Vulnerability-Lookup

FKIE_CVE-2023-39979

Vulnerability from fkie_nvd - Published: 2023-09-02 13:15 - Updated: 2026-06-17 06:13

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

There is a vulnerability in MXsecurity versions prior to 1.0.1 that can be exploited to bypass authentication. A remote attacker might access the system if the web service authenticator has insufficient random values.

References

	URL	Tags
	psirt@moxa.com	https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities	Vendor Advisory

Impacted products

	Vendor	Product	Version
	moxa	mxsecurity	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "MXsecurity Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "1.0.1",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "psirt@moxa.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:moxa:mxsecurity:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7714E640-769C-40AB-AE67-67EF9442FD5C",
              "versionEndExcluding": "1.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is a vulnerability in MXsecurity versions prior to 1.0.1 that can be exploited to bypass authentication. A remote attacker might access the system if the web service authenticator has insufficient random values.\u00a0\u00a0\n\n"
    },
    {
      "lang": "es",
      "value": "Hay una vulnerabilidad en las versiones anteriores a 1.0.1 de MXsecurity que puede aprovecharse para omitir la autenticaci\u00f3n. Un atacante remoto podr\u00eda acceder al sistema si la autenticaci\u00f3n del servicio web tiene valores aleatorios insuficientes"
    }
  ],
  "id": "CVE-2023-39979",
  "lastModified": "2026-06-17T06:13:04.730",
  "metrics": {
    "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": "psirt@moxa.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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-39979",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-30T20:18:07.436345Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-09-02T13:15:44.733",
  "references": [
    {
      "source": "psirt@moxa.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities"
    }
  ],
  "sourceIdentifier": "psirt@moxa.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-334"
        }
      ],
      "source": "psirt@moxa.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-330"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-39979 (GCVE-0-2023-39979)

Vulnerability from cvelistv5 – Published: 2023-09-02 12:05 – Updated: 2024-09-30 20:18

Title

MXsecurity Authentication Bypass

Summary

Severity

9.8 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-30 20:18 UTC

CWE

CWE-334 - Small Space of Random Values

Assigner

Moxa icscert root

References

1 reference

URL	Tags
https://www.moxa.com/en/support/product-support/s…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Moxa	MXsecurity Series	Affected: 1.0 , ≤ 1.0.1 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:18:10.246Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-39979",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-30T20:18:07.436345Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-30T20:18:16.494Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "MXsecurity Series",
          "vendor": "Moxa",
          "versions": [
            {
              "lessThanOrEqual": "1.0.1",
              "status": "affected",
              "version": "1.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
            {
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              "type": "text/html",
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          ],
          "value": "There is a vulnerability in MXsecurity versions prior to 1.0.1 that can be exploited to bypass authentication. A remote attacker might access the system if the web service authenticator has insufficient random values.\u00a0\u00a0\n\n"
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      "impacts": [
        {
          "capecId": "CAPEC-112",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-112: Brute Force"
            }
          ]
        }
      ],
      "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",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "description": "CWE-334: Small Space of Random Values",
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              "type": "CWE"
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      "providerMetadata": {
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      },
      "references": [
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          "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities"
        }
      ],
      "solutions": [
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          "lang": "en",
          "supportingMedia": [
            {
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              "type": "text/html",
              "value": "Moxa has developed appropriate solution to address the vulnerability. The solution for affected product is shown below.\u003cbr\u003e\u003cul\u003e\u003cli\u003eMXsecurity: Please upgrade to software v1.1.0 or higher.\u003c/li\u003e\u003c/ul\u003e"
            }
          ],
          "value": "Moxa has developed appropriate solution to address the vulnerability. The solution for affected product is shown below.\n  *  MXsecurity: Please upgrade to software v1.1.0 or higher.\n\n\n"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "MXsecurity Authentication Bypass",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "2e0a0ee2-d866-482a-9f5e-ac03d156dbaa",
    "assignerShortName": "Moxa",
    "cveId": "CVE-2023-39979",
    "datePublished": "2023-09-02T12:05:48.829Z",
    "dateReserved": "2023-08-08T07:09:59.307Z",
    "dateUpdated": "2024-09-30T20:18:16.494Z",
    "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.