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AUSCERT External Security Bulletin Redistribution
ESB-2022.4824.2
Cisco SD-WAN Software Privilege Escalation Vulnerabilities
30 September 2022
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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:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-priv-E6e8tEdF
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
Summary
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:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-priv-E6e8tEdF
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.
Workarounds
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:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html
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
providers.
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
/en/us/support/web/tsd-cisco-worldwide-contacts.html
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
upgrade.
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
section.
CVE-2022-20775
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.
CVE-2022-20818
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
advisory.
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.
Source
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
URL
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 |
+---------+-----------------------------+----------+--------+-------------+
- --------------------------END INCLUDED TEXT--------------------
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