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             AUSCERT External Security Bulletin Redistribution

        Cisco Prime Infrastructure and Evolved Programmable Network
               Manager Remote Code Execution Vulnerabilities
                                16 May 2019


        AusCERT Security Bulletin Summary

Product:           Cisco Prime Infrastructure
                   Cisco Evolved Programmable Network Manager
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Increased Privileges            -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-1823 CVE-2019-1822 CVE-2019-1821

Original Bulletin: 

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

Cisco Prime Infrastructure and Evolved Programmable Network Manager Remote Code
Execution Vulnerabilities

Priority:        Critical

Advisory ID:     cisco-sa-20190515-pi-rce

First Published: 2019 May 15 16:00 GMT

Last Updated:    2019 May 15 22:58 GMT

Version 1.1:     Final

Workarounds:     No workarounds available



CVSS Score:


  o Multiple vulnerabilities in the web-based management interface of Cisco
    Prime Infrastructure (PI) and Cisco Evolved Programmable Network (EPN)
    Manager could allow a remote attacker to gain the ability to execute
    arbitrary code with elevated privileges on the underlying operating system.

    One of these issues, CVE-2019-1821, can be exploited by an unauthenticated
    attacker that has network access to the affected administrative interface.

    The second and third issues, CVE-2019-1822 and CVE-2019-1823, require that
    an attacker have valid credentials to authenticate to the impacted
    administrative interface.

    These vulnerabilities exist because the software improperly validates
    user-supplied input. An attacker could exploit these vulnerabilities by
    uploading a malicious file to the administrative web interface. A
    successful exploit could allow the attacker to execute code with root 
    -level privileges on the underlying operating system.

    Cisco has released software updates that address these vulnerabilities.
    There are no workarounds that address these vulnerabilities.

    This advisory is available at the following link:

Affected Products

  o Vulnerable Products

    These vulnerabilities affect Cisco PI Software Releases prior to 3.4.1,
    3.5, and 3.6, and EPN Manager Releases prior to 3.0.1.

    Determining the PI Software Release

    The administrator can view the PI software release in three ways:

       The administrator can issue the show version command from the console
        CLI. The following output is from an affected application that is
        running PI Software Release 3.3.0:

            piconsole# show version
            Cisco Application Deployment Engine OS Release: 3.1
            ADE-OS Build Version:
            ADE-OS System Architecture: x86_64

            Copyright (c) 2009-2017 by Cisco Systems, Inc.
            All rights reserved.
            Hostname: XXXXXXXXX

            Version information of installed applications

            Cisco Prime Infrastructure
            Version : 3.3.0
            Build :

       The administrator can view the PI release and maintenance release
        updates by connecting to the web interface using the http(s)://
        <system-ip> access URL. The PI software release is displayed on the
        welcome screen. The following is an example of text that is displayed
        in the pop-up window for PI Software Release 3.3:

            Cisco Prime Infrastructure
                   Version 3.3
               View Installed Update

       The administrator can also view the PI release and maintenance releases
        by logging in to the web interface using the http(s)://<system-ip> 
        access URL and choosing Gear > About Prime Infrastructure.

    Determining the EPN Manager Software Release

    The administrator can log in to the web GUI to view the software updates in
    three ways:

       Click the View Installed Updates link on the login page.
       Access the View Installed Updates link from the About Cisco EPN Manager

         1. Click the settings icon at the top right of the page.
         2. Click About Cisco EPN Manager .
         3. Click View Installed Updates .

       Choose Administration > Licenses and Software Updates > Software Update
        in the EPN Manager. (This method provides the most detail.)

    The Software Update page displays two tabs:

       Installed Updates: Updates that Cisco EPN Manager is currently using.
       Uploaded Update Files: Update files that have been uploaded to the
        server (including those that are not being used). The Corresponding
        Updates field lists any prerequisite updates that were also uploaded.

    Products Confirmed Not Vulnerable

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


  o There are no workarounds that address these vulnerabilities.

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:

    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

    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:

    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

    Fixed Releases

    These vulnerabilities are fixed in Cisco PI Software Releases 3.4.1, 3.5,
    and 3.6, and EPN Manager Release 3.0.1.

    Note: Customers running releases of Cisco PI 3.4 must apply the Security
    Update to the latest maintenance release, PI 3.4.1, to patch these
    vulnerabilities for PI 3.4.

    Note: Customers running releases of Cisco PI 3.5 must apply the Security
    Update to PI 3.5.

    Customers can download the Cisco PI Software from the Software Center on
    Cisco.com by doing the following:

       Click Browse all .
       Choose Cloud and Systems Management > Routing and Switching Management
        > Network Management Solutions > Prime Infrastructure .

    Customers can download the Cisco EPN Manager Software from the Software
    Center on Cisco.com by doing the following:

       Click Browse all .
       Choose Cloud and Systems Management > Routing and Switching Management
        > Evolved Programmable Network Manager .

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 vulnerabilities that are
    described in this advisory.


  o Cisco would like to thank Steven Seeley (mr_me) of Source Incite for
    reporting these vulnerabilities.

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/

Revision History

  o +---------+------------------------------+---------+--------+-------------+
    | Version |         Description          | Section | Status |    Date     |
    | 1.1     | Updated summary to clarify   | Summary | Final  | 2019-May-16 |
    |         | CVSS score change.           |         |        |             |
    | 1.0     | Initial public release.      | -       | Final  | 2019-May-15 |

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

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