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Published:

22 July 2021

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.2480
    Cisco SD-WAN vManage Software Information Disclosure Vulnerability
                               22 July 2021

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

Product:           Cisco SD-WAN vManage Software
Publisher:         Cisco Systems
Impact/Access:     Access Confidential Data -- Existing Account
                   Reduced Security         -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-34700  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-vmanage-infdis-LggOP9sE

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

Cisco SD-WAN vManage Software Information Disclosure Vulnerability

Priority:        Medium
Advisory ID:     cisco-sa-sdwan-vmanage-infdis-LggOP9sE
First Published: 2021 July 21 16:00 GMT
Version 1.0:     Final
Workarounds:     No workarounds available
Cisco Bug IDs:   CSCvw53695
CVE Names:       CVE-2021-34700
CWEs:            CWE-522

Summary

  o A vulnerability in the CLI interface of Cisco SD-WAN vManage Software could
    allow an authenticated, local attacker to read arbitrary files on the
    underlying file system of an affected system.

    This vulnerability exists because access to sensitive information on an
    affected system is not sufficiently controlled. An attacker could exploit
    this vulnerability by gaining unauthorized access to sensitive information
    on an affected system. A successful exploit could allow the attacker to
    create forged authentication requests and gain unauthorized access to the
    web UI of an affected system.

    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-sdwan-vmanage-infdis-LggOP9sE

Affected Products

  o Vulnerable Products

    At the time of publication, this vulnerability affected the following Cisco
    SD-WAN vManage Software releases:

       Earlier than 20.4.2
       Earlier than 20.5.1

    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 following Cisco SD-WAN vManage Software
    releases contained the fix for this vulnerability:

       20.4.2 and later
       20.5.1 and later

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

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 by James
    Spadaro of the Cisco Advanced Security Initiatives Group (ASIG).

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-sdwan-vmanage-infdis-LggOP9sE

Revision History

  o +----------+---------------------------+----------+--------+--------------+
    | Version  |        Description        | Section  | Status |     Date     |
    +----------+---------------------------+----------+--------+--------------+
    | 1.0      | Initial public release.   | -        | Final  | 2021-JUL-21  |
    +----------+---------------------------+----------+--------+--------------+

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