Description (CNA)
OPC Foundation UA .NET Standard ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC UA ConditionRefresh requests. 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. Was ZDI-CAN-20505.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OPC Foundation / UA .NET Standard | affected 1.4.371.60 |
CWE
CWE-400
References
- https://www.zerodayinitiative.com/advisories/ZDI-23-548/
- https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.