CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
92.1%
Successful exploitation of these vulnerabilities may allow remote code execution, a denial-of-service condition, information disclosure, or information tampering.
The following products versions are affected:
A specially crafted communication packet sent to the affected MC Works64 Broker64 or MC Works32 Broker32 systems could cause a denial-of-service condition or allow remote code execution.
CVE-2020-12011 has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
A specially crafted communication packet sent to the affected MC Works64 platform services could cause a denial-of-service condition due to improper deserialization.
CVE-2020-12015 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:N/A:H).
A specially crafted communication packet sent to the affected MC Works64 Workbench Pack & Go function could allow remote code execution due to improper deserialization.
CVE-2020-12009 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:N/A:H).
A specially crafted message sent from a custom client function that interfaces to the affected MC Works64 GridWorX server may allow the execution of certain arbitrary SQL commands remotely and disclose internal data or allow internal data tampering.
CVE-2020-12013 has been assigned to this vulnerability. A CVSS v3 base score of 9.4 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L).
A specially crafted communication packet sent to the affected MC Works64 FrameWorX server could allow remote code execution and a denial-of-service condition due to the deserialization vulnerability.
CVE-2020-12007 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:N/A:H).
Tobias Scharnowski, Niklas Breitfeld, Ali Abbasi, and Yehuda Anikster of Claroty; Pedro Ribeiro and Radek Domanski of Flashback; Ben McBride of Oak Ridge National Laboratory; and Steven Seeley and Chris Anastasio of Incite reported these vulnerabilities to ICONICS, a group company of Mitsubishi Electric.
Mitsubishi Electric recommends updating to the latest software version or applying security patches.
Users can get the installer of the latest software version or security patches in one of the following ways:
For more information about these vulnerabilities and related workarounds, see the MC Works Vulnerability Information website.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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 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-12-146-01B–Targeted 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. High skill level is needed to exploit.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12007
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12009
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12011
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12013
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12015
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cwe.mitre.org/data/definitions/787.html
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CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
92.1%