IBM Security Bulletin: IBM MQ and IBM MQ Appliance are vulnerable to SWEET32 Birthday attack (CVE-2016-2183) - United States  SECURITY BULLETIN

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 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=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 [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  * Maintenance levels between 8.0.0.0 and 8.0.0.5 
    * 9.0.0.0 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
   
   

REMEDIATION/FIXES
 IBM MQ V9.0 

 * Apply Fix Pack 9.0.0.1 [http://www-01.ibm.com/support/docview.wss?uid=swg27048059]

IBM MQ V8.0 & IBM MQ Appliance V8.0  * Apply Fix Pack 8.0.0.6 [https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+MQ&release=8.0.0.6&platform=All&function=all]. 
 * Apply Fix Pack 8.0.0.6 for IBM MQ Appliance [https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/IBM+MQ+Appliance+M2000&release=8.0.0.6&platform=All&function=all].

IBM MQ V7.5.0  * Apply APAR IV90867 [http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm%7EWebSphere&product=ibm/WebSphere/WebSphere+MQ&release=7.5.0.7&platform=All&function=aparId&apars=IV90867&source=fc].

IBM MQ V7.1.0  * Apply APAR IV90867 [http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm%7EWebSphere&product=ibm/WebSphere/WebSphere+MQ&release=7.1.0.8&platform=All&function=aparId&apars=IV90867&source=fc].

IBM MQ V7.0.1  * Users of MQ 7.0.1 should contact IBM support to request an interim fix for APAR IV90867.

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 [http://www.ibm.com/support/knowledgecenter/SSFKSJ_9.0.0/com.ibm.mq.sec.doc/q014310_.htm]

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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 [http://www.ibm.com/systems/z/solutions/security_subintegrity.html]. 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 [http://www.first.org/cvss/user-guide] 
On-line Calculator v3 [http://www.first.org/cvss/calculator/3.0] 

RELATED INFORMATION
IBM Secure Engineering Web Portal [http://www.ibm.com/security/secure-engineering/bulletins.html] 
IBM Product Security Incident Response Blog [http://www.ibm.com/blogs/psirt] 

CHANGE HISTORY
 20 February 2017: Original version published
21 March 2017: Removed applicability to 9.0.1 release
4 April 2017: Added details for 7.0.1 fix
24 May 2017: Details for 9.0.0.1 added
19 June 2017: Removed HP & Solaris Specifics for 9.0.0.1 

*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. 

RELATED INFORMATION
 A Japanese translation is available [http://www.ibm.com/support/docview.wss?uid=swg21999690]






Cross reference information Segment Product Component Platform Version Edition Business Integration WebSphere MQ SSL Platform Independent 9.0, 8.0, 7.5, 7.1, 7.0.1 All Editions

Question: Is MQ or MQ Appliance impacted by Sweet32 Birthday Attack if we are running triple-DES cipher.? Is MQ or MQ Appliance impacted by Sweet32 Birthday Attack if we are running triple-DES cipher.?

Answer: The following versions are affected: 

 * IBM MQ  * Maintenance levels between 8.0.0.0 and 8.0.0.5 
    * 9.0.0.0 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