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AUSCERT External Security Bulletin Redistribution
ESB-2020.2719
Advisory (icsa-20-219-03) Geutebruck G-Cam and G-Code
7 August 2020
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AusCERT Security Bulletin Summary
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Product: G-Cam and G-Code
Publisher: US-CERT
Operating System: Network Appliance
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-16205
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-20-219-03
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ICS Advisory (ICSA-20-219-03)
Geutebruck G-Cam and G-Code
Original release date: August 06, 2020
Legal Notice
All information products included in https://us-cert.gov/ics are provided"as
is" for informational purposes only. The Department of Homeland Security (DHS)
does not provide any warranties of any kind regarding any information contained
within. DHS does not endorse any commercial product or service, referenced in
this product or otherwise. Further dissemination of this product is governed by
the Traffic Light Protocol (TLP) marking in the header. For more information
about TLP, see https://www.us-cert.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 7.2
o ATTENTION: Exploitable remotely/low skill level to exploit/public exploits
are available
o Vendor: Geutebruck
o Equipment: G-Cam and G-Code
o Vulnerability: OS Command Injection
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow remote code execution
as root.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Geutebruck reports the vulnerability affects firmware Versions 1.12.0.25 and
prior as well as the limited Versions 1.12.13.2 and 1.12.14.5 of the following
Encoder and E2 Series Camera models:
o G-Code:
EEC-2xxx
o G-Cam:
EBC-21xx
EFD-22xx
ETHC-22xx
EWPC-22xx
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS
COMMAND INJECTION') CWE-78
Using a specially crafted URL command, a remote authenticated user can execute
commands as root.
CVE-2020-16205 has been assigned to this vulnerability. A CVSS v3 base score of
7.2 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:H/UI:N/S:U/
C:H/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Energy, Financial
Services, Government Facilities, Healthcare and Public Health,
Transportation Systems
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Germany
3.4 RESEARCHER
Davy Douhine of RandoriSec reported this vulnerability to CISA.
4. MITIGATIONS
Geutebruck recommends users update to firmware Version 1.12.0.27
The link for the download area on the Geutebruck website " latest firmware " is
the same as for the advisory " security advisory " (Login required).
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o When remote access is required, use secure methods, such as Virtual Private
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should
be updated to the most current version available. Also recognize that VPN
is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices
on the ICS webpage on us-cert.gov . Several recommended practices are available
for reading and download, including Improving Industrial Control Systems
Cybersecurity with Defense-in-Depth Strategies .
Additional mitigation guidance and recommended practices are publicly available
on the ICS webpage on us-cert.gov in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to CISA for tracking
and correlation against other incidents.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870
CISA continuously strives to improve its products and services. You can help by
choosing one of the links below to provide feedback about this product.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
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