Vulnerability-Lookup

FKIE_CVE-2021-22275

Vulnerability from fkie_nvd - Published: 2022-05-13 15:15 - Updated: 2026-06-17 03:36

Severity

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

Summary

Buffer Overflow vulnerability in B&R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service.

References

	URL	Tags
	cybersecurity@ch.abb.com	https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf	Vendor Advisory

Impacted products

	Vendor	Product	Version
	br-automation	automation_runtime	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Automation Runtime webserver",
          "vendor": "B\u0026R Automation",
          "versions": [
            {
              "lessThan": "4.91",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cybersecurity@ch.abb.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:br-automation:automation_runtime:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D2BDE298-669C-4AFA-AAE1-E8568D3CEBD1",
              "versionEndExcluding": "4.91",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer Overflow vulnerability in B\u0026R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento del b\u00fafer en el servidor web de B\u0026amp;R Automation Runtime permite a un atacante no autenticado basado en la red detener el programa c\u00edclico en el dispositivo y causar una denegaci\u00f3n de servicio"
    }
  ],
  "id": "CVE-2021-22275",
  "lastModified": "2026-06-17T03:36:55.090",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "cybersecurity@ch.abb.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-05-13T15:15:08.130",
  "references": [
    {
      "source": "cybersecurity@ch.abb.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf"
    }
  ],
  "sourceIdentifier": "cybersecurity@ch.abb.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "cybersecurity@ch.abb.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-22275 (GCVE-0-2021-22275)

Vulnerability from cvelistv5 – Published: 2022-05-13 14:23 – Updated: 2024-08-03 18:37

Title

Denial of service vulnerability on Automation Runtime webserver

Summary

Buffer Overflow vulnerability in B&R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service.

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-120 - Buffer Overflow

Assigner

ABB icscert root

References

1 reference

URL	Tags
https://www.br-automation.com/downloads_br_produc…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
B&R Automation	Automation Runtime webserver	Affected: unspecified , < 4.91 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:37:18.446Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Automation Runtime webserver",
          "vendor": "B\u0026R Automation",
          "versions": [
            {
              "lessThan": "4.91",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": "Buffer Overflow vulnerability in B\u0026R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "description": "CWE-120 Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2022-05-13T14:23:20.000Z",
        "orgId": "2b718523-d88f-4f37-9bbd-300c20644bf9",
        "shortName": "ABB"
      },
      "references": [
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            "x_refsource_MISC"
          ],
          "url": "https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Denial of service vulnerability on Automation Runtime webserver",
      "workarounds": [
        {
          "lang": "en",
          "value": "B\u0026R recommends the following specific workarounds and mitigations:\nThe access to the Automation Runtime webserver should be restricted to legitimate network partners, using e.g. a sufficient Firewall setup and robust network segmentation. \nB\u0026R recommends deactivating Automation Runtime webserver when not needed."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cybersecurity@ch.abb.com",
          "ID": "CVE-2021-22275",
          "STATE": "PUBLIC",
          "TITLE": "Denial of service vulnerability on Automation Runtime webserver"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Automation Runtime webserver",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "4.91"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "B\u0026R Automation"
              }
            ]
          }
        },
        "data_format": "MITRE",
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        "data_version": "4.0",
        "description": {
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            }
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        "impact": {
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            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
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        "problemtype": {
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        "references": {
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              "refsource": "MISC",
              "url": "https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf"
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          ]
        },
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          }
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      }
    }
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  "cveMetadata": {
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    "assignerShortName": "ABB",
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    "datePublished": "2022-05-13T14:23:20.000Z",
    "dateReserved": "2021-01-05T00:00:00.000Z",
    "dateUpdated": "2024-08-03T18:37:18.446Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.