Vulnerability-Lookup

CVE-2024-23304 (GCVE-0-2024-23304)

Vulnerability from cvelistv5 – Published: 2024-02-06 04:19 – Updated: 2025-06-04 15:17

Summary

Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-02-06 20:06 UTC

CWE

Denial-of-service (DoS)
CWE-426 - Untrusted Search Path

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://cs.cybozu.co.jp/2024/010691.html
https://jvn.jp/en/jp/JVN18743512/

Impacted products

1 product

Vendor	Product	Version	CPE status
Cybozu, Inc.	Cybozu KUNAI for Android	Affected: 3.0.20 to 3.0.21	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2024-23304

Vulnerability from fkie_nvd - Published: 2024-02-06 05:15 - Updated: 2026-06-17 07:12

Severity

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

Summary

Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations.

References

URL	Tags
vultures@jpcert.or.jp	https://cs.cybozu.co.jp/2024/010691.html	Vendor Advisory
vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN18743512/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://cs.cybozu.co.jp/2024/010691.html	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN18743512/	Third Party Advisory

Impacted products

	Vendor	Product	Version
	cybozu	kunai	3.0.20
	cybozu	kunai	3.0.21

JSON

To clipboard

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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-23304",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-02-06T20:06:33.180788Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-06T05:15:10.630",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://cs.cybozu.co.jp/2024/010691.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN18743512/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://cs.cybozu.co.jp/2024/010691.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN18743512/"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-7VW2-84H4-6844

Vulnerability from github – Published: 2024-02-06 06:30 – Updated: 2024-02-14 00:35

Details

Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-23304"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-426"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-06T05:15:10Z",
    "severity": "HIGH"
  },
  "details": "Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations.",
  "id": "GHSA-7vw2-84h4-6844",
  "modified": "2024-02-14T00:35:41Z",
  "published": "2024-02-06T06:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23304"
    },
    {
      "type": "WEB",
      "url": "https://cs.cybozu.co.jp/2024/010691.html"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN18743512"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2024-23304

Vulnerability from gsd - Updated: 2024-01-16 06:02

Details

Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations.

Aliases

CVE-2024-23304

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-23304"
      ],
      "details": "Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations.",
      "id": "GSD-2024-23304",
      "modified": "2024-01-16T06:02:04.344545Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vultures@jpcert.or.jp",
        "ID": "CVE-2024-23304",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Cybozu KUNAI for Android",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "3.0.20 to 3.0.21"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Cybozu, Inc."
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Denial-of-service (DoS)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://cs.cybozu.co.jp/2024/010691.html",
            "refsource": "MISC",
            "url": "https://cs.cybozu.co.jp/2024/010691.html"
          },
          {
            "name": "https://jvn.jp/en/jp/JVN18743512/",
            "refsource": "MISC",
            "url": "https://jvn.jp/en/jp/JVN18743512/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:cybozu:kunai:3.0.20:*:*:*:*:android:*:*",
                    "matchCriteriaId": "51D968FB-B34B-4815-8C2D-C6D222D8CAF2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:cybozu:kunai:3.0.21:*:*:*:*:android:*:*",
                    "matchCriteriaId": "B0E33F67-128C-490A-9C62-6BAC8F0A83A8",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "Cybozu KUNAI for Android 3.0.20 to 3.0.21 allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition by performing certain operations."
          },
          {
            "lang": "es",
            "value": "Cybozu KUNAI para Android 3.0.20 a 3.0.21 permite que un atacante remoto no autenticado provoque una condici\u00f3n de denegaci\u00f3n de servicio (DoS) al realizar determinadas operaciones."
          }
        ],
        "id": "CVE-2024-23304",
        "lastModified": "2024-02-13T22:49:18.687",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "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:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2024-02-06T05:15:10.630",
        "references": [
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://cs.cybozu.co.jp/2024/010691.html"
          },
          {
            "source": "vultures@jpcert.or.jp",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://jvn.jp/en/jp/JVN18743512/"
          }
        ],
        "sourceIdentifier": "vultures@jpcert.or.jp",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-426"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}

JVNDB-2024-000017

Vulnerability from jvndb - Published: 2024-02-06 04:25 - Updated:2024-06-27 04:28

Severity

4.7 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L

Summary

Cybozu KUNAI for Android vulnerable to denial-of-service (DoS)

Details

Cybozu KUNAI for Android is a client application for using Cybozu products from an Android device. Cybozu KUNAI for Android contains an issue allowing to send massive requests to the connected Cybozu product if a user performs certain operations on KUNAI, which may result in repeated session disconnections in a short period of time and preventing normal use of KUNAI (CWE-436). Cybozu, Inc. reported this vulnerability to JPCERT/CC to notify users of the solution through JVN.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN18743512/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2024-23304
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2024-23304
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Cybozu, Inc.

Cybozu KUNAI

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2024/JVNDB-2024-000017.html",
  "dc:date": "2024-06-27T13:28+09:00",
  "dcterms:issued": "2024-02-06T13:25+09:00",
  "dcterms:modified": "2024-06-27T13:28+09:00",
  "description": "Cybozu KUNAI for Android is a client application for using Cybozu products from an Android device. Cybozu KUNAI for Android contains an issue allowing to send massive requests to the connected Cybozu product if a user performs certain operations on KUNAI, which may result in repeated session disconnections in a short period of time and preventing normal use of KUNAI (CWE-436).\r\n\r\nCybozu, Inc. reported this vulnerability to JPCERT/CC to notify users of the solution through JVN.",
  "link": "https://jvndb.jvn.jp/en/contents/2024/JVNDB-2024-000017.html",
  "sec:cpe": {
    "#text": "cpe:/a:cybozu:kunai",
    "@product": "Cybozu KUNAI",
    "@vendor": "Cybozu, Inc.",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "4.3",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
      "@version": "2.0"
    },
    {
      "@score": "4.7",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2024-000017",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN18743512/index.html",
      "@id": "JVN#18743512",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2024-23304",
      "@id": "CVE-2024-23304",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2024-23304",
      "@id": "CVE-2024-23304",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Cybozu KUNAI for Android vulnerable to denial-of-service (DoS)"
}

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.

Action not permitted

CVE-2024-23304 (GCVE-0-2024-23304)

FKIE_CVE-2024-23304

GHSA-7VW2-84H4-6844

GSD-2024-23304

JVNDB-2024-000017

Tags

Sightings

Nomenclature

Related by attack behaviour