Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.0156
Advisory (icsa-20-014-01) GE PACSystems RX3i
16 January 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: GE PACSystem products
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-13524
Original Bulletin:
https://www.us-cert.gov/ics/advisories/icsa-20-014-01
- --------------------------BEGIN INCLUDED TEXT--------------------
ICS Advisory (ICSA-20-014-01)
GE PACSystems RX3i
Original release date: January 14, 2020
Legal Notice
All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 7.5
o ATTENTION: Exploitable remotely/low skill level to exploit
o Vendor: GE/Emerson
o Equipment: PACSystems RX3i
o Vulnerability: Improper Input Validation
2. RISK EVALUATION
Successful exploitation of this vulnerability could cause the system to change
to halt-mode, resulting in a denial-of-service condition.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Emerson reports this vulnerability affects the following GE PACSystem products
and versions:
o CPE100: All versions prior to R9.85
o CPE115: All versions prior to R9.85
o CPE302: All versions prior to R9.90
o CPE305: All versions prior to R9.90
o CPE310: All versions prior to R9.90
o CRU320: (End of Life; Upgrade to CPE330)
o CPE330: All versions prior to R9.90
o CPE400: All versions prior to R9.90
o CPL410: All versions prior to R9.90
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER INPUT VALIDATION CWE-20
Sending specially manipulated packets can cause the module state to change to
halt-mode, resulting in a denial-of-service condition. An operator must reboot
the CPU module after removing battery or energy pack to recover from halt-mode.
CVE-2019-13524 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:N/
I:N/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical
Manufacturing, Dams, Defense Industrial Base, Energy, Food and
Agricultural, Government Facilities, Information Technology, Transportation
Systems, Water and Wastewater Systems
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Yeop Chang reported this vulnerability to CISA.
4. MITIGATIONS
Emerson has acquired the affected products from GE. All inquiries should be
directed to Emerson:
1-888-565-4155
1-434-214-8532 (if toll free 800 option is unavailable)
Tech Support:
support.mas@emerson.com
Sales/Order Support:
customercare.mas@emerson.com
Emerson recommends users upgrade to the following versions:
o Version R9.85
CPE100 - Upgrade Kit: 41G2393-MS10-000-A5.zip
CPE115 - Upgrade Kit: 41G2556-MS10-000-A2.zip
o Version R9.90
CPE302 - Upgrade Kit: CPE302_FW9_90_41G2552-FW01-000-A3.zip
CPE305 - Upgrade Kit: CPE305_FW9_90_41G1733-MS10-000-A20.zip
CPE310 - Upgrade Kit: CPE310_FW9_90_41G1734-MS10-000-A20.zip
CPE330 - Upgrade Kit: CPE330_FW9_90_41G2016-FW01-000-A16.zip
CPE400 - Upgrade Kit: CPE400_FW9_90_41G2376-FW01-000-A7.zip
CPL410 - Upgrade Kit: CPL410_FW9_90_41G2617-FW01-000-A3.zip
o Emerson notes that CPU/CRU320 has reached end of life. They recommend users
upgrade to CPE330.
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.
No known public exploits specifically target this vulnerability.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=bG89
-----END PGP SIGNATURE-----