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CVE-2021-33014 (GCVE-0-2021-33014)

Vulnerability from cvelistv5 – Published: 2022-05-26 16:33 – Updated: 2025-04-16 17:53
VLAI
Title
KUKA KR C4 - Use of Hard-Coded Credentials
Summary
An attacker can gain VxWorks Shell after login due to hard-coded credentials on a KUKA KR C4 control software for versions prior to 8.7 or any product running KSS.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-16 17:28 UTC
CWE
  • CWE-798 - Use of Hard-coded Credentials
References
Impacted products
Vendor Product Version CPE status
KUKA KR C4 Affected: All , < v8.7 (custom)
guessed Create a notification for this product.
KUKA KSS (KUKA.SystemSoftware) Affected: All
guessed Create a notification for this product.
Show details on NVD website

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          "x_generator": {
            "engine": "Vulnogram 0.0.9"
          },
          "x_legacyV4Record": {
            "CVE_data_meta": {
              "ASSIGNER": "ics-cert@hq.dhs.gov",
              "ID": "CVE-2021-33014",
              "STATE": "PUBLIC",
              "TITLE": "KUKA KR C4 - Use of Hard-Coded Credentials"
            },
            "affects": {
              "vendor": {
                "vendor_data": [
                  {
                    "product": {
                      "product_data": [
                        {
                          "product_name": "KR C4",
                          "version": {
                            "version_data": [
                              {
                                "version_affected": "\u003c",
                                "version_name": "All",
                                "version_value": "v8.7"
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                        },
                        {
                          "product_name": "KSS (KUKA.SystemSoftware)",
                          "version": {
                            "version_data": [
                              {
                                "version_affected": "=",
                                "version_value": "All"
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                            ]
                          }
                        }
                      ]
                    },
                    "vendor_name": "KUKA"
                  }
                ]
              }
            },
            "credit": [
              {
                "lang": "eng",
                "value": "Chen Jie from NSFOCUS reported these vulnerabilities to CISA."
              }
            ],
            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
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                  "lang": "eng",
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                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              }
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "CWE-798 Use of Hard-coded Credentials"
                    }
                  ]
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            "references": {
              "reference_data": [
                {
                  "name": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-208-01",
                  "refsource": "MISC",
                  "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-208-01"
                }
              ]
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            "source": {
              "advisory": "ICSA-21-208-01",
              "discovery": "UNKNOWN"
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      "cveMetadata": {
        "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "assignerShortName": "icscert",
        "cveId": "CVE-2021-33014",
        "datePublished": "2022-05-26T16:33:08.000Z",
        "dateReserved": "2021-05-13T00:00:00.000Z",
        "dateUpdated": "2025-04-16T17:53:08.881Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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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