9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
0.001 Low
EPSS
Percentile
50.5%
Successful exploitation of these vulnerabilities could result in loss of sensitive data and manipulation of information.
The following versions of D300win, a programming support tool expert, are affected:
The affected product is vulnerable to an out-of-bounds read, which could allow an attacker to leak sensitive data from the process memory.
CVE-2022-1738 has been assigned to this vulnerability. A CVSS v3 base score of 8.7 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).
The affected product is vulnerable to a write-what-where condition, which could allow an attacker to overwrite program memory to manipulate the flow of information.
CVE-2022-1523 has been assigned to this vulnerability. A CVSS v3 base score of 6.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N).
Uri Katz from Claroty reported these vulnerabilities to CISA.
Fuji Electric has fixed these vulnerabilities and recommends users upgrade to D300win v3.7.1.17 or later.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability these vulnerabilities. Specifically, users should:
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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-1523
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-1738
cisa.gov/ics
cisa.gov/ics
cwe.mitre.org/data/definitions/123.html
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us-cert.cisa.gov/ics/Recommended-Practices
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
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