IBM Support

Security Bulletin: Vulnerability in SSLv3 affects IBM Personal Communications v6.0.x (CVE-2014-3566)

Created by Madhukar B V on
Published URL:
https://www.ibm.com/support/pages/node/254229
254229

Security Bulletin


Summary

SSLv3 contains a vulnerability that has been referred to as the Padding Oracle On Downgraded Legacy Encryption (POODLE) attack. SSLv3 is enabled in IBM Personal Communications v6.0.x

Vulnerability Details

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 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

IBM Personal Communications 6.0.11 and earlier.

Remediation/Fixes

Fix is available starting in Personal Communications 6.0.12

Clients who are on older unsupported versions of IBM Personal Communications are also advised to upgrade to IBM Personal Communications V6.0.12 or above.

Workarounds and Mitigations

IBM recommends that you review your entire environment to identify areas that enable the SSLv3 protocol and take appropriate mitigation and remediation actions. The most immediate mitigation action that can be taken is disabling SSLv3.

Please follow the instructions to ensure that IBM Personal Communications session is not configured to initiate use SSLv3 connection:

  1. Go to Communications > Configure... menu item

  2. Click Link Parameters...

  3. Click the Security Setup tab

  4. If the Security Protocol drop-down list has SSL only selected, change it to one of the following:
    • TLS1.0
    • TLS1.1
    • TLS1.2

  5. Click Apply > OK

At the same time, ensure that the host (IBM System z, IBM System i, or any other VT hosts) have SSLv3 disabled.

Important note: IBM strongly suggests that all System z customers subscribe 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. 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.

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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

* 13 February 2014: Added links to download containing solution
* 21 October 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

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:
05 March 2019

UID

swg21687560

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