Security Bulletin
Summary
There is a vulnerability in IBM(R); SDK Java(TM) Technology Edition, Version 7 that is used by IBM System Networking Switch Center. This vulnerability, commonly referred to as "SLOTH", was disclosed as part of the IBM Java SDK updates in January 2016.
Vulnerability Details
Summary
There is a vulnerability in IBM® SDK Java™ Technology Edition, Version 7 that is used by IBM System Networking Switch Center. This vulnerability, commonly referred to as "SLOTH", was disclosed as part of the IBM Java SDK updates in January 2016.
Vulnerability Details
CVE-ID: CVE-2015-7575
Description: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials. This vulnerability is commonly referred to as "SLOTH".
CVSS Base Score: 7.1
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/109415
for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/UI:U/C:H/I:L/A:N)
Affected products and versions
All versions of IBM System Networking Switch Center prior to 7.3.2.0.
Remediation/Fixes
IBM System Networking Switch Center 7.3.2.0.
The install package can be found on IBM's Passport Advantage
website:
Workarounds and Mitigations
For CVE-2015-7575:
Users of Java 7 and later can address the issue by updating the /jre/lib/security/java.security file as follows (both steps are required):
- Add MD5 to the jdk.certpath.disabledAlgorithms property — e.g. jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024, MD5
- Add MD5withRSA to the jdk.tls.disabledAlgorithms property — e.g. jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768, MD5withRSA
References
Related Information
IBM
Secure Engineering Web Portal
IBM Product Security
Incident Response Blog
Acknowledgement
CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France
Change History
29 February 2016: 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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References
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
30 January 2019
UID
ibm1MIGR-5099203