Vulnerability-Lookup

FKIE_CVE-2020-5801

Vulnerability from fkie_nvd - Published: 2020-12-29 16:15 - Updated: 2026-06-17 03:22

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

References

	URL	Tags
	vulnreport@tenable.com	https://www.tenable.com/security/research/tra-2020-71	Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.tenable.com/security/research/tra-2020-71	Third Party Advisory

Impacted products

	Vendor	Product	Version
	rockwellautomation	factorytalk_linx	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Rockwell FactoryTalk Linx",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "All versions of FactoryTalk Linx"
            }
          ]
        }
      ],
      "source": "vulnreport@tenable.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:rockwellautomation:factorytalk_linx:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "89622117-4485-4204-A5DA-B72F7F13D353",
              "versionEndIncluding": "6.11",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected."
    },
    {
      "lang": "es",
      "value": "Un atacante puede crear y enviar un mensaje OpenNamespace al puerto 4241 con un ID de sesi\u00f3n v\u00e1lido que desencadena una excepci\u00f3n no controlada en la funci\u00f3n CFTLDManager::HandleRequest en la biblioteca RnaDaSvr.dll, resultando en una terminaci\u00f3n del proceso.\u0026#xa0;Observado en FactoryTalk Linx versi\u00f3n 6.11.\u0026#xa0;Todas las versiones de FactoryTalk Linx est\u00e1n afectadas"
    }
  ],
  "id": "CVE-2020-5801",
  "lastModified": "2026-06-17T03:22:15.710",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-12-29T16:15:14.730",
  "references": [
    {
      "source": "vulnreport@tenable.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2020-71"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2020-71"
    }
  ],
  "sourceIdentifier": "vulnreport@tenable.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-5801 (GCVE-0-2020-5801)

Vulnerability from cvelistv5 – Published: 2020-12-29 15:15 – Updated: 2024-08-04 08:39

Summary

Severity

No CVSS data available.

CWE

Unauthenticated Remote DoS

Assigner

tenable mitre root

References

1 reference

URL	Tags
https://www.tenable.com/security/research/tra-2020-71	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Rockwell FactoryTalk Linx	Affected: All versions of FactoryTalk Linx

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T08:39:26.067Z",
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            ],
            "url": "https://www.tenable.com/security/research/tra-2020-71"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
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            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected."
        }
      ],
      "problemTypes": [
        {
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            {
              "description": "Unauthenticated Remote DoS",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-29T15:15:32.000Z",
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          "ID": "CVE-2020-5801",
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                      "version": {
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                          }
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  "cveMetadata": {
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    "dateReserved": "2020-01-06T00:00:00.000Z",
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}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.