-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.2681
     Cisco Small Business Series Switches Open Redirect Vulnerability
                               18 July 2019

===========================================================================

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

Product:           Cisco Small Business Series Switches
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-1943  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-sbss-redirect

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

Cisco Small Business Series Switches Open Redirect Vulnerability

Priority:        Medium

Advisory ID:     cisco-sa-20190717-sbss-redirect

First Published: 2019 July 17 16:00 GMT

Version 1.0:     Final

Workarounds:     No workarounds availableCisco Bug IDs:   CSCvp23218

CVE-2019-1943    

CWE-601

CVSS Score:
4.7  AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X

Summary

  o A vulnerability in the web interface of Cisco Small Business 200, 300, and
    500 Series Switches software could allow an unauthenticated, remote
    attacker to redirect a user to a malicious web page.

    The vulnerability is due to improper input validation of the parameters of
    an HTTP request. An attacker could exploit this vulnerability by
    intercepting a user's HTTP request and modifying it into a request that
    causes the web interface to redirect the user to a specific malicious URL.
    This type of vulnerability is known as an open redirect attack and is used
    in phishing attacks that get users to unknowingly visit malicious sites.

    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-20190717-sbss-redirect

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco 200 Series Smart Switches, Cisco 300
    Series Managed Switches, and Cisco 500 Series Stackable Managed Switches.

    See the Details section in the bug ID(s) at the top of this advisory for
    the most complete and current information.

    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 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.

    Fixed Releases

    For information about fixed software releases, see the Details section in
    the bug ID(s) at the top of this advisory.

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 Ramikan of CT Pentest 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.

URL

  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-20190717-sbss-redirect

Revision History

  o +---------+---------------------------+---------+--------+---------------+
    | Version |        Description        | Section | Status |     Date      |
    +---------+---------------------------+---------+--------+---------------+
    | 1.0     | Initial public release.   | -       | Final  | 2019-July-17  |
    +---------+---------------------------+---------+--------+---------------+

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

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=0UpJ
-----END PGP SIGNATURE-----