CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
39.5%
Successful exploitation of these vulnerabilities could cause the affect device to become unresponsive, resulting in a denial-of-service condition and requiring a manual reboot.
The following versions of Symphony Plus network interface modules are affected:
The affected product is vulnerable to errors in handling out-of-order packets, which may cause the device to stop responding to any Ethernet-based requests. The resulting denial-of-service condition will not self-resolve, requiring a reboot to restore normal operation.
CVE-2021-22285 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
The affected product is vulnerable to specially formatted IET protocol packets that may cause the device to become unresponsive. The resulting denial-of-service condition will not self-resolve, requiring a reboot to restore normal operation.
CVE-2021-22286 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
The affected product is vulnerable to certain types of unexpected traffic that may cause the device to become unresponsive. The resulting denial-of-service condition will not self-resolve, requiring a reboot to restore normal operation.
CVE-2021-22288 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Lance Lamont from Verve Industrial Protection, and Ron Brash from Verve Industrial Protection/aDolus Technology, Inc., reported these vulnerabilities to CISA.
ABB recommends the following mitigations and workarounds.
ABB advises users to review their installations to determine if they are using an impacted product as listed above.
Please see ABB Symphony Plus advisory and ABB Cybersecurity alerts portal for more information.
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 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 cisa.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.
No known public exploits specifically target these vulnerabilities.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22285
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22286
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22288
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-22-097-02
cwe.mitre.org/data/definitions/241.html
cwe.mitre.org/data/definitions/372.html
cwe.mitre.org/data/definitions/400.html
global.abb/group/en/technology/cyber-security/alerts-and-notifications
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
search.abb.com/library/Download.aspx?DocumentID=7PAA001353&LanguageCode=en&DocumentPartId=&Action=Launch
twitter.com/CISAgov
twitter.com/intent/tweet?text=ABB%20SPIET800%20and%20PNI800+https://www.cisa.gov/news-events/ics-advisories/icsa-22-097-02
www.cisa.gov/uscert/ics
www.cisa.gov/uscert/ics
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/recommended-practices
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.cisa.gov/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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-22-097-02&title=ABB%20SPIET800%20and%20PNI800
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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-22-097-02
www.oig.dhs.gov/
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=ABB%20SPIET800%20and%20PNI800&body=www.cisa.gov/news-events/ics-advisories/icsa-22-097-02
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
39.5%