CVE-2023-27321
CVSS V2 None
CVSS V3 None
Description
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.
Overview
- CVE ID
- CVE-2023-27321
- Assigner
- zdi
- Vulnerability Status
- PUBLISHED
- Published Version
- 2024-05-07T22:55:01.898Z
- Last Modified Date
- 2024-06-04T17:24:44.157Z
Weakness Enumerations
References
| Reference URL | Reference 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-27321 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-27321 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-06-25 01:36:28 | Added to TrackCVE |