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HistoryMar 05, 2019 - 12:59 p.m.

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

2019-03-0512:59:26
www.ibm.com
15

3.4 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

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&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

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 hasSSL only selected, change it to one of the following:

  • TLS1.0

  • TLS1.1

  • TLS1.2

  • 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.

3.4 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

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