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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.1618
 Cisco IMC Supervisor, Cisco UCS Director, and Cisco UCS Director Express
           for Big Data Role-Based Access Control Vulnerability
                                7 May 2020

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

Product:           Cisco IMC Supervisor
                   Cisco UCS Director Express
                   Cisco UCS Director
Operating System:  Cisco
Impact/Access:     Unauthorised Access -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-3329  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-Ar6BAguz

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

Cisco IMC Supervisor, Cisco UCS Director, and Cisco UCS Director Express for
Big Data Role-Based Access Control Vulnerability

Priority:        Medium

Advisory ID:     cisco-sa-ucsd-Ar6BAguz

First Published: 2020 May 6 16:00 GMT

Version 1.0:     Final

Workarounds:     No workarounds available

Cisco Bug IDs:   CSCvs11314CSCvs35506CSCvs35510

CVE-2020-3329    

CWE-284

CVSS Score:
4.3  AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:X

Summary

  o A vulnerability in role-based access control of Cisco Integrated Management
    Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director
    Express for Big Data could allow a read-only authenticated, remote attacker
    to disable user accounts on an affected system.

    The vulnerability is due to incorrect allocation of the enable/disable
    action button under the role-based access control code on an affected
    system. An attacker could exploit this vulnerability by authenticating as a
    read-only user and then updating the roles of other users to disable them.
    A successful exploit could allow the attacker to disable users, including
    administrative users.

    Cisco has released software updates that address this vulnerability. There
    are no workarounds that address this vulnerability.

    This advisory is available at the following link:
    https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-ucsd-Ar6BAguz

Affected Products

  o Vulnerable Products

    At the time of publication, this vulnerability affected the following Cisco
    products:

       IMC Supervisor releases 1.1.0.0 and later, earlier than Release 2.2.1.3
       UCS Director releases 5.4.0.0 and later, earlier than Release 6.7.4.0
       UCS Director Express for Big Data releases 2.0.0.0 and later, earlier
        than Release 3.7.4.0

    See the Details section in the bug ID(s) at the top of this advisory for
    the most complete and current information.

    Products Confirmed Not Vulnerable

    Only products listed in the Vulnerable Products section of this advisory
    are known to be affected by this vulnerability.

Workarounds

  o There are no workarounds that address this vulnerability.

Fixed Software

  o When considering software upgrades , customers are advised to regularly
    consult the advisories for Cisco products, which are available from the
    Cisco Security Advisories and Alerts page , to determine exposure and a
    complete upgrade solution.

    In all cases, customers should ensure that the devices to be upgraded
    contain sufficient memory and confirm that current hardware and software
    configurations will continue to be supported properly by the new release.
    If the information is not clear, customers are advised to contact the Cisco
    Technical Assistance Center (TAC) or their contracted maintenance
    providers.

    Fixed Releases

    At the time of publication, the following Cisco software releases included
    the fix for this vulnerability:

       IMC Supervisor releases 2.2.1.3 and later
       UCS Director releases 6.7.4.0 and later
       UCS Director Express for Big Data releases 3.7.4.0 and later

    See the Details section in the bug ID(s) at the top of this advisory for
    the most complete and current information.

Exploitation and Public Announcements

  o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
    any public announcements or malicious use of the vulnerability that is
    described in this advisory.

Source

  o Cisco would like to thank Andrzej Chrominski of Atende S.A. for finding and
    reporting this vulnerability.

Cisco Security Vulnerability Policy

  o To learn about Cisco security vulnerability disclosure policies and
    publications, see the Security Vulnerability Policy . This document also
    contains instructions for obtaining fixed software and receiving security
    vulnerability information from Cisco.

URL

  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-ucsd-Ar6BAguz

Revision History

  o +----------+---------------------------+----------+--------+--------------+
    | Version  |        Description        | Section  | Status |     Date     |
    +----------+---------------------------+----------+--------+--------------+
    | 1.0      | Initial public release.   | -        | Final  | 2020-MAY-06  |
    +----------+---------------------------+----------+--------+--------------+

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