CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
59.0%
Operation with Advanced Reports
Successful exploitation of this vulnerability could allow an attacker to achieve remote code execution.
The following version of Schneider Electric EcoStruxure Power Monitoring Expert and Power Operation Products is affected:
3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502
A deserialization of untrusted data vulnerability exists that could allow an attacker to execute arbitrary code on the targeted system by sending a specifically crafted packet to the application.
CVE-2023-5391 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam) working with Trend Micro Zero Day Initiative reported this vulnerability to Schneider Electric.
Schneider Electric has released the following mitigations/fixes for the following products:
EcoStruxure Power Monitoring Expert: A Hotfix for this vulnerability is available by contacting Contact Schneider Electric’s Customer Care Center. The Hotfix can be applied to versions PME 2023, 2022, and 2021, the versions currently in support on the date of this disclosure. Previous versions, please contact customer care to inquire about upgrade paths.
EcoStruxure Power Operation with Advanced Reports and EcoStruxure Power SCADA Operation with Advanced Reports: A Hotfix for this vulnerability is available by contacting Contact Schneider Electric’s Customer Care Center. The Hotfix can be applied to versions EPO 2022, and 2021, the versions currently in support on the date of this disclosure. Previous versions, please contact customer care to inquire about upgrade paths.
Schneider Electric also recommends the following cybersecurity best practices:
For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.
For further information, see Schnieder Electric’s Security Advisory.
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/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-5391
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-23-290-01
cwe.mitre.org/data/definitions/502.html
download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-283-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-283-02.pdf
github.com/cisagov/CSAF
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/resources-tools/resources/ics-recommended-practices
www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
www.cisa.gov/topics/industrial-control-systems
www.cisa.gov/topics/industrial-control-systems
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
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