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AUSCERT External Security Bulletin Redistribution
ESB-2017.0491
Security Bulletin: IBM MQ and IBM MQ Appliance are
vulnerable to SWEET32 Birthday attack (CVE-2016-2183)
23 February 2017
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AusCERT Security Bulletin Summary
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Product: IBM WebSphere MQ
Publisher: IBM
Operating System: Linux variants
Windows
Virtualisation
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-2183
Reference: ASB-2017.0005
ASB-2016.0120
ESB-2017.0469
ESB-2017.0453
ESB-2017.0433
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21995099
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Security Bulletin: IBM MQ and IBM MQ Appliance are vulnerable to SWEET32 Birthday attack (CVE-2016-2183)
Security Bulletin
Document information
More support for: IBM MQ
SSL
Software version: 7.0.1, 7.1, 7.5, 8.0, 9.0, 9.0.1
Operating system(s): Platform Independent
Software edition: All Editions
Reference #: 1995099
Modified date: 22 February 2017
Summary
A security vulnerability affects IBM MQ and IBM MQ Appliance, that could allow an attacker to obtain sensitive information when using a channel CipherSpec that uses the Triple-DES algorithm. The affected CipherSpecs are:
- - TRIPLE_DES_SHA_US
- - FIPS_WITH_3DES_EDE_CBC_SHA
- - ECDHE_ECDSA_3DES_EDE_CBC_SHA256
- - ECDHE_RSA_3DES_EDE_CBC_SHA256
Vulnerability Details
CVEID: CVE-2016-2183
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the DES/3DES cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116337 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
The following versions are affected:
IBM MQ
9.0.0.0 and 9.0.1 only
IBM MQ Appliance
Maintenance levels between 8.0.0.0 and 8.0.0.5
IBM WebSphere MQ
Maintenance levels between 7.0.1.0 and 7.0.1.14
Maintenance levels between 7.1.0.0 and 7.1.0.8
Maintenance levels between 7.5.0.0 and 7.5.0.7
Maintenance levels between 8.0.0.0 and 8.0.0.5
Remediation/Fixes
IBM Websphere MQ V8.0 & IBM MQ Appliance V8.0
Apply fix pack 8.0.0.6
Workarounds and Mitigations
All versions of MQ can mitigate the vulnerability either by switching to an alternative CipherSpec or by enabling secret key reset.
Resetting SSL/TLS secret keys
Get Notified about Future Security Bulletins
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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
20 February 2017: 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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