ESB-2018.2236 - [Cisco] Cisco Small Business 300 Series Managed Switches: Cross-site scripting - Existing account 2018-08-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2236
        Cisco Small Business 300 Series Managed Switches Persistent
                    Cross-Site Scripting Vulnerability
                               2 August 2018

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

Product:           Cisco Small Business 300 Series Managed Switches
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Cross-site Scripting -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0407  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180801-sb-pxss

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Cisco Security Advisory

Cisco Small Business 300 Series Managed Switches Persistent Cross-Site
Scripting Vulnerability

Medium
Advisory ID:
cisco-sa-20180801-sb-pxss
First Published:
2018 August 1 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCvi87326

CVE-2018-0407

CWE-79

CVSS Score:
Base 5.4[blue-squar]Click Icon to Copy Verbose Score
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
CVE-2018-0407

CWE-79

Summary

  o A vulnerability in the web-based management interface of Cisco Small
    Business 300 Series (Sx300) Managed Switches could allow an authenticated,
    remote attacker to conduct a persistent cross-site scripting (XSS) attack
    against a user of the web-based management interface of an affected device.

    The vulnerability is due to insufficient validation of user-supplied input
    by the web-based management interface of an affected device. An attacker
    could exploit this vulnerability by persuading a user of the interface to
    click a crafted link. A successful exploit could allow the attacker to
    execute arbitrary script code in the context of the interface or allow the
    attacker to access sensitive browser-based information.

    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-20180801-sb-pxss

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco Small Business 300 Series (Sx300) Managed
    Switches. 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 Cisco would like to thank Sven Fassbender from modzero for reporting this
    vulnerability.

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-20180801-sb-pxss

Revision History

  o
    +----------+---------------------------+----------+---------+-----------------+
    | Version  |        Description        | Section  | Status  |      Date       |
    +----------+---------------------------+----------+---------+-----------------+
    | 1.0      | Initial public release.   | --        | Final   | 2018-August-01  |
    +----------+---------------------------+----------+---------+-----------------+
Show Less

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Legal Disclaimer

  o 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

  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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