CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:P/A:P
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H
AI Score
Confidence
High
EPSS
Percentile
19.7%
Successful exploitation of these vulnerabilities could lead to a denial-of-service condition.
The following products that utilize the EDS Subsystem (Version 28.0.1 and prior) are affected:
A memory corruption vulnerability exists in the algorithm that matches square brackets in the EDS subsystem. This may allow an attacker to craft specialized EDS files to crash the EDSParser COM object, leading to denial-of-service conditions.
CVE-2020-12038 has been assigned to this vulnerability. A CVSS v3 base score of 6.7 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:H).
The EDS subsystem does not provide adequate input sanitization, which may allow an attacker to craft specialized EDS files to inject SQL queries and manipulate the database storing the EDS files. This may lead to denial-of-service (DoS) conditions or allow an attacker to manipulate the SQL engine to write or modify files on the system.
CVE-2020-12034 has been assigned to this vulnerability. A CVSS v3 base score of 8.2 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H).
Sharon Brizinov and Amir Preminger (VP Research) of Claroty reported these vulnerabilities to Rockwell Automation and CISA.
Rockwell Automation recommends the following:
Network-based vulnerability mitigations for embedded products:
General mitigations:
For more information please refer to Rockwell Automationβs security advisory 54102-Industrial Security Advisory Index.
CISA recommends users take the following measures to protect themselves from social engineering attacks:
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 on us-cert.gov. Several recommended 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 on us-cert.gov in the Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their 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-2020-12034
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12038
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cwe.mitre.org/data/definitions/119.html
cwe.mitre.org/data/definitions/89.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1125928
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/54102
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/898270
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www.us-cert.gov/sites/default/files/publications/emailscams_0905.pdf
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mailto:?subject=Rockwell%20Automation%20EDS%20Subsystem&body=www.cisa.gov/news-events/ics-advisories/icsa-20-140-01
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:P/A:P
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H
AI Score
Confidence
High
EPSS
Percentile
19.7%