3.3 Low
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:A/AC:L/Au:N/C:N/I:P/A:N
4.3 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.0%
CVSS v3 6.3
ATTENTION: Exploitable from an adjacent network/low skill level to exploit
Vendor: ABB
Equipment: M2M ETHERNET
Vulnerability: Improper Authentication
Successful exploitation of this vulnerability could allow an attacker to upload a malicious language file.
The following versions of M2M ETHERNET, a network analyzer, are affected:
An attacker can upload a malicious language file by bypassing the user authentication mechanism.
CVE-2018-17926 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
Maxim Rupp (RuppIT) working with ABB reported this vulnerability to NCCIC.
ABB recommends installing the device in accordance with the latest instructions from the updated technical manual. For additional information, refer to ABB’s security notification ABBVU-EPBP-R-5672.
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. 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-CERT website 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 NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
search.abb.com/library/Download.aspx?DocumentID=ABBVU-EPBP-R-5672&LanguageCode=en&DocumentPartId=2CSG299903R4052&Action=Launch
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17926
cwe.mitre.org/data/definitions/287.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=ABB%20M2M%20ETHERNET+https://www.cisa.gov/news-events/ics-advisories/icsa-18-352-07
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-18-352-07&title=ABB%20M2M%20ETHERNET
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
www.instagram.com/cisagov
www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency
www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-18-352-07
www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-18-352-07
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=ABB%20M2M%20ETHERNET&body=www.cisa.gov/news-events/ics-advisories/icsa-18-352-07
3.3 Low
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:A/AC:L/Au:N/C:N/I:P/A:N
4.3 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.0%