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4 vulnerabilities found for UA .NET Standard by OPC Foundation

CVE-2023-27321 (GCVE-0-2023-27321)

Vulnerability from cvelistv5 – Published: 2024-05-07 22:55 – Updated: 2024-08-02 12:09
VLAI?
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.
Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')
Assigner
zdi
References
Impacted products
Vendor Product Version
OPC Foundation UA .NET Standard Affected: 1.4.371.60
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-8867 (GCVE-0-2020-8867)

Vulnerability from cvelistv5 – Published: 2020-04-22 20:51 – Updated: 2024-08-04 10:12
VLAI?
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.
Severity ?
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
zdi
References
Impacted products
Vendor Product Version
OPC Foundation UA .NET Standard Affected: 1.04.358.30
Create a notification for this product.
Credits
Steven Seeley (mr_me) and Chris Anastasio (muffin)
Show details on NVD website
To clipboard 

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CVE-2023-27321 (GCVE-0-2023-27321)

Vulnerability from nvd – Published: 2024-05-07 22:55 – Updated: 2024-08-02 12:09
VLAI?
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.
Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')
Assigner
zdi
References
Impacted products
Vendor Product Version
OPC Foundation UA .NET Standard Affected: 1.4.371.60
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-8867 (GCVE-0-2020-8867)

Vulnerability from nvd – Published: 2020-04-22 20:51 – Updated: 2024-08-04 10:12
VLAI?
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.
Severity ?
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
zdi
References
Impacted products
Vendor Product Version
OPC Foundation UA .NET Standard Affected: 1.04.358.30
Create a notification for this product.
Credits
Steven Seeley (mr_me) and Chris Anastasio (muffin)
Show details on NVD website
To clipboard 

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