Advisory Details

February 8th, 2024

Schneider Electric Easergy Studio InitializeChannel Deserialization of Untrusted Data Local Privilege Escalation Vulnerability

CVE ID	CVE-2023-7032
CVSS SCORE	7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Schneider Electric
AFFECTED PRODUCTS	Easergy Studio
VULNERABILITY DETAILS	This vulnerability allows local attackers to escalate privileges on affected installations of Schneider Electric Easergy Studio. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the InitializeChannel method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.
ADDITIONAL DETAILS	https://www.cisa.gov/news-events/ics-advisories/icsa-24-011-05 https://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
DISCLOSURE TIMELINE	2023-06-09 - Vulnerability reported to vendor 2024-02-08 - Coordinated public release of advisory
CREDIT	Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam)

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