Advisory Details

August 14th, 2023

CODESYS Development System Improper Enforcement of Message Integrity Remote Code Execution Vulnerability

CVE ID	CVE-2023-3663
CVSS SCORE	7.1, AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS	CODESYS
AFFECTED PRODUCTS	Development System
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of CODESYS Development System. Authentication is not required to exploit this vulnerability. The specific flaw exists within the LearnMoreAction function. The issue results from a missing integrity check on notification data. An attacker can leverage this vulnerability to execute code in the context of the current user.
ADDITIONAL DETAILS	https://cert.vde.com/en/advisories/VDE-2023-022/ https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17767&token=7ed2d9324eff98a0a319c455d0256dc7627c705e&download=
DISCLOSURE TIMELINE	2023-05-11 - Vulnerability reported to vendor 2023-08-14 - Coordinated public release of advisory
CREDIT	Sina Kheirkhah (@SinSinology) of Summoning Team (@SummoningTeam)

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