7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8 High
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
16.3%
Successful exploitation of this vulnerability could allow an attacker to gain full control of a workstation.
The following versions of Schneider Electric Easergy Studio, a software solution for configuring, monitoring, and managing control devices, are affected:
3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502
A deserialization of untrusted data vulnerability exists in Schneider Electric Easergy Studio versions prior to v9.3.5 that could allow an attacker logged in with a user level account to gain higher privileges by providing a harmful serialized object.
CVE-2023-7032 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/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 CISA.
Schneider Electric has released the following mitigations/fixes for the following products:
Customers of Schneider Electric should use appropriate patching methodologies when applying these patches to their systems. Schneider Electric strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric’s Customer Care Center if assistance is needed in removing a patch.
If customers choose not to apply the remediation provided above, they should immediately apply Schneider Electric’s General Security Recommendations to reduce the risk of exploit. For more information, see Schneider Electric SEVD-2024-009-02.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
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. This vulnerability is not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-7032
cwe.mitre.org/data/definitions/502.html
download.schneider-electric.com/files?p_Doc_Ref=SEVD-2024-009-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2024-009-02.pdf
github.com/cisagov/CSAF
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Schneider%20Electric%20Easergy%20Studio+https://www.cisa.gov/news-events/ics-advisories/icsa-24-011-05
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/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
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-24-011-05&title=Schneider%20Electric%20Easergy%20Studio
www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-24-011-05
www.oig.dhs.gov/
www.se.com/us/en/work/support/contacts.jsp
www.se.com/ww/en/product-range/61035-easergy-studio/#software-and-firmware
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-24-011-05
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Schneider%20Electric%20Easergy%20Studio&body=www.cisa.gov/news-events/ics-advisories/icsa-24-011-05
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8 High
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
16.3%