Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.1051
Security Bulletin: IBM Communications Server for Windows is
affected by multiple vulnerabilities
6 April 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Communications Server
Publisher: IBM
Operating System: Windows
Impact/Access: Access Privileged Data -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1447 CVE-2018-1388 CVE-2016-0702
Reference: ESB-2018.1050
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22015200
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: IBM Communications Server for Windows is affected by
multiple vulnerabilities
Security Bulletin
Document information
More support for: Communications Server for Windows
All
Software version: 6.1.3, 6.4, 6.4.0.1, 6.4.0.2, 6.4.0.3, 6.4.0.4
Operating system(s): Windows
Reference #: 2015200
Modified date: 05 April 2018
Summary
IBM Communications Server for Windows has addressed the following
vulnerabilities:
CVE-2018-1388 3RD PARTY GSKit V7 ROBOT Security Advisory
CVE-2016-0702 Side channel attack on modular exponentiation (CVE-2016-0702) in
GSKit
CVE-2018-1447 GSKit and GSKit-Crypto Security Advisory December 2017 Part 1
Vulnerability Details
CVEID: CVE-2018-1388
DESCRIPTION: GSKit V7 may disclose side channel information via discrepencies
between valid and invalid PKCS#1 padding.
CVSS Base Score: 9.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
138212 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
- -
CVEID: CVE-2016-0702
DESCRIPTION: OpenSSL could allow a local attacker to obtain sensitive
information, caused by a side-channel attack against a system based on the
Intel Sandy-Bridge microarchitecture. An attacker could exploit this
vulnerability to recover RSA keys.
CVSS Base Score: 2.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
111144 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
- -
CVEID: CVE-2018-1447
DESCRIPTION: The GSKit CMS KDB logic fails to salt the hash function resulting
in weaker than expected protection of passwords. A weak password may be
recovered. Note: After update the customer should change password to ensure
the new password is stored more securely. Products should encourage customers
to take this step as a high priority action.
CVSS Base Score: 5.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
139972 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
+-------------------------------------------------+-----------------+
| Affected IBM Communications Server for Windows |Affected Versions|
+-------------------------------------------------+-----------------+
|Communications Server for Windows |6.4.0 |
+-------------------------------------------------+-----------------+
|Communications Server for Windows |6.1.3 |
+-------------------------------------------------+-----------------+
Remediation/Fixes
+------------------------------+--------------+--------+--------------------------------+
| Product | VRMF | APAR | Remediation / First Fix |
+------------------------------+--------------+--------+--------------------------------+
| | | |(6.4.0.7 or lower) Link to FIX |
| | | |to update CSWIN to 6.4.0.8 with |
|Communications Server for |6.4.0.7 |JR59019 |fix included |
|Windows |6.4.0.8 | | |
| | | |(6.4.0.8) Link to FIX to apply |
| | | |to existing CSWIN 6.4.0.8 |
+------------------------------+--------------+--------+--------------------------------+
|Communications Server for |6.1.3.5 |JR59029 |Link to FIX |
|Windows | | | |
+------------------------------+--------------+--------+--------------------------------+
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
*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.
Product Alias/Synonym
Communications Server commserver comm server sna cswin cswindows
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=xrlM
-----END PGP SIGNATURE-----