaris

Reference #: 2013705

Modified date: 15 February 2018

Security Bulletin

Summary

Security vulnerabilities were disclosed on Nov 1, 2017 and Dec 6, 2017 by the
OpenSSL Project. OpenSSl is used by IBM Sterling Connect:Express for UNIX. IBM
Sterling Connect:Express for UNIX has addressed the applicable CVEs.

Vulnerability Details

CVE-ID: CVE-2017-3736
Description: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by a carry propagation flaw in the the x86_64 Montgomery
squaring function bn_sqrx8x_internal(). An attacker with online access to an
unpatched system could exploit this vulnerability to obtain information about
the private key.

CVSS Base Score: 5.9
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
134397 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVE-ID: CVE-2017-3737

Description: An unspecified vulnerability in multiple Oracle products could
allow an unauthenticated attacker to cause low confidentiality impact, low
integrity impact, and high availability impact.

CVSS Base Score: 5.3
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
136077 for more informationCVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVE-ID: CVE-2017-3736

Description: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by an overflow bug in the AVX2 Montgomery multiplication
procedure used in exponentiation with 1024-bit moduli. An attacker could
exploit this vulnerability to obtain information about the private key.
Note: In order to exploit this vulnerability, the server would have to share
the DH1024 private key among multiple clients, which is no longer an option
since CVE-2016-0701.

CVSS Base Score: 3.1
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/
136078 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM Sterling Connect:Express for UNIX 1.5.0.15

  o All versions prior to 1.5.0.15 iFix 150-1507

Remediation/Fixes

The recommended solution is to apply the fix as soon as practical. Please see
below for information about the available fixes.

+--------+---------+--------------------------------------------------------+
|VRMF    |APAR     |Remediation/First Fix                                   |
+--------+---------+--------------------------------------------------------+
|1.5.0.15|TBD      |Apply 1.5.0.15 iFix 150-1507, available on Fix Central. |
+--------+---------+--------------------------------------------------------+

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
alerts like this.

Important note

IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site. Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v3 Guide
On-line Calculator v3


Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

14 February 2018: Original Version Published

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF
ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY
ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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