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AUSCERT External Security Bulletin Redistribution
ESB-2022.3074
Advisory (icsa-22-174-04) Pyramid Solutions EtherNet/IP
Adapter Development Kit
24 June 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Pyramid Solutions EtherNet/IP Adapter Development Kit
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-1737
Comment: CVSS (Max): 9.8 CVE-2022-1737 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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ICS Advisory (ICSA-22-174-04)
Pyramid Solutions EtherNet/IP Adapter Development Kit
Original release date: June 23, 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 9.8
o ATTENTION: Exploitable remotely, low attack complexity
o Vendor: Pyramid Solutions, Inc.
o Equipment: EtherNet/IP Adapter Development Kit
o Vulnerability: Out-of-bounds Write
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker with
access to the EtherNet/IP network to send a specially crafted packet that may
result in a denial-of-service condition.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Pyramid Solutions' products are affected:
o EtherNet/IP Adapter Development Kit (EADK): Versions 4.4.0 and prior
o EtherNet/IP Adapter DLL Kit (EIPA): Versions 4.4.0 and prior
o EtherNet/IP Scanner Development Kit (EDKS): Versions 4.4.0 and prior
o EtherNet/IP Scanner DLL Kit (EIPS): Versions 4.4.0 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 OUT-OF-BOUNDS WRITE CWE-787
The affected products are vulnerable to an out-of-bounds write, which may allow
an unauthorized attacker to send a specially crafted packet that may result in
a denial-of-service condition.
CVE-2022-1737 has been assigned to this vulnerability. A CVSS v3 base score of
9.8 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:H/
I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Financial Services
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Weidmueller reported this vulnerability to CERT@VDE
4. MITIGATIONS
Pyramid Solutions recommends upgrading any products using the affected versions
of EADK, EIPA, EIPS, and ESDK to the latest product revision. Information on
the latest version is available at Pyramid Solutions' website .
The following additional vendor affected by the reported vulnerability has also
released security advisories related to this vulnerability:
o Weidmuller Interface GmbH & Co. KG
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/ics 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/ics 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.
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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