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             AUSCERT External Security Bulletin Redistribution

        Cisco SD-WAN Software Privilege Escalation Vulnerabilities
                             30 September 2022


        AusCERT Security Bulletin Summary

Product:           SD-WAN vBond Orchestrator Software
                   SD-WAN vEdge Cloud Routers
                   SD-WAN vEdge Routers
                   SD-WAN vManage Software
                   SD-WAN vSmart Controller Software
Publisher:         Cisco Systems
Operating System:  Cisco
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-20818 CVE-2022-20775 

Original Bulletin: 

Revision History:  September 30 2022: Vendor updated fixed release
                   September 29 2022: Initial Release

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

Cisco SD-WAN Software Privilege Escalation Vulnerabilities

Priority:        High
Advisory ID:     cisco-sa-sd-wan-priv-E6e8tEdF
First Published: 2022 September 28 16:00 GMT
Last Updated:    2022 September 29 21:59 GMT
Version 1.1:     Final
Workarounds:     No workarounds available
Cisco Bug IDs:   CSCwa52793 CSCwb54198
CVE Names:       CVE-2022-20775 CVE-2022-20818
CWEs:            CWE-25 CWE-282


  o Multiple vulnerabilities in the CLI of Cisco SD-WAN Software could allow an
    authenticated, local attacker to gain elevated privileges.

    These vulnerabilities are due to improper access controls on commands
    within the application CLI. An attacker could exploit these vulnerabilities
    by running a malicious command on the application CLI. A successful exploit
    could allow the attacker to execute arbitrary commands as the root user.

    Cisco has released software updates that address these vulnerabilities.
    There are no workarounds that address these vulnerabilities.

    This advisory is available at the following link:

Affected Products

  o Vulnerable Products

    These vulnerabilities affect the following Cisco products if they are
    running a vulnerable release of Cisco SD-WAN Software:

       SD-WAN vBond Orchestrator Software
       SD-WAN vEdge Cloud Routers
       SD-WAN vEdge Routers
       SD-WAN vManage Software
       SD-WAN vSmart Controller Software

    For information about which Cisco software releases are vulnerable, see the
    Fixed Software section of this advisory.

    Products Confirmed Not Vulnerable

    Only products listed in the Vulnerable Products section of this advisory
    are known to be affected by these vulnerabilities.

    Cisco has confirmed that this vulnerability does not affect Cisco IOS XE
    SD-WAN Software.


  o There are no workarounds that address these vulnerabilities.

Fixed Software

  o Cisco has released free software updates that address the vulnerabilities
    described in this advisory. Customers with service contracts that entitle
    them to regular software updates should obtain security fixes through their
    usual update channels.

    Customers may only install and expect support for software versions and
    feature sets for which they have purchased a license. By installing,
    downloading, accessing, or otherwise using such software upgrades,
    customers agree to follow the terms of the Cisco software license:

    Additionally, customers may only download software for which they have a
    valid license, procured from Cisco directly, or through a Cisco authorized
    reseller or partner. In most cases this will be a maintenance upgrade to
    software that was previously purchased. Free security software updates do
    not entitle customers to a new software license, additional software
    feature sets, or major revision upgrades.

    The Cisco Support and Downloads page on Cisco.com provides information
    about licensing and downloads. This page can also display customer device
    support coverage for customers who use the My Devices tool.

    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

    Customers Without Service Contracts

    Customers who purchase directly from Cisco but do not hold a Cisco service
    contract and customers who make purchases through third-party vendors but
    are unsuccessful in obtaining fixed software through their point of sale
    should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c

    Customers should have the product serial number available and be prepared
    to provide the URL of this advisory as evidence of entitlement to a free

    Fixed Releases

    In the following table(s), the left column lists Cisco software releases.
    The right column indicates whether a release is affected by the
    vulnerabilities that are described in this advisory and the first release
    that includes the fix for these vulnerabilities. Customers are advised to
    upgrade to an appropriate fixed software release as indicated in this


    Cisco SD-WAN Software Release          First Fixed Release
    18.4 and earlier                       Migrate to a fixed release.
    19.2                                   Migrate to a fixed release.
    20.3                                   Migrate to a fixed release.
    20.6                                   20.6.3
    20.7                                   20.7.2
    20.8                                   20.8.1
    20.9                                   Not affected.


    Cisco SD-WAN Software Release          First Fixed Release
    18.4 and earlier                       Migrate to a fixed release.
    19.2                                   Migrate to a fixed release.
    20.3                                   Migrate to a fixed release.
    20.6                                   Migrate to a fixed release.
    20.7                                   Migrate to a fixed release.
    20.8                                   Migrate to a fixed release.
    20.9                                   Not affected.

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

Exploitation and Public Announcements

  o The Cisco PSIRT is not aware of any public announcements or malicious use
    of the vulnerabilities that are described in this advisory.


  o Cisco would like to thank Cyrille Chatras of Orange Group and Orange
    CERT-CC for reporting CVE-2022-20775.

    Cisco would like to thank Matei "Mal" Badanoiu of Deloitte Romania for
    reporting CVE-2022-20818.

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.

Related to This Advisory



  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-priv-E6e8tEdF

Revision History

  o +---------+-----------------------------+----------+--------+-------------+
    | Version |         Description         | Section  | Status |    Date     |
    |         | Updated first fixed release | Fixed    |        |             |
    | 1.1     | from 20.6.4 to 20.6.3 for   | Software | Final  | 2022-SEP-29 |
    |         | CVE-2022-20775.             |          |        |             |
    | 1.0     | Initial public release.     | -        | Final  | 2022-SEP-28 |

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