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AUSCERT External Security Bulletin Redistribution
ESB-2023.0270
Advisory (icsa-23-017-01) GE Digital Proficy Historian
18 January 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: GE Digital Proficy Historian
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-46732 CVE-2022-46660 CVE-2022-46331
CVE-2022-43494 CVE-2022-38469
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-23-017-01
Comment: CVSS (Max): 9.8 CVE-2022-46732 (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-23-017-01)
GE Digital Proficy Historian
Original release date: January 17, 2023
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: GE Digital
o Equipment: Proficy Historian
o Vulnerabilities: Authentication Bypass using an Alternate Path or Channel,
Unrestricted Upload of File with Dangerous Type, Improper Access Control,
Weak Encoding for Password
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could crash the device after
access, cause a buffer overflow condition, and allow remote code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
GE Digital reports these vulnerabilities affect the following Proficy Historian
product:
o Proficy Historian v7.0 and higher versions
Not Affected: Other GE software offerings including GE Digital and Proficy
Products not listed above.
3.2 VULNERABILITY OVERVIEW
3.2.1 AUTHENTICATION BYPASS USING AN ALTERNATE PATH OR CHANNEL CWE-288
Even if the authentication fails for local service authentication, the
requested command could still execute regardless of authentication status.
CVE-2022-46732 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 UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
An unauthorized user could alter or write files with full control over the path
and content of the file.
CVE-2022-46660 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:N/I:H/A:N ).
3.2.3 IMPROPER ACCESS CONTROL CWE-284
An unauthorized user could be able to read any file on the system, potentially
exposing sensitive information.
CVE-2022-43494 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:H/I:N/A:N ).
3.2.4 IMPROPER ACCESS CONTROL CWE-284
An unauthorized user could possibly delete any file on the system.
CVE-2022-46331 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:N/I:H/A:N ).
3.2.5 WEAK ENCODING FOR PASSWORD CWE-261
An unauthorized user with network access and the decryption key could decrypt
sensitive data, such as usernames and passwords.
CVE-2022-38469 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been calculated; 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 Industries
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Uri Katz of Claroty Research reported these vulnerabilities to GE.
4. MITIGATIONS
GE Digital released Proficy Historian 2023 to mitigate these vulnerabilities.
SIMs have also been released for all affected versions.
Users can find out more about the vulnerabilities, how to obtain, and install
the updates by visiting this notification document from GE Digital .
CISA recommends users take defensive measures to minimize the risk of
exploitation of 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 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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