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AUSCERT External Security Bulletin Redistribution
ESB-2021.2476
Cisco Intersight Virtual Appliance IPv4 and IPv6 Forwarding Vulnerabilities
22 July 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Intersight Virtual Appliance
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1601 CVE-2021-1600
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsi2-iptaclbp-L8Dzs8m8
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Cisco Intersight Virtual Appliance IPv4 and IPv6 Forwarding Vulnerabilities
Priority: High
Advisory ID: cisco-sa-ucsi2-iptaclbp-L8Dzs8m8
First Published: 2021 July 21 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvx84462 CSCvy29625
CVE Names: CVE-2021-1600 CVE-2021-1601
CWEs: CWE-284
Summary
o Multiple vulnerabilities in Cisco Intersight Virtual Appliance could allow
an unauthenticated, adjacent attacker to access sensitive internal services
from an external interface.
These vulnerabilities are due to insufficient restrictions for IPv4 or IPv6
packets that are received on the external management interface. An attacker
could exploit these vulnerabilities by sending specific traffic to this
interface on an affected device. A successful exploit could allow the
attacker to access sensitive internal services and make configuration
changes on the affected device.
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-ucsi2-iptaclbp-L8Dzs8m8
Affected Products
o Vulnerable Products
The vulnerability with the Cisco Bug ID CSCvx84462 affects Cisco Intersight
Virtual Appliance releases earlier than the first fixed release for IPv4
traffic.
The vulnerability with the Cisco Bug ID CSCvy29625 affects Cisco Intersight
Virtual Appliance releases 1.0.9-184 to the first fixed release for IPv6
traffic.
Note: These vulnerabilities do not affect customers who use Cisco
Intersight Services for Cloud.
To check the release of Cisco Intersight Virtual Appliance, click the gear
icon in the top right corner of the web UI, and then choose Settings >
Software . The web UI will display the release number.
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.
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 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.
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
Cisco fixed these vulnerabilities for both IPv4 and IPv6 in Cisco
Intersight Virtual Appliance releases 1.0.9-292 and later.
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 vulnerabilities that are
described in this advisory.
Source
o These vulnerabilities were found during internal security testing by 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-ucsi2-iptaclbp-L8Dzs8m8
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-JUL-21 |
+----------+---------------------------+----------+--------+--------------+
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