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VAR-201204-0097

Vulnerability from variot - Updated: 2023-12-18 12:45

Open Automation Software OPC Systems.NET before 5.0 allows remote attackers to cause a denial of service via a malformed .NET RPC packet on TCP port 58723. OPC Systems.NET is a .NET product for SCADA, HMI and production line-to-business solutions. OPC Systems.NET handles malformed .NET RPC messages with security vulnerabilities. Submitting malicious requests can cause OPCSystemsService.exe to consume a large amount of CPU, causing denial of service attacks. OPC Systems.NET is prone to a denial-of-service vulnerability. An attacker may exploit this issue to crash the affected application, denying service to legitimate users. OPC Systems.NET 4.00.0048 is vulnerable; other versions may also be affected

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Taxonomy of the tags.


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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