Advisory Details

October 21st, 2022

(Pwn2Own) Kepware KEPServerEX Stack-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2022-2825
CVSS SCORE	9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Kepware
AFFECTED PRODUCTS	KEPServerEX
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of text encoding conversions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.
ADDITIONAL DETAILS	Kepware has issued an update to correct this vulnerability. More details can be found at: https://www.cisa.gov/uscert/ics/advisories/icsa-22-242-10
DISCLOSURE TIMELINE	2022-08-18 - Vulnerability reported to vendor 2022-10-21 - Coordinated public release of advisory
CREDIT	Vera Mens, Uri Katz, Sharon Brizinov of Claroty Research

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