Security Bulletin: Vulnerability in SSLv3 affects WorkLight Quality Assurance (CVE-2014-3566)

Summary

SSLv3 contains a vulnerability that has been referred to as the Padding Oracle On Downgraded Legacy Encryption (POODLE) attack. SSLv3 is enabled in Worklight Quality Assurance (WQA)

Vulnerability Details

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CVE-ID: CVE-2014-3566

Description: Product could allow a remote attacker to obtain sensitive information, caused by a design error when using the SSLv3 protocol. A remote user with the ability to conduct a man-in-the-middle attack could exploit this vulnerability via a POODLE (Padding Oracle On Downgraded Legacy Encryption) attack to decrypt SSL sessions and access the plaintext of encrypted connections.

**CVSS Base Score:**4.3
CVSS Temporal Score: See _<https://exchange.xforce.ibmcloud.com/vulnerabilities/97013&gt;_ for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

Affected Products and Versions

Worklight Quality Assurance: 6.0.0 – 6.0.0.1

Remediation/Fixes

None

Workarounds and Mitigations

Disable SSLv3 in NGINX

SSLv3 is enabled by default, and is potentially used by HTTP and Mail services in NGINX.

Procedure:

1. Locate any use of the directive ssl_protocols in your configuration that specifies the use of SSLv3, for example:

`ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;

`
2. Remove these directives, or change them to this:

`ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # don’t use SSLv3 ref: POODLE

`
3. Change the default protocol support.

Locate the http { } block in your nginx.conf configuration file and add the following line to the top of the block:

`ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # don’t use SSLv3 ref: POODLE

`
4. Locate the mail { } block in your nginx.conf configuration file (if you have one) and add the same line to the top of the block.

5. Restart nginx using the command line:

# nginx –s reload

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References

Complete CVSS v2 Guide
On-line Calculator v2

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

None

Change History

• 27 November 2014: Original copy 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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. “Affected Products and Versions” referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

[{“Product”:{“code”:“SSFRDS”,“label”:“IBM MobileFirst Quality Assurance”},“Business Unit”:{“code”:“BU053”,“label”:“Cloud & Data Platform”},“Component”:“General Information”,“Platform”:[{“code”:“PF025”,“label”:“Platform Independent”}],“Version”:“6.0;6.0.0.1”,“Edition”:“”,“Line of Business”:{“code”:“LOB45”,“label”:“Automation”}}]