Operating System:

[Cisco]

Published:

07 February 2019

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0352
           Cisco Meeting Server Denial of Service Vulnerability
                              7 February 2019

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

Product:           Cisco Meeting Server
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-1678  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190206-cms-dos

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Cisco Security Advisory

Cisco Meeting Server Denial of Service Vulnerability


Advisory ID:	  cisco-sa-20190206-cms-dos
First Published:  2019 February 6 16:00 GMT
Version 1.0:	  Final
Workarounds:	  No workarounds available
Cisco Bug IDs:    CSCvn16684
                  CVE-2019-1678
                   CWE-20
CVSS Score:        Base 4.3
CVSS:              3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:X
                   CVE-2019-1678
                   CWE-20

Summary

  o
    A vulnerability in Cisco Meeting Server could allow an authenticated,
    remote attacker to cause a partial denial of service (DoS) to Cisco
    Meetings application users who are paired with a Session Initiation
    Protocol (SIP) endpoint.

    The vulnerability is due to improper validation of coSpaces configuration
    parameters. An attacker could exploit this vulnerability by inserting
    crafted strings in specific coSpace parameters. An exploit could allow the
    attacker to prevent clients from joining a conference call in the affected
    coSpace.

    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-20190206-cms-dos

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco Meeting Server. 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

  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
    providers.

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.

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