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AUSCERT External Security Bulletin Redistribution
ESB-2022.4035
Advisory (icsa-22-223-04) Emerson ROC800, ROC800L and DL8000
12 August 2022
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AusCERT Security Bulletin Summary
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Product: Emerson ROC800
Emerson ROC800L
Emerson DL8000
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Mitigation
CVE Names: CVE-2022-30264
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-22-223-04
Comment: CVSS (Max): 6.3 CVE-2022-30264 (CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: ICS-CERT
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
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ICS Advisory (ICSA-22-223-04)
Emerson ROC800, ROC800L and DL8000
Original release date: August 11, 2022
Legal Notice
All information products included in https://us-cert.cisa.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://us-cert.cisa.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 6.3
o ATTENTION: High attack complexity
o Vendor: Emerson
o Equipment: ROC800, ROC800L and DL8000
o Vulnerability: Insufficient Verification of Data Authenticity
CISA is aware of a public report, known as "OT:ICEFALL" that details
vulnerabilities found in multiple operational technology (OT) vendors. CISA is
issuing this advisory to provide notice of the reported vulnerabilities and
identify baseline mitigations for reducing risks to these and other
cybersecurity attacks.
2. RISK EVALUATION
Successful exploitation of this vulnerability could cause file manipulation.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of ROC800, a remote automation controller, are affected:
o ROC800: All versions
o ROC800L: All versions
o DL8000: All versions
3.2 VULNERABILITY OVERVIEW
3.2.1 INSUFFICIENT VERIFICATION OF DATA AUTHENTICITY CWE-345
The affected product uses the ROC protocol for communications, which could
allow an attacker to read, write and delete file or folder operations.
CVE-2022-30264 has been assigned to this vulnerability. A CVSS v3 base score of
6.3 has been calculated; the CVSS vector string is ( AV:L/AC:H/PR:H/UI:R/S:U/
C:H/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Multiple Sectors
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Daniel dos Santos and Jos Wetzels from Forescout Technologies reported this
vulnerability to CISA.
4. MITIGATIONS
Emerson recommends users follow the guidance given in the ROC800-Series Remote
Operations Controller Instruction Manual under section 1.11 Secure Gateway
D301766X012
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 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 VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize VPN is only
as secure as its 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 cisa.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 cisa.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.
No known public exploits specifically target this vulnerability. This
vulnerability is not exploitable remotely.
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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