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AUSCERT External Security Bulletin Redistribution
ESB-2020.4103
Cisco DNA Spaces Connector Command Injection Vulnerability
19 November 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco DNA Spaces Connector
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3586
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dna-cmd-injection-rrAYzOwc
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Cisco DNA Spaces Connector Command Injection Vulnerability
Priority: Critical
Advisory ID: cisco-sa-dna-cmd-injection-rrAYzOwc
First Published: 2020 November 18 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvv25495
CVE Names: CVE-2020-3586
CWEs: CWE-78
Summary
o A vulnerability in the web-based management interface of Cisco DNA Spaces
Connector could allow an unauthenticated, remote attacker to execute
arbitrary commands on an affected device.
The vulnerability is due to insufficient validation of user-supplied input
in the web-based management interface. An attacker could exploit this
vulnerability by sending crafted HTTP requests to the web-based management
interface. A successful exploit could allow the attacker to execute
arbitrary commands on the underling operating system with privileges of the
web-based management application, which is running as a restricted user.
This could result in changes being made to pages served by the web-based
management application impacting the integrity or availability of the
web-based management application.
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-dna-cmd-injection-rrAYzOwc
Affected Products
o Vulnerable Products
This vulnerability affects Cisco DNA Spaces Connector software releases 2.2
and earlier.
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 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
Cisco DNA Spaces Connector releases 2.3 and later contain the fix for this
vulnerability.
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.
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-dna-cmd-injection-rrAYzOwc
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2020-NOV-18 |
+----------+---------------------------+----------+--------+--------------+
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