6.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:S/C:N/I:N/A:C
6.2 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:N/A:H
6.2 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
35.0%
Successful exploitation of these vulnerabilities could limit system availability.
The following versions of ConnectPort LTS 32 MEI, which provides serial over Ethernet connectivity, are affected:
Successful exploitation of this vulnerability could allow an attacker to upload a malicious file to the application.
CVE-2020-6975 has been assigned to this vulnerability. A CVSS v3 base score of 2.4 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N).
Multiple cross-site scripting vulnerabilities exist that could allow an attacker to cause a denial-of-service condition.
CVE-2020-6973 has been assigned to this vulnerability. A CVSS v3 base score of 2.4 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L).
Murat Aydemir, Critical Infrastructure Penetration Test Specialist at Biznet Bilisim A.S., and Fatih Kayran, Penetration Test Specialist at Biznet Bilisim A.S., reported these vulnerabilities to CISA.
Digi recommends users upgrade to the mandatory release of ConnectPort LTS Version 1.4.5, released on November 8, 2019.
Digi International recommends the following best practices:
If you prefer manually updating one device at a time, follow these steps from the manual: Firmware update process
Contact the Digi Technical Support team at <https://www.digi.com/support> to find out more on this release.
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.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target these vulnerabilities.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-6973
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-6975
cwe.mitre.org/data/definitions/434.html
cwe.mitre.org/data/definitions/79.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Digi%20ConnectPort%20LTS%2032%20MEI+https://www.cisa.gov/news-events/ics-advisories/icsa-20-042-13
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.digi.com/resources/documentation/digidocs/pdfs/90000301-88.pdf
www.digi.com/support
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-20-042-13&title=Digi%20ConnectPort%20LTS%2032%20MEI
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L
www.instagram.com/cisagov
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www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-20-042-13
www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-20-042-13
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/ncas/tips/ST04-014
www.us-cert.gov/sites/default/files/publications/emailscams_0905.pdf
www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Digi%20ConnectPort%20LTS%2032%20MEI&body=www.cisa.gov/news-events/ics-advisories/icsa-20-042-13
6.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:S/C:N/I:N/A:C
6.2 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:N/A:H
6.2 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
35.0%