10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.4 High
AI Score
Confidence
Low
0.007 Low
EPSS
Percentile
79.7%
This updated advisory is a follow-up to the original advisory titled ICSA-20-177-01 ENTTEC Lighting Controllers that was published June 25, 2020, on the ICS webpage on us-cert.gov.
Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized SSH/SCP access to devices, inject malicious code, run commands with root privileges, and read, write, and execute files in system directories as any user.
ENTTEC reports these vulnerabilities affect firmware Version 70044_update_05032019-482 and prior for the following lighting control products:
--------- Begin Update A Part 1 of 2 ---------
--------- End Update A Part 1 of 2 ---------
The lighting controller products include hard-coded SSH keys for remote SSH and SCP access as the root user.
CVE-2019-12776 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Several stored XSS vulnerabilities have been identified in ENTTECβs Datagate Mk2 web configuration software, which could allow an unauthenticated threat actor to inject malicious code directly into the application.
CVE-2019-12774 has been assigned to these vulnerabilities. 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:L/I:L/A:N).
The lighting controller products enable high privileged root access via sudo capability without requiring appropriate access control.
CVE-2019-12775 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
The system replaces permissions by the underlying operating system with highly insecure read, write, and execute directory permissions for all users.
CVE-2019-12777 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Mark Cross reported these vulnerabilities to CISA.
--------- Begin Update A Part 2 of 2 ---------
ENTTEC has released RevB (June 2020) firmware that provides additional security measures to mitigate these vulnerabilities. ENTTEC recommends the Datagate Mk2, Storm 24, and Pixelator units should be updated to RevB (June 2020) firmware or newer. Once the firmware is updated and the device is configured, ENTTEC recommends locking the unit via the front panel menu. For more information see the ENTTEC Security bulletin.
The E-Streamer Mk2 is discontinued and is no longer supported by ENTTEC. ENTTEC recommends upgrading to the S-PLAY to replace this product.
--------- End Update A Part 2 of 2 ---------
ENTTEC recommends devices should be located behind appropriate firewalls and network controls, and not accessible from the Internet.
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-12-146-01BβTargeted 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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-12774
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-12775
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-12776
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-12777
cwe.mitre.org/data/definitions/284.html
cwe.mitre.org/data/definitions/321.html
cwe.mitre.org/data/definitions/732.html
cwe.mitre.org/data/definitions/79.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
s3-us-west-2.amazonaws.com/enttec-firmware-builds/70044-70050-70060/70044_update_26062020-1521.bin
twitter.com/CISAgov
twitter.com/intent/tweet?text=ENTTEC%20Lighting%20Controllers%20%28Update%20A%29+https://www.cisa.gov/news-events/ics-advisories/icsa-20-177-01
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.enttec.com/us-cert-security-vulnerability-claim/
www.facebook.com/CISA
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-20-177-01
www.us-cert.gov/ics
www.us-cert.gov/ics
www.us-cert.gov/ics/alerts/ICS-ALERT-10-301-01
www.us-cert.gov/ics/recommended-practices
www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B
www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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mailto:?subject=ENTTEC%20Lighting%20Controllers%20%28Update%20A%29&body=www.cisa.gov/news-events/ics-advisories/icsa-20-177-01
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.4 High
AI Score
Confidence
Low
0.007 Low
EPSS
Percentile
79.7%