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             AUSCERT External Security Bulletin Redistribution

          Cisco Application Policy Infrastructure Controller IPv6
                     Link-Local Address Vulnerability
                               13 March 2019


        AusCERT Security Bulletin Summary

Product:           Cisco Application Policy Infrastructure Controller (APIC)
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-1690  

Original Bulletin: 

Revision History:  March 13 2019: Corrected external researcher name
                   March  7 2019: Initial Release

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Cisco Application Policy Infrastructure Controller IPv6 Link-Local Address

Priority:        Medium

Advisory ID:     cisco-sa-20190306-apic-ipv6

First Published: 2019 March 6 16:00 GMT

Last Updated:    2019 March 12 19:05 GMT

Version 1.1:     Final

Workarounds:     No workarounds available
Cisco Bug IDs:   CSCvn09855



CVSS Score:


  o A vulnerability in the management interface of Cisco Application Policy
    Infrastructure Controller (APIC) software could allow an unauthenticated,
    adjacent attacker to gain unauthorized access on an affected device.

    The vulnerability is due to a lack of proper access control mechanisms for
    IPv6 link-local connectivity imposed on the management interface of an
    affected device. An attacker on the same physical network could exploit
    this vulnerability by attempting to connect to the IPv6 link-local address
    on the affected device. A successful exploit could allow the attacker to
    bypass default access control restrictions on an affected device.

    There are no workarounds that address this vulnerability.

    This advisory is available at the following link:

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco Application Policy Infrastructure
    Controller. For information about affected software releases, consult the
    Cisco bug ID(s) at the top of this advisory.

    Products Confirmed Not Vulnerable

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

    Cisco has determined that this vulnerability does not affect the following
    Cisco products:

       Firepower 2100 Series Firewalls
       Firepower 4100 Series Next-Generation Firewalls
       Firepower 9300 Security Appliance
       MDS 9000 Series Multilayer Director Switches
       Nexus 1000V Switch for Microsoft Hyper-V
       Nexus 1000V Switch for VMware vSphere
       Nexus 2000 Series Fabric Extenders
       Nexus 3000 Series Switches
       Nexus 3500 Platform Switches
       Nexus 3600 Platform Switches
       Nexus 5000 Series Switches
       Nexus 5500 Platform Switches
       Nexus 5600 Platform Switches
       Nexus 7000 Series Switches
       Nexus 7700 Series Switches
       Nexus 9000 Series Switches in standalone NX-OS mode
       Nexus 9500 R-Series Line Cards and Fabric Modules
       UCS 6200 Series Fabric Interconnects
       UCS 6300 Series Fabric Interconnects
       UCS 6400 Series Fabric Interconnects


  o There are no workarounds that address this vulnerability.

Fixed Software

  o For information about fixed software releases , consult the Cisco bug ID(s)
    at the top of this advisory.

    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

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.


  o Cisco would like to thank Octav Opaschi with Detack GmbH for reporting this

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.


  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-apic-ipv6

Revision History

  o +---------+----------------------------+---------+--------+---------------+
    | Version |        Description         | Section | Status |     Date      |
    | 1.1     | Corrected external         | Source. | Final  | 2019-March-12 |
    |         | researcher name.           |         |        |               |
    | 1.0     | Initial public release.    | -       | Final  | 2019-March-06 |

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