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1. EXECUTIVE SUMMARY
- CVSS v3 7.8
- ATTENTION: Low attack complexity
- Vendor: GE
- Equipment: CIMPLICITY
- Vulnerabilities: Access of Uninitialized Pointer, Heap-based Buffer Overflow, Untrusted Pointer Dereference, Out-of-bounds Write
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could crash the device being accessed or allow arbitrary code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of CIMPLICITY, an HMI/SCADA software, are affected:
- CIMPLICITY: Versions 2022 and prior
3.2 VULNERABILITY OVERVIEW
The affected product is vulnerable when data from a faulting address controls code flow starting at gmmiObj!CGmmiRootOptionTable, which could allow an attacker to execute arbitrary code.
The affected product is vulnerable when data from a faulting address controls code flow starting at gmmiObj!CGmmiOptionContainer, which could allow an attacker to execute arbitrary code.
The affected product is vulnerable to a heap-based buffer overflow, which could allow an attacker to execute arbitrary code.
The affected product is vulnerable when data from faulting address controls code flow starting at gmmiObj!CGmmiOptionContainer, which could allow an attacker to execute arbitrary code.
The affected product is vulnerable to an out-of-bounds write, which could allow an attacker to execute arbitrary code.
- CRITICAL INFRASTRUCTURE SECTORS: Multiple
- COUNTRIES/AREAS DEPLOYED: Worldwide
- COMPANY HEADQUARTERS LOCATION: United States
Kimiya working with Trend micro Zero Day Initiative reported these vulnerabilities to CISA.
GE recommends users refer to the CIMPLICITY Secure Deployment Guide (login required) for mitigations to the reported vulnerabilities. Specific sections to reference include Section 3.5 Projects and Section 4.2 CimView.
For more information about this issue, see the GE Digital Product Security Advisory (login required).
For further questions, users should contact GE.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also recommends users take the following measures to protect themselves from social engineering attacks:
- Do not click web links or open attachments in unsolicited email messages.
- Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
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. These vulnerabilities are not exploitable remotely.
For any questions related to this report, please contact the CISA at:
Toll Free: 1-888-282-0870
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