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AUSCERT External Security Bulletin Redistribution
ESB-2021.3317
Cisco Intersight Virtual Appliance Command Injection Vulnerability
7 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Intersight Virtual Appliance
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-34748
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsi2-command-inject-CGyC8y2R
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Cisco Intersight Virtual Appliance Command Injection Vulnerability
Priority: High
Advisory ID: cisco-sa-ucsi2-command-inject-CGyC8y2R
First Published: 2021 October 6 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvz08353
CVE Names: CVE-2021-34748
CWEs: CWE-77
Summary
o A vulnerability in the web-based management interface of Cisco Intersight
Virtual Appliance could allow an authenticated, remote attacker to perform
a command injection attack on an affected device.
This vulnerability is due to insufficient input validation. An attacker
could exploit this vulnerability by using the web-based management
interface to execute a command using crafted input. A successful exploit
could allow the attacker to execute arbitrary commands using root -level
privileges on an affected device.
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-ucsi2-command-inject-CGyC8y2R
Affected Products
o Vulnerable Products
This vulnerability affects Cisco Intersight Virtual Appliance.
For information about which Cisco software releases are vulnerable, see the
Fixed Software section of this advisory.
To determine which release of Cisco Intersight Virtual Appliance is running
on a device, click the gear icon in the top right corner of the web-based
management interface, and then choose Settings > Software .
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect Cisco
Intersight Services for Cloud.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o Cisco has released free software updates that address the vulnerability
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
In the following table(s), the left column lists Cisco software releases.
The right column indicates whether a release is affected by the
vulnerability described in this advisory and the first release that
includes the fix for this vulnerability. Customers are advised to upgrade
to an appropriate fixed software release as indicated in this section.
Cisco Intersight Virtual Appliance Release First Fixed Release
Earlier than 1.0.9-150 Not vulnerable.
1.0.9-150 to 1.0.9-292 1.0.9-302
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 internal security testing.
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-command-inject-CGyC8y2R
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-OCT-06 |
+----------+---------------------------+----------+--------+--------------+
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