CVE-2020-8476 (GCVE-0-2020-8476)

Vulnerability from cvelistv5 – Published: 2020-04-29 00:00 – Updated: 2024-08-04 10:03
VLAI
Title
ABB Central Licensing System - Elevation of Privilege Vulnerability
Summary
For the Central Licensing Server component used in ABB products ABB Ability™ System 800xA and related system extensions versions 5.1, 6.0 and 6.1, Compact HMI versions 5.1 and 6.0, Control Builder Safe 1.0, 1.1 and 2.0, Symphony Plus -S+ Operations 3.0 to 3.2 Symphony Plus -S+ Engineering 1.1 to 2.2, Composer Harmony 5.1, 6.0 and 6.1, Melody Composer 5.3, 6.1/6.2 and SPE for Melody 1.0SPx (Composer 6.3), Harmony OPC Server (HAOPC) Standalone 6.0, 6.1 and 7.0, ABB Ability™ System 800xA/ Advant® OCS Control Builder A 1.3 and 1.4, Advant® OCS AC100 OPC Server 5.1, 6.0 and 6.1, Composer CTK 6.1 and 6.2, AdvaBuild 3.7 SP1 and SP2, OPCServer for MOD 300 (non-800xA) 1.4, OPC Data Link 2.1 and 2.2, Knowledge Manager 8.0, 9.0 and 9.1, Manufacturing Operations Management 1812 and 1909, ABB AbilityTM SCADAvantage versions 5.1 to 5.6.5, a weakness in validation of input exists that allows an attacker to alter licenses assigned to the system nodes by sending specially crafted messages to the CLS web service.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-20 - Improper Input Validation
Assigner
ABB CNA under the icscert root
CNA scorecard C 68/100 over 17 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ABB Central Licensing System Affected: 5.1 , < 5* (custom)
guessed Create a notification for this product.
ABB ABB Ability System 800xA Affected: 5.1
Affected: 6.0
Affected: 6.1
guessed Create a notification for this product.
ABB Compact HMI Affected: 5.1
Affected: 6.0
guessed Create a notification for this product.
ABB Control Builder Safe Affected: 1.0
Affected: 1.1
Affected: 2.0
guessed Create a notification for this product.
ABB Symphony Plus S+ Operations Affected: 3 , ≤ 3.2 (custom)
guessed Create a notification for this product.
ABB Symphony Plus S+ Engineering Affected: 1.1 , ≤ 2.2 (custom)
guessed Create a notification for this product.
ABB Composer Harmony Affected: 5.1
Affected: 6.0
Affected: 6.1
guessed Create a notification for this product.
ABB Composer Melody Affected: 5.3
Affected: 6 , ≤ 6.3 (custom)
guessed Create a notification for this product.
ABB Harmony OPC Server Standalone Affected: 6.0
Affected: 6.1
Affected: 7.0
guessed Create a notification for this product.
ABB Advant OCS Control Builder A Affected: 1.3
Affected: 1.4
guessed Create a notification for this product.
ABB Composer CTK Affected: 6.1
Affected: 6.2
guessed Create a notification for this product.
ABB AdvaBuild Affected: 3.7 SP1
Affected: 3.7 SP2
guessed Create a notification for this product.
ABB OPC Server for Mod 300 (non-800xA) Affected: 1.4
guessed Create a notification for this product.
ABB OPC Data Link Affected: 2.1
Affected: 2.2
guessed Create a notification for this product.
ABB Knowledge Manager Affected: 8.0
Affected: 9.0
Affected: 9.1
guessed Create a notification for this product.
ABB Manufacturing Operations Management Affected: 1812
Affected: 1909
guessed Create a notification for this product.
ABB Advant OCS AC 100 OPS Server Affected: 5.1
Affected: 6.0
Affected: 6.1
guessed Create a notification for this product.
ABB ABB Ability™ SCADAvantage Affected: 5.1 , < unspecified (custom)
Affected: unspecified , ≤ 5.6.5 (custom)
guessed Create a notification for this product.
