All the vulnerabilites related to OPC Foundation - UA .NET Standard
cve-2020-8867
Vulnerability from cvelistv5
Published
2020-04-22 20:51
Modified
2024-08-04 10:12
Severity ?
EPSS score ?
Summary
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to create a denial-of-service condition against the application. Was ZDI-CAN-10295.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-20-536/ | x_refsource_MISC | |
| https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-8867.pdf | x_refsource_MISC |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | OPC Foundation | UA .NET Standard |
Version: 1.04.358.30 |
|
|
|||
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cve-2023-27321
Vulnerability from cvelistv5
Published
2024-05-07 22:55
Modified
2024-08-02 12:09
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-23-548/ | x_research-advisory | |
| https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf | vendor-advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | OPC Foundation | UA .NET Standard |
Version: 1.4.371.60 |
|
|
|||
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