CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
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
87.7%
Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition, obtain remote code execution, and read sensitive information.
The following products are affected:
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The following products that utilize FactoryTalk Linx Software are affected:
An exposed API call allows users to provide files to be processed without sanitation. This may allow an attacker to specify a filename to execute unauthorized code and modify files or data.
CVE-2020-11999 has been assigned to this vulnerability. A CVSS v3 base score of 9.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).
The parsing mechanism that processes certain file types does not provide input sanitation. This may allow an attacker to use specially crafted files to traverse the file system and modify or expose sensitive data or execute arbitrary code.
CVE-2020-12001 has been assigned to this vulnerability. A CVSS v3 base score of 9.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N).
An exposed API call allows users to provide files to be processed without sanitation. This may allow an attacker to use specially crafted requests to traverse the file system and expose sensitive data on the local hard drive.
CVE-2020-12003 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:H/I:N/A:N).
A vulnerability exists in the communication function that enables users to upload EDS files by FactoryTalk Linx. This may allow an attacker to upload a file with bad compression, consuming all the available CPU resources, leading to a denial-of-service condition.
CVE-2020-12005 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).
Sharon Brizinov and Amir Preminger (VP Research) of Claroty reported these vulnerabilities to Rockwell Automation and CISA.
Rockwell Automation recommends users apply these patches by following instructions in knowledgebase articles below:
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 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-2020-11999
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12001
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12003
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12005
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rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1126433
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/54102
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/898270
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CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
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
87.7%