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Security Bulletin: Vulnerabilities in IBM Java Runtime affect IBM Financial Transaction Manager for ACH Services, Check Services and Corporate Payment Services (
CVE-2016-0466, CVE-2015-7575 )

Security Bulletin


Summary

There are multiple vulnerabilities in IBM Runtime Environment Java Technology Edition, Version 7 that is used by Financial Transaction Manager for ACH Services, Check Services, and Corporate Payment Services. These issues were disclosed as part of the IBM Java SDK updates in January 2016 and includes the vulnerability commonly referred to as “SLOTH”.

Vulnerability Details

CVEID: CVE-2016-0466
DESCRIPTION:
An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109948 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: 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 https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 for the 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

- FTM for ACH v3.0.0.0, v3.0.0.1, v3.0.0.2, v3.0.0.3, v3.0.0.4, v3.0.0.5, v3.0.0.6, v3.0.0.7, v3.0.0.8, v3.0.0.9, v3.0.0.10, 3.0.0.11, 3.0.0.12

- FTM for Check v3.0.0.0, v3.0.0.1, v3.0.0.2, v3.0.0.3, v3.0.0.4, v3.0.0.5, v3.0.0.6, v3.0.0.7, v3.0.0.8, v3.0.0.9, v3.0.0.10, 3.0.0.11, 3.0.0.12

- FTM for CPS v3.0.0.0, v3.0.0.1, v3.0.0.2, v3.0.0.3, v3.0.0.4, v3.0.0.5, v3.0.0.6, v3.0.0.7, v3.0.0.8, v3.0.0.9, v3.0.0.10, 3.0.0.11, 3.0.0.12

Remediation/Fixes

Product

VRMFAPARRemediation/First Fix
FTM for ACH Services3.0.0.0 through 3.0.0.12PI57476Apply 3.0.0-FTM-ACH-MP-fp0013 or later.
FTM for Check Services3.0.0.0 through 3.0.0.12PI57476Apply 3.0.0-FTM-Check-MP-fp0013 or later.
FTM for CPS Services3.0.0.0 through 3.0.0.12PI57477Apply 3.0.0-FTM-CPS-MP-fp0013 or later.

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

Java 6 requires code changes in the JSSE component in addition to the java.security file modifications, so upgrading the JDK is the only solution.

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References

Off

Acknowledgement

CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France

Change History

31 March 2016: Updated for affected versions and remediation fixes.
3 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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
16 June 2018

UID

swg21976143