CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
60.7%
Successful exploitation of this vulnerability could allow an attacker to access database credentials, shut down the product, and access or alter system data.
Hitachi ABB Power Grids reports this vulnerability affects the following utility usage and billing software products:
An attacker who has gained access to an authorized userβs computer could exploit this vulnerability to access database credentials and gain read/edit access to application data.
CVE-2021-35529 has been assigned to this vulnerability. A CVSS v3 base score of 7.7 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N).
Hitachi ABB Power Grids recommends updating to Version 5.7.3 or later, which resolves this vulnerability. For more information on this advisory, see the Hitachi ABB Power Grids security advisory or contact Hitachi ABB Power Grids.
Hitachi ABB Power Grids suggests recommended security practices, operating systems hardening, and firewall configurations can help protect a userβs computer from the attacks. An entry point for this vulnerability is the unsecured operating system on which the product is installed. Hitachi ABB Power Grids recommends hardening the operating system accordingly.
For additional information, please see the following Hitachi ABB Power Grids security advisories:
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.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 this vulnerability. This vulnerability has a high attack complexity.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-35529
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-21-236-02
cwe.mitre.org/data/definitions/522.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
search.abb.com/library/Download.aspx?DocumentID=9AKK107992A5821&LanguageCode=en&DocumentPartId=&Action=Launch
search.abb.com/library/Download.aspx?DocumentID=9AKK107992A5821&LanguageCode=en&DocumentPartId=&Action=Launch
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us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01
us-cert.cisa.gov/ics/recommended-practices
us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisecurity.org/about-us/
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
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CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
60.7%