Vulnerability-Lookup

FKIE_CVE-2020-24683

Vulnerability from fkie_nvd - Published: 2020-12-22 22:15 - Updated: 2026-06-17 03:05

Severity

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

Summary

The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application.

References

	URL	Tags
	cybersecurity@ch.abb.com	https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launch	Mitigation, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launch	Mitigation, Vendor Advisory

Impacted products

Vendor	Product	Version
abb	symphony_\+_historian	3.0
abb	symphony_\+_historian	3.1
abb	symphony_\+_operations	1.1
abb	symphony_\+_operations	2.0
abb	symphony_\+_operations	2.1
abb	symphony_\+_operations	2.1
abb	symphony_\+_operations	3.0
abb	symphony_\+_operations	3.1
abb	symphony_\+_operations	3.2
abb	symphony_\+_operations	3.3

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ABB Ability\u2122 Symphony\u00ae Plus Operations",
          "vendor": "ABB",
          "versions": [
            {
              "lessThan": "2.1 SP1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cybersecurity@ch.abb.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_historian:3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DAAEE275-0C2C-4D15-B0CB-B51706015769",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_historian:3.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "8A89B5F4-5BE7-4B0E-9ADF-46630017221C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:1.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "21FB4D84-598C-486D-9A16-F24AEAA8B2A5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "96371CD8-6C8A-459E-9A7E-34694B9F648E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:2.1:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "5D3E3D88-6544-459D-A5F3-AFB682FF8462",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:2.1:sp2:*:*:*:*:*:*",
              "matchCriteriaId": "ED64EBDB-B30B-49ED-88C9-7FC2B092FEA3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "A6281EC9-5771-4B95-B18C-C11A0EABDA25",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:3.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "3B553708-205B-4B87-BFE9-1570C1AAE06F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:3.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "C8D38257-9207-4AED-818F-EA6E09393491",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:abb:symphony_\\+_operations:3.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "7EBFA7A6-0EF8-46FC-B92F-AF448531B997",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application."
    },
    {
      "lang": "es",
      "value": "Las versiones afectadas de S+ Operations (versi\u00f3n 2.1 SP1 y anteriores) utilizaron un enfoque para la autenticaci\u00f3n de usuarios que se basa en la comprobaci\u00f3n en el nodo del cliente (autenticaci\u00f3n del lado del cliente).\u0026#xa0;Esto no es tan seguro como hacer que el servidor valide una aplicaci\u00f3n cliente antes de permitir una conexi\u00f3n.\u0026#xa0;Por lo tanto, si la comunicaci\u00f3n de red o los endpoints para estas aplicaciones no est\u00e1n protegidas, los actores no autorizados pueden omitir la autenticaci\u00f3n y llevar a cabo conexiones no autorizadas hacia la aplicaci\u00f3n del servidor"
    }
  ],
  "id": "CVE-2020-24683",
  "lastModified": "2026-06-17T03:05:58.960",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "cybersecurity@ch.abb.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-12-22T22:15:13.757",
  "references": [
    {
      "source": "cybersecurity@ch.abb.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
    }
  ],
  "sourceIdentifier": "cybersecurity@ch.abb.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-305"
        },
        {
          "lang": "en",
          "value": "CWE-602"
        }
      ],
      "source": "cybersecurity@ch.abb.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-669"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-24683 (GCVE-0-2020-24683)

Vulnerability from cvelistv5 – Published: 2020-12-22 21:19 – Updated: 2024-09-17 01:36

Title

Authentication Bypass in Symphony Plus

Summary

Severity

9.8 (Critical)


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

CWE

CWE-602 - Client-Side Enforcement of Server-Side Security
CWE-305 - Authentication Bypass by Primary Weakness

Assigner

ABB icscert root

References

1 reference

URL	Tags
https://search.abb.com/library/Download.aspx?Docu…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ABB	ABB Ability™ Symphony® Plus Operations	Affected: unspecified , < 2.1 SP1 (custom)

Date Public

2020-12-15 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T15:19:09.118Z",
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        },
        "references": [
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              "x_transferred"
            ],
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ABB Ability\u2122 Symphony\u00ae Plus Operations",
          "vendor": "ABB",
          "versions": [
            {
              "lessThan": "2.1 SP1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
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      ],
      "datePublic": "2020-12-15T00:00:00.000Z",
      "descriptions": [
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          "value": "The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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      },
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        }
      ],
      "source": {
        "advisory": "2PAA123980, 2PAA123982",
        "discovery": "INTERNAL"
      },
      "title": "Authentication Bypass in Symphony Plus",
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          "ASSIGNER": "cybersecurity@ch.abb.com",
          "DATE_PUBLIC": "2020-12-15T13:10:00.000Z",
          "ID": "CVE-2020-24683",
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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.