ESB-2018.0632 - [Win][UNIX/Linux] IBM Tivoli Federated Identity Manager: Unauthorised access - Existing account 2018-03-05

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.0632
 Security Bulletin: IBM Tivoli Federated Identity Manager is affected by a
          Security Assertion Markup Language (SAML)-based single
            sign-on (SSO) systems vulnerability (CVE-2018-1443)
                               5 March 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Tivoli Federated Identity Manager
Publisher:         IBM
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Unauthorised Access -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1443  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22014161

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: IBM Tivoli Federated Identity Manager is affected by
a Security Assertion Markup Language (SAML)-based single sign-on (SSO)
systems vulnerability (CVE-2018-1443 )

Document information

More support for: Tivoli Federated Identity Manager

Software version: 6.2, 6.2.1, 6.2.2

Operating system(s): Platform Independent

Reference #: 2014161

Modified date: 02 March 2018

Security Bulletin

Summary

IBM Tivoli Federated Identity Manager has addressed the following
vulnerability

Vulnerability Details


CVEID: CVE-2018-1443
DESCRIPTION: An XML parsing vulnerability affects SAML-based single sign-on
(SSO) systems. This vulnerability can allow an attacker with authenticated
access to trick SAML systems into authenticating as a different user
without knowledge of the victim users password.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/139754 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

+-----------------------------------------------+----------------+
|Affected IBM Security Access Manager Appliance |    Affected    |
|                                               |    Versions    |
+-----------------------------------------------+----------------+
|                                               |6.2             |
|IBM Tivoli Federated Identity Manager          |6.2.1           |
|                                               |6.2.2           |
+-----------------------------------------------+----------------+

Remediation/Fixes

+-----------------------------------+----------+-----------+---------------------------------+
|Product                            |VRMF      |APAR       |Remediation			     |
+-----------------------------------+----------+-----------+---------------------------------+
|IBM Tivoli Federated Identity      |6.2       |IV95733    |Open a ticket with Level 2       |
|Manager                            |6.2.1     |           |Support using your standard      |
|                                   |6.2.2     |           |method			     |
+-----------------------------------+----------+-----------+---------------------------------+


Workarounds and Mitigations

None

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

*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.

- --------------------------END INCLUDED TEXT--------------------

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