ESB-2018.2557.2 - UPDATE [Win][Virtual][RedHat] Cisco Data Center Network Manager: Create arbitrary files - Existing account 2018-09-18

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.2557.2
      Cisco Data Center Network Manager Path Traversal Vulnerability
                             18 September 2018

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

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

Product:           Cisco Data Center Network Manager
Publisher:         Cisco Systems
Operating System:  Windows Server 2012 R2
                   Red Hat Enterprise Linux Server 7
                   Virtualisation
Impact/Access:     Create Arbitrary Files   -- Existing Account
                   Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0464  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180828-dcnm-traversal

Revision History:  September 18 2018: Vendor updated advisory with patch information
                                        and clarified affected versions
                   August    29 2018: Initial Release

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

Cisco Security Advisory

Cisco Data Center Network Manager Path Traversal Vulnerability

Priority: High
Advisory ID: cisco-sa-20180828-dcnm-traversal
First Published: 2018 August 28 21:00 GMT
Last Updated: 2018 September 14 18:59 GMT
Version 1.1: Final
Workarounds: No workarounds available

Cisco Bug IDs:
CSCvj86072
CVE-2018-0464
CWE-22
 
CVSS Score:
Base 8.1
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:X/RL:X/RC:X


Summary

  * A vulnerability in Cisco Data Center Network Manager software could allow
    an authenticated, remote attacker to conduct directory traversal attacks
    and gain access to sensitive files on the targeted system.

    The vulnerability is due to improper validation of user requests within the
    management interface. An attacker could exploit this vulnerability by
    sending malicious requests containing directory traversal character
    sequences within the management interface. An exploit could allow the
    attacker to view or create arbitrary files on the targeted system.

    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-20180828-dcnm-traversal

Affected Products

  * Vulnerable Products

    The vulnerability affects Cisco Data Center Network Manager (DCNM) software
    releases 10.4(2) and prior. Software versions prior to 10.0(1) are not
    affected.

    Products Confirmed Not Vulnerable

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

Workarounds

  * There are no workarounds that address this vulnerability. However, a patch
    is available to correct the vulnerability.

Fixed Software

  * 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 was first resolved in Cisco DCNM Software Release 11.0
    (1).

    The software is available for download from the Software Center on
    Cisco.com by navigating to Products > Cloud and Systems Management > Data
    Center Infrastructure Management > Cisco Prime Data Center Network Manager
    or via direct link.

    The DCNM Special Release patch for affected versions of Cisco Prime Data
    Center Network Manager is available to correct this vulnerability.

    For RHEL (Linux DCNM install), this patch is applicable only if DCNM is
    installed at the default install location (/usr/local/cisco/dcm).

           1. Download and extract the patch file in 10.x DCNM server in any
    directory. 
           2. Run the dcnmweb_patch.sh script under the patch directory.

Exploitation and Public Announcements

  * The Cisco Product Security Incident Response Team (PSIRT) has become aware
    of a public proof-of-concept exploit but is not aware of any malicious use
    of the vulnerability that is described in this advisory.

Source

  * Cisco would like to thank Tenable, Inc. for reporting this vulnerability.

Cisco Security Vulnerability Policy

  * 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

  * https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-20180828-dcnm-traversal

Revision History

    +-----------------------------------------------------------------------------+
    | Version |       Description       |  Section  | Status  |       Date        |
    |---------+-------------------------+-----------+---------+-------------------|
    |         | Updated advisory with   |           |         |                   |
    | 1.1     | patch information and   | Fixed     | Final   | 2018-September-14 |
    |         | clarified affected      | Software. |         |                   |
    |         | versions.               |           |         |                   |
    |---------+-------------------------+-----------+---------+-------------------|
    | 1.0     | Initial public release. | ?         | Interim | 2018-August-28    |
    +-----------------------------------------------------------------------------+


Legal Disclaimer

  * 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

  * 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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