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AUSCERT External Security Bulletin Redistribution
ESB-2022.6060
Advisory (icsa-22-321-01) Red Lion Crimson
21 November 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Red Lion Crimson
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-3090
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-22-321-01
Comment: CVSS (Max): 7.5 CVE-2022-3090 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
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:N/A:N
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ICS Advisory (ICSA-22-321-01)
Red Lion Crimson
Original release date: November 17, 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 7.5
o ATTENTION: Exploitable remotely/low attack complexity
o Vendor: Red Lion Controls
o Equipment: Crimson
o Vulnerability: Path Traversal
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to obtain
user credential hashes.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Crimson, a programming software for various
controllers, HMIs, and modules are affected:
o Crimson 3.0: Version 707.000 and prior
o Crimson 3.1: Version 3126.001 and prior
o Crimson 3.2: Version 3.2.0044.0 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY ('PATH
TRAVERSAL') CWE-22
Red Lion Controls Crimson 3.0 versions 707.000 and prior, Crimson 3.1 versions
3126.001 and prior, and Crimson 3.2 versions 3.2.0044.0 and prior are
vulnerable to path traversal. When attempting to open a file using a specific
path, the user's password hash is sent to an arbitrary host. This could allow
an attacker to obtain user credential hashes.
CVE-2022-3090 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:H/
I:N/A:N ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Multiple Sectors
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Dragos reported this vulnerability to Red Lion Controls, who reported this
vulnerability to CISA.
4. MITIGATIONS
Red Lion Controls recommends updating to the following versions or later:
ICS
o Crimson 3.0: Version 711.00
o Crimson 3.1: Version 3126.02
o Crimson 3.2: Version 3.0045
Red Lion Controls also recommends the following guidelines to reduce the risk
of this vulnerability:
o Users should avoid opening files originating from outside the organization.
o Users should verify files come from a trusted source prior to opening.
For more information and details, see Red Lion Security Bulletin RLCSB-2022ST31
.
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability these vulnerabilities. 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 business networks.
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 at cisa.gov/ics . Several CISA products detailing cyber
defense best 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 at cisa.gov/ics in the technical information paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing suspected malicious activity should follow established
internal procedures and report 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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