# Security Bulletin: Vulnerability in IBM Java SDK affects Rational Functional Tester (CVE-2016-5542)

### Security Bulletin

## Summary

If a JAR file is signed with old, weak hash algorithms, the class files within it can be modified without the change being caught. This potentially enables attackers to inject malicious code into signed code from a trusted third party.

## Vulnerability Details

**CVEID:** [CVE-2016-5542](http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5542)

**DESCRIPTION:** An unspecified vulnerability related to the Libraries component has no confidentiality impact, low integrity impact, and no availability impact.

CVSS Base Score: 3.1

CVSS Temporal Score: See [https://exchange.xforce.ibmcloud.com/vulnerabilities/118073](https://exchange.xforce.ibmcloud.com/vulnerabilities/118073) for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N)

## Affected Products and Versions

All versions of Rational Functional Tester from 8.3.0 through 8.6.0.9

## Remediation/Fixes

**Vendor Fixes:**

|     |     |     |     |
| --- | --- | --- | --- |
| **Product** | **Version** | **APAR** | **Remediation/First fix** |
| RFT | 8.3.0 - 8.3.0.x | None | Download the IBM SDK, Java Technology Edition, Version 7 Service Refresh 9 [iFix](https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Rational&product=ibm/Rational/Rational+Functional+Tester&release=8.3.0.1&platform=All&function=fixId&fixids=Rational-RFT-Java7SR9FP60-ifix&includeSupersedes=0) from the Fix Central and apply it.
| RFT | 8.5.0 - 8.5.0.x | None | Download the IBM SDK, Java Technology Edition, Version 7 Service Refresh 9 [iFix](https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Rational&product=ibm/Rational/Rational+Functional+Tester&release=8.3.0.1&platform=All&function=fixId&fixids=Rational-RFT-Java7SR9FP60-ifix&includeSupersedes=0) from the Fix Central and apply it.
| RFT | 8.5.1 - 8.5.1.x | None | Download the IBM SDK, Java Technology Edition, Version 7 Service Refresh 9 [iFix](https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Rational&product=ibm/Rational/Rational+Functional+Tester&release=8.3.0.1&platform=All&function=fixId&fixids=Rational-RFT-Java7SR9FP60-ifix&includeSupersedes=0) from the Fix Central and apply it.
| RFT | 8.6.0 - 8.6.0.6 | None | Download the IBM SDK, Java Technology Edition, Version 7 Service Refresh 9 [iFix](https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Rational&product=ibm/Rational/Rational+Functional+Tester&release=8.3.0.1&platform=All&function=fixId&fixids=Rational-RFT-Java7SR9FP60-ifix&includeSupersedes=0) from the Fix Central and apply it.
| RFT | 8.6.0.7 - 8.6.0.9 | None | Download the IBM SDK, Java Technology Edition, Version 8 Service Refresh 3 Fix Pack 20 [iFix](https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~Rational&product=ibm/Rational/Rational+Functional+Tester&release=8.6.0.7&platform=All&function=fixId&fixids=Rational-RFT-Java8SR3FP20-ifix&includeSupersedes=0) or any subsequent release as applicable, and apply it.

**Note**:

- You must verify that applying this fix does not cause any compatibility issues.
- For information about how to install iFixes, see [Installing packages](http://www-01.ibm.com/support/knowledgecenter/SSDV2W_1.4.0/com.ibm.cic.agent.ui.doc/topics/t_installing_packages.html?lang=en).

## Workarounds and Mitigations

None

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### References

[Complete CVSS v2 Guide](http://www.first.org/cvss/v2/guide "Link resides outside of ibm.com")  
[On-line Calculator v2](http://nvd.nist.gov/CVSS-v2-Calculator "Link resides outside of ibm.com")  
[Complete CVSS v3 Guide](http://www.first.org/cvss/user-guide "Link resides outside of ibm.com")  
[On-line Calculator v3](http://www.first.org/cvss/calculator/3.0 "Link resides outside of ibm.com")

## Change History

30 January 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

Review the [IBM security bulletin disclaimer and definitions](/content/support/pages/node/6610583#disclaimer/index.html) regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.