CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS
Percentile
65.2%
Successful exploitation of these vulnerabilities could crash the device being accessed, and buffer overflow conditions could allow remote code execution.
The following versions of libIEC61850, IEC 61850 implementation software, are affected:
The affected product does not sanitize input before memcpy is used, which could allow an attacker to crash the device or remotely execute arbitrary code.
CVE-2022-2970 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
The affected product is vulnerable to a stack-based buffer overflow, which could allow an attacker to crash the device or remotely execute arbitrary code.
CVE-2022-2972 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
The affected product accesses a resource using an incompatible type, which could allow an attacker to crash the server with a malicious payload.
CVE-2022-2971 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H).
The affected product uses a NULL pointer in certain situations. which could allow an attacker to crash the server.
CVE-2022-2973 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H).
Vera Mens of Claroty Research reported these vulnerabilities to CISA.
MZ Automation recommends users update to the latest version: libIEC61850.
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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-2970
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-2971
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-2972
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-2973
cisa.gov/ics
cisa.gov/ics
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-22-251-01
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/476.html
cwe.mitre.org/data/definitions/843.html
github.com/mz-automation/libiec61850
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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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