Resource Consumption Vulnerability in PTC's KEPServerEX Affects Versions 6.0 to 6.14.263
CVE-2023-3825

7.5HIGH

Key Information:

Vendor

Ptc

Status
Kepserverex
Vendor
CVE Published:
31 July 2023

What is CVE-2023-3825?

PTC's KEPServerEX product, spanning versions 6.0 to 6.14.263, contains a vulnerability that allows adversaries to exploit the OPC UA protocol without checks for recursively defined objects. This could potentially lead to an attack where a maliciously crafted message causes the server's decoder to engage in continuous processing, resulting in excessive resource consumption until a stack overflow occurs, ultimately crashing the device.

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Affected Version(s)

KEPServerEX 6.0 <= 6.14.263

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-2...
government-resource

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Claroty Team82
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