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AUSCERT External Security Bulletin Redistribution
ESB-2021.1005
Advisory (icsa-21-082-03) GE Reason DR60
24 March 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: GE Reason DR60
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Root Compromise -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-27454 CVE-2021-27440 CVE-2021-27438
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-21-082-03
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ICS Advisory (ICSA-21-082-03)
GE Reason DR60
Original release date: March 23, 2021
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 9.8
o ATTENTION: Exploitable remotely/low skill level to exploit
o Vendor: GE
o Equipment: Reason DR60
o Vulnerabilities: Hard-coded Password, Code Injection, Execution with
Unnecessary Privileges
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to
take full control of the digital fault recorder (DFR), remotely execute code,
or escalate privileges.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
GE reports these vulnerabilities affect the following Reason DR60 digital fault
recorder products:
o DR60: All firmware versions prior to 02A04.1
3.2 VULNERABILITY OVERVIEW
3.2.1 USE OF HARD-CODED PASSWORD CWE-259
The software contains a hard-coded password it uses for its own inbound
authentication or for outbound communication to external components.
CVE-2021-27440 has been assigned to this vulnerability. A CVSS v3 base score of
9.8 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:H/I:H/A:H ).
3.2.2 CODE INJECTION CWE-94
The software constructs all or part of a code segment using externally
influenced input from an upstream component, but it does not neutralize or
incorrectly neutralizes special elements that could modify the syntax or
behavior of the intended code segment.
CVE-2021-27438 has been assigned to this vulnerability. A CVSS v3 base score of
8.8 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:L/UI:N/S:U/
C:H/I:H/A:H ).
3.2.3 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250
The software performs an operation at a privilege level higher than the minimum
level required, which creates new weaknesses or amplifies the consequences of
other weaknesses.
CVE-2021-27454 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:L/UI:N/S:U/
C:H/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Communications, Critical Manufacturing,
Energy, Healthcare and Public Health, Transportation Systems, Water and
Wastewater Systems
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Thales OT Security Team reported these vulnerabilities to GE.
4. MITIGATIONS
GE recommends DR60 users upgrade to firmware v02A04.1 or higher to correct
these vulnerabilities.
Instructions on how to upgrade the DR60 firmware and verify its installation
are available in the product user's manual.
See GE publication number: GES-2021-002 for more information.
GE recommends DR60 devices be protected using network defense-in-depth
practices. This includes, but is not limited to, placing DR60 devices inside
the control system network security perimeter, and having access controls,
monitoring (such as an Intrusion Detection System), and other mitigating
technologies in place. Many electric utilities have deployed cyber security
solutions in accordance with the NERC-CIP implementation requirements. Please
refer to the product secure deployment guide.
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 VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize 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.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 us-cert.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.
CISA also recommends users take the following measures to protect themselves
from social engineering attacks:
o Do not click web links or open unsolicited attachments in email messages.
o Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
o Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
No known public exploits specifically target these vulnerabilities.
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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