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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.3313
           Cisco DNA Center Information Disclosure Vulnerability
                              7 October 2021

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

Product:           Cisco DNA Center
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-34782  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnac-infodisc-KyC6YncS

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Cisco DNA Center Information Disclosure Vulnerability

Priority:        Medium
Advisory ID:     cisco-sa-dnac-infodisc-KyC6YncS
First Published: 2021 October 6 16:00 GMT
Version 1.0:     Final
Workarounds:     No workarounds available
Cisco Bug IDs:   CSCvy18258
CVE Names:       CVE-2021-34782
CWEs:            CWE-202

Summary

  o A vulnerability in the API endpoints for Cisco DNA Center could allow an
    authenticated, remote attacker to gain access to sensitive information that
    should be restricted. The attacker must have valid device credentials.

    This vulnerability is due to improper access controls on API endpoints. An
    attacker could exploit the vulnerability by sending a specific API request
    to an affected application. A successful exploit could allow the attacker
    to obtain sensitive information about other users who are configured with
    higher privileges on the application.

    Cisco has released software updates that address this vulnerability. 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-dnac-infodisc-KyC6YncS

Affected Products

  o Vulnerable Products

    At the time of publication, this vulnerability affected Cisco DNA Center.

    For information about which Cisco software releases were vulnerable at the
    time of publication, see the Fixed Software section of this advisory. 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 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

    At the time of publication, the release information in the following table
    (s) was accurate. See the Details section in the bug ID(s) at the top of
    this advisory for the most complete and current information.

    The left column lists Cisco software releases, and the right column
    indicates whether a release was affected by the vulnerability described in
    this advisory and which release included the fix for this vulnerability.

    Cisco DNA Center      First Fixed Release for this Vulnerability
    2.2.2 and earlier     2.2.2.5 (Oct 2021)
    2.2.3                 2.2.3.3

    The Cisco Product Security Incident Response Team (PSIRT) validates only
    the affected and fixed release information that is documented in this
    advisory.

Exploitation and Public Announcements

  o The Cisco 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 the resolution of a Cisco TAC support
    case.

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-dnac-infodisc-KyC6YncS

Revision History

  o +----------+---------------------------+----------+--------+--------------+
    | Version  |        Description        | Section  | Status |     Date     |
    +----------+---------------------------+----------+--------+--------------+
    | 1.0      | Initial public release.   | -        | Final  | 2021-OCT-06  |
    +----------+---------------------------+----------+--------+--------------+

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