ESB-2018.2990 - ALERT [Cisco] Cisco Digital Network Architecture: Administrator compromise - Remote/unauthenticated 2018-10-04

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2990
          Multiple vulnerabilities have been identified in Cisco
                       Digital Network Architecture
                              4 October 2018

===========================================================================

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

Product:           Cisco Digital Network Architecture
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Administrator Compromise -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15386 CVE-2018-0448 

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-dna-auth-bypass
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-dna-unauth-access

Comment: This bulletin contains two (2) Cisco Systems security advisories.

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

Cisco Security Advisory

Cisco Digital Network Architecture Center Authentication Bypass Vulnerability

Priority:           Critical
Advisory ID:        cisco-sa-20181003-dna-auth-bypass
First Published:    2018 October 3 16:00 GMT
Version 1.0:        Final
Workarounds:        No workarounds available
Cisco Bug IDs:      CSCvi47699
CVE-2018-0448
CWE-326
CVSS Score:         Base 9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

Summary

  o A vulnerability in the identity management service of Cisco Digital Network
    Architecture (DNA) Center could allow an unauthenticated, remote attacker
    to bypass authentication and take complete control of identity management
    functions.

    The vulnerability is due to insufficient security restrictions for critical
    management functions. An attacker could exploit this vulnerability by
    sending a valid identity management request to the affected system. An
    exploit could allow the attacker to view and make unauthorized
    modifications to existing system users as well as create new 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-20181003-dna-auth-bypass

Affected Products

  o Vulnerable Products

    This vulnerability affects all releases of Cisco DNA Center Software prior
    to Release 1.1.4.

    To determine which Cisco DNA Center Software release is running on a
    system, administrators can do the following:

     1. By using a compatible, HTTPS-enabled browser, log in to the Cisco DNA
        Center GUI via HTTPS.
     2. On the DNA Center home page, click the settings (gear) icon, and then
        click About DNA Center.

    The System version field indicates which release is currently running on
    the system.

    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 Cisco has released free software updates that address the vulnerability
    described in this advisory. Customers may only install and expect support
    for software versions and feature sets for which they have purchased a
    license. By installing, downloading, accessing, or otherwise using such
    software upgrades, customers agree to follow the terms of the Cisco
    software license:
    https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

    Additionally, customers may only download software for which they have a
    valid license, procured from Cisco directly, or through a Cisco authorized
    reseller or partner. In most cases this will be a maintenance upgrade to
    software that was previously purchased. Free security software updates do
    not entitle customers to a new software license, additional software
    feature sets, or major revision upgrades.

    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.

    Customers Without Service Contracts

    Customers who purchase directly from Cisco but do not hold a Cisco service
    contract and customers who make purchases through third-party vendors but
    are unsuccessful in obtaining fixed software through their point of sale
    should obtain upgrades by contacting the Cisco TAC:
    https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

    Customers should have the product serial number available and be prepared
    to provide the URL of this advisory as evidence of entitlement to a free
    upgrade.

    Fixed Releases

    This vulnerability is fixed in Cisco DNA Center Software Release 1.1.4 and
    later.

    Cisco DNA Center is a dedicated physical appliance that is purchased from
    Cisco with the DNA Center ISO image preinstalled. System updates are
    available for installation from the Cisco cloud and are not available for
    download from the Software Center on Cisco.com. To upgrade to a fixed
    release of Cisco DNA Center Software, administrators can use the System
    Updates feature of the software. For more information, refer to the Cisco
    Digital Network Architecture Center Administrator Guide and the release
    notes for the release to be installed.

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 This vulnerability was found during internal security testing.

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-20181003-dna-auth-bypass

Revision History

    +----------+---------------------------+----------+--------+------------------+
    | Version  |        Description        | Section  | Status |       Date       |
    +----------+---------------------------+----------+--------+------------------+
    | 1.0      | Initial public release.   | --        | Final  | 2018-October-03  |
    +----------+---------------------------+----------+--------+------------------+

Legal Disclaimer

  o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
    OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
    FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
    OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
    THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

    A standalone copy or paraphrase of the text of this document that omits the
    distribution URL is an uncontrolled copy and may lack important information
    or contain factual errors. The information in this document is intended for
    end users of Cisco products.

