ESB-2018.2998 - [Cisco] Cisco Expressway Series and Cisco TelePresence Video Communication Server: Execute arbitrary code/commands - Existing account 2018-10-04

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2998
           Cisco Expressway Series and Cisco TelePresence Video
         Communication Server Remote Code Execution Vulnerability
                              4 October 2018

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

Product:           Cisco Expressway Series
                   Cisco TelePresence Video Communication Server
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15430  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-express-vcs-rce

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Cisco Security Advisory

Cisco Expressway Series and Cisco TelePresence Video Communication Server
Remote Code Execution Vulnerability

Priority:		Medium
Advisory ID:		cisco-sa-20181003-express-vcs-rce
First Published:	2018 October 3 16:00 GMT
Version 1.0:		Final
Workarounds:		No workarounds available
Cisco Bug IDs:		CSCvi50935
CVE-2018-15430
CWE-20
CVSS Score:		Base 4.7
CVSS:			3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:X

Summary

    A vulnerability in the administrative web interface of Cisco Expressway
    Series and Cisco TelePresence Video Communication Server (VCS) could allow
    an authenticated, remote attacker to execute code with user-level
    privileges on the underlying operating system.

    The vulnerability is due to insufficient validation of the content of
    upgrade packages. An attacker could exploit this vulnerability by uploading
    a malicious archive to the Upgrade page of the administrative web
    interface. A successful exploit could allow the attacker to execute code
    with user-level privileges on the underlying operating system.

    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-express-vcs-rce

Affected Products

  * Vulnerable Products

    This vulnerability affects Cisco Expressway Series Software and Cisco
    TelePresence Video Communication Server (VCS) Software. 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.

Workarounds

  * There are no workarounds that address this vulnerability.

Fixed Software

  * 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
    providers.

Exploitation and Public Announcements

  * 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

  * Cisco would like to thank Richard Warren of NCC Group 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.

Subscribe to Cisco Security Notifications

  * Subscribe

URL

  * https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-express-vcs-rce

Revision History

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

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.

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

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