ESB-2019.0085 - [Cisco] Cisco Webex Business Suite: Cross-site scripting - Remote with user interaction - 2019-01-10


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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0085
       Cisco Webex Business Suite Cross-Site Scripting Vulnerability
                              10 January 2019

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

Product:           Cisco Webex Business Suite
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Cross-site Scripting -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15461  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-webex-bs-xss

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Cisco Webex Business Suite Cross-Site Scripting Vulnerability

Importance:        Medium
Advisory ID:       cisco-sa-20190109-webex-bs-xss
First Published:   2019 January 9 16:00 GMT
Version 1.0:       Final
Workarounds:       No workarounds available
Cisco Bug IDs:     CSCvk29147
 
CVE-2018-15461
CWE-79
 
CVSS Score: Base 6.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X

Summary

  o A vulnerability in the MyWebex component of Cisco Webex Business Suite
    could allow an unauthenticated, remote attacker to conduct a cross-site
    scripting (XSS) attack.

    The vulnerability is due to insufficient validation of user-supplied input.
    An attacker could exploit this vulnerability by convincing a user to click
    a crafted URL. To exploit this vulnerability, the attacker may provide a
    link that directs a user to a malicious site and use misleading language or
    instructions to persuade the user to follow the provided link.

    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-20190109-webex-bs-xss

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco Webex Business Suite. 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.

Action Links for This Advisory

  o Understanding Cross-Site Scripting (XSS) Threat Vectors

Related to This Advisory

  o Cross-Site Scripting

URL

  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-20190109-webex-bs-xss

Revision History

  o 
    +----------+---------------------------+----------+--------+------------------+
    | Version  |        Description        | Section  | Status |       Date       |
    +----------+---------------------------+----------+--------+------------------+
    | 1.0      | Initial public release.   | --       | Final  | 2019-January-09  |
    +----------+---------------------------+----------+--------+------------------+

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