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.

- --------------------------------------------------------------------------------
Cisco Security Advisory

Cisco Digital Network Architecture Center Unauthenticated Access Vulnerability

Priority:           Critical
Advisory ID:        cisco-sa-20181003-dna-unauth-access
First Published:    2018 October 3 16:00 GMT
Version 1.0:        Final
Workarounds:        No workarounds available
Cisco Bug IDs:      CSCvj05082, CSCvj05086
CVE-2018-15386
CWE-16
CVSS Score:         Base 9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

Summary

  o A vulnerability in Cisco Digital Network Architecture (DNA) Center could
    allow an unauthenticated, remote attacker to bypass authentication and have
    direct unauthorized access to critical management functions.

    The vulnerability is due to an insecure default configuration of the
    affected system. An attacker could exploit this vulnerability by directly
    connecting to the exposed services. An exploit could allow the attacker to
    retrieve and modify critical system files.

    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-20181003-dna-unauth-access

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco DNA Center Release 1.1.

    To determine which Cisco DNA Center Software release is running on a
    system, administrators can do the following:

     1. By using a compatible, HTTPS-enabled browser, log in to the Cisco DNA
        Center GUI via HTTPS.
     2. On the DNA Center home page, click the settings (gear) icon, and then
        click About DNA Center.

    The System version field indicates which release is currently running on
    the system.

    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 Cisco has released free software updates that address the vulnerability
    described in this advisory. Customers may only install and expect support
    for software versions and feature sets for which they have purchased a
    license. By installing, downloading, accessing, or otherwise using such
    software upgrades, customers agree to follow the terms of the Cisco
    software license:
    https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

    Additionally, customers may only download software for which they have a
    valid license, procured from Cisco directly, or through a Cisco authorized
    reseller or partner. In most cases this will be a maintenance upgrade to
    software that was previously purchased. Free security software updates do
    not entitle customers to a new software license, additional software
    feature sets, or major revision upgrades.

    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.

    Customers Without Service Contracts

    Customers who purchase directly from Cisco but do not hold a Cisco service
    contract and customers who make purchases through third-party vendors but
    are unsuccessful in obtaining fixed software through their point of sale
    should obtain upgrades by contacting the Cisco TAC:
    https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

    Customers should have the product serial number available and be prepared
    to provide the URL of this advisory as evidence of entitlement to a free
    upgrade.

    Fixed Releases

    This vulnerability is fixed in Cisco DNA Center Software Release 1.2 and
    later.

    Cisco DNA Center is a dedicated physical appliance that is purchased from
    Cisco with the DNA Center ISO image preinstalled. System updates are
    available for installation from the Cisco cloud and are not available for
    download from the Software Center on Cisco.com. To upgrade to a fixed
    release of Cisco DNA Center Software, administrators can use the System
    Updates feature of the software. For more information, refer to the Cisco
    Digital Network Architecture Center Administrator Guide and the release
    notes for the release to be installed.

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 This vulnerability was found during internal security testing.

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-20181003-dna-unauth-access

Revision History

    +----------+---------------------------+----------+--------+------------------+
    | Version  |        Description        | Section  | Status |       Date       |
    +----------+---------------------------+----------+--------+------------------+
    | 1.0      | Initial public release.   | --        | Final  | 2018-October-03  |
    +----------+---------------------------+----------+--------+------------------+

Legal Disclaimer

  o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
    OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
    FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
    OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
    THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

    A standalone copy or paraphrase of the text of this document that omits the
    distribution URL is an uncontrolled copy and may lack important information
    or contain factual errors. The information in this document is intended for
    end users of Cisco products.

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.

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