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zdiClaroty Research - Team82 - Uri Katz, Noam Moshe, Vera Mens, Sharon BrizinovZDI-23-709
HistoryMay 17, 2023 - 12:00 a.m.

(Pwn2Own) Prosys OPC UA Simulation Server Resource Exhaustion Denial-of-Service Vulnerability

2023-05-1700:00:00
Claroty Research - Team82 - Uri Katz, Noam Moshe, Vera Mens, Sharon Brizinov
www.zerodayinitiative.com
15
pwn2own
remote attackers
denial-of-service
prosys opc ua simulation server
message chunks
resource exhaustion
vulnerability
authentication
exploit

EPSS

0.002

Percentile

57.2%

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Prosys OPC UA Simulation Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of message chunks. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

EPSS

0.002

Percentile

57.2%

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