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            "value": "For the Central Licensing Server component used in ABB products ABB Ability\u2122 System 800xA and related system extensions versions 5.1, 6.0 and 6.1, Compact HMI versions 5.1 and 6.0, Control Builder Safe 1.0, 1.1 and 2.0, Symphony Plus -S+ Operations 3.0 to 3.2 Symphony Plus -S+ Engineering 1.1 to 2.2, Composer Harmony 5.1, 6.0 and 6.1, Melody Composer 5.3, 6.1/6.2 and SPE for Melody 1.0SPx (Composer 6.3), Harmony OPC Server (HAOPC) Standalone 6.0, 6.1 and 7.0, ABB Ability\u2122 System 800xA/ Advant\u00ae OCS Control Builder A 1.3 and 1.4, Advant\u00ae OCS AC100 OPC Server 5.1, 6.0 and 6.1, Composer CTK 6.1 and 6.2, AdvaBuild 3.7 SP1 and SP2, OPCServer for MOD 300 (non-800xA) 1.4, OPC Data Link 2.1 and 2.2, Knowledge Manager 8.0, 9.0 and 9.1, Manufacturing Operations Management 1812 and 1909, ABB AbilityTM SCADAvantage versions 5.1 to 5.6.5, a weakness in validation of input exists that allows an attacker to alter licenses assigned to the system nodes by sending specially crafted messages to the CLS web service."
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            "lang": "es",
            "value": "Para el componente Central Licensing Server utilizado en los productos ABB Ability\u2122 System 800xA y las extensiones del sistema relacionadas, versiones 5.1, 6.0 y 6.1, Compact HMI versiones 5.1 y 6.0, Control Builder Safe 1.0, 1.1 y 2.0, Symphony Plus -S+ Operations 3.0 a 3. 2 Symphony Plus -S+ Engineering 1.1 a 2.2, Composer Harmony 5.1, 6.0 y 6.1, Melody Composer 5.3, 6.1/6.2 y SPE para Melody 1.0SPx (Composer 6.3), Harmony OPC Server (HAOPC) Standalone 6.0, 6.1 y 7.0, ABB Ability\u2122 System 800xA/ Advant\u00ae OCS Control Builder A 1. 3 y 1.4, Advant\u00ae OCS AC100 OPC Server 5.1, 6.0 y 6.1, Composer CTK 6.1 y 6.2, AdvaBuild 3.7 SP1 y SP2, OPCServer for MOD 300 (non-800xA) 1.4, OPC Data Link 2.1 y 2.2, Knowledge Manager 8.0, 9.0 y 9. 1, Manufacturing Operations Management 1812 y 1909, ABB AbilityTM SCADAvantage versiones 5.1 a 5.6.5, existe una debilidad en la validaci\u00f3n de la entrada que permite a un atacante alterar las licencias asignadas a los nodos del sistema enviando mensajes especialmente dise\u00f1ados al servicio web CLS"
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        "id": "CVE-2020-8476",
        "lastModified": "2024-11-21T05:38:54.843",
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              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "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:L",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "cybersecurity@ch.abb.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2020-04-29T02:15:11.687",
        "references": [
          {
            "source": "cybersecurity@ch.abb.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA121230\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          },
          {
            "source": "cybersecurity@ch.abb.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA121231\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          },
          {
            "source": "cybersecurity@ch.abb.com",
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=3CCA2020-003309\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA121230\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA121231\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://search.abb.com/library/Download.aspx?DocumentID=3CCA2020-003309\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
          }
        ],
        "sourceIdentifier": "cybersecurity@ch.abb.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "cybersecurity@ch.abb.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-05-22T17:12:54+00:00",
      "cve": "CVE-2020-8476",
      "id": "CVE-2020-8476",
      "initial_release_date": "2020-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ABB Central Licensing System - Elevation of Privilege Vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-8476.json",
      "version": "3"
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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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.