5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.3 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
52.3%
Successful exploitation of these vulnerabilities could allow an attacker to steal sensitive information, hijack a userβs session, or compromise authentication credentials.
Hitachi ABB Power Grids reports these vulnerabilities affect the following Ellipse Enterprise Asset Management (EAM) products:
An attacker could exploit this vulnerability by tricking a user to click on a link containing malicious code that would then be run by the web browser. This can result in the compromise of confidential information, or even the takeover of the userβs session.
CVE-2021-27416 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L).
An attacker could trick a user into visiting a malicious website posing as a login page for the Ellipse application and gather authentication credentials.
CVE-2021-27414 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L).
Hitachi ABB Power Grids reported these vulnerabilities to CISA.
Hitachi ABB Power Grids recommends users apply the update as soon as they are able. Ellipse EAM Version 9.0.23 fixes one of the vulnerabilities, and Ellipse EAM Version 9.0.26 fixes both.
Hitachi ABB Power Grids published cybersecurity advisory PGVU-PGGA-Ellipse-202027 to give users more information about this issue.
Hitachi ABB Power Grids recommends following security best practices and firewall configurations to help protect a process control network from attacks originating from an outside the network. Such practices include:
CISA recommends users take the following measures to protect themselves from social engineering attacks:
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.cisa.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.cisa.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-2021-27414
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-27416
cwe.mitre.org/data/definitions/451.html
cwe.mitre.org/data/definitions/79.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
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us-cert.cisa.gov/ics
us-cert.cisa.gov/ics
us-cert.cisa.gov/ics/recommended-practices
us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B
us-cert.cisa.gov/ncas/tips/ST04-014
us-cert.cisa.gov/sites/default/files/publications/emailscams_0905.pdf
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
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mailto:?subject=Hitachi%20ABB%20Power%20Grids%20Ellipse%20EAM&body=www.cisa.gov/news-events/ics-advisories/icsa-21-061-01
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.3 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
52.3%