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AUSCERT External Security Bulletin Redistribution
Cisco TelePresence Collaboration Endpoint and RoomOS
Software Command Injection Vulnerability
18 June 2020
AusCERT Security Bulletin Summary
Product: Cisco TelePresence Collaboration Endpoint
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Existing Account
CVE Names: CVE-2020-3336
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Cisco TelePresence Collaboration Endpoint and RoomOS Software Command Injection
Advisory ID: cisco-sa-tp-cmd-inj-7ZpWhvZb
First Published: 2020 June 17 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvt94558
o A vulnerability in the software upgrade process of Cisco TelePresence
Collaboration Endpoint Software and Cisco RoomOS Software could allow an
authenticated, remote attacker to modify the filesystem to cause a denial
of service (DoS) or gain privileged access to the root filesystem.
The vulnerability is due to insufficient input validation. An attacker with
administrative privileges could exploit this vulnerability by sending
requests with malformed parameters to the system using the console, Secure
Shell (SSH), or web API. A successful exploit could allow the attacker to
modify the device configuration or cause a DoS.
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:
o Vulnerable Products
This vulnerability affects vulnerable releases of Cisco TelePresence
Collaboration Endpoint Software and RoomOS Software release earlier than
May Drop 2 2020.
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 this vulnerability.
Cisco has confirmed that this vulnerability does not affect the following
Cisco Telepresence Codec (TC) Software
Cisco Telepresence Collaboration Endpoint Release 8.x
o There are no workarounds that address this vulnerability.
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/
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 and Alerts 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
Cisco Telepresence Collaboration Endpoint Software
Customers are advised to upgrade to an appropriate fixed software release
as indicated in the following table:
Telepresence Collaboration Endpoint First Fixed Release for This
Software Release Vulnerability
9.8.0 and earlier Migrate to fixed release.
Cisco RoomOS Software
Cisco has addressed this vulnerability in Cisco RoomOS Software Release May
Drop 2 2020, which is cloud based. No user action is required. Customers
can determine the current remediation status or software version by using
the Help function in the service GUI.
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.
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.
| Version | Description | Section | Status | Date |
| 1.0 | Initial public release. | - | Final | 2020-JUN-17 |
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