Vulnerability-Lookup

CVE-2023-22367 (GCVE-0-2023-22367)

Vulnerability from cvelistv5 – Published: 2023-02-13 00:00 – Updated: 2025-03-21 18:24

Summary

Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-21 18:24 UTC

CWE

Improper certificate validation
CWE-295 - Improper Certificate Validation

Assigner

jpcert jpcert root

References

3 references

URL	Tags
https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%…
https://play.google.com/store/apps/details?id=jp.…
https://jvn.jp/en/jp/JVN11257333/

Impacted products

1 product

Vendor	Product	Version	CPE status
Betrend Corporation and ICHIRAN INC.	Ichiran App for iOS and Ichiran App for Android	Affected: Ichiran App for iOS versions prior to 3.1.0, and Ichiran App for Android versions prior to 3.1.0	guessed

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2023-22367

Vulnerability from fkie_nvd - Published: 2023-02-13 02:21 - Updated: 2026-06-17 05:35

Severity

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

URL	Tags
vultures@jpcert.or.jp	https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170	Product
vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN11257333/	Third Party Advisory
vultures@jpcert.or.jp	https://play.google.com/store/apps/details?id=jp.co.ichiran.app&hl=ja	Product
af854a3a-2127-422b-91ae-364da2661108	https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170	Product
af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN11257333/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://play.google.com/store/apps/details?id=jp.co.ichiran.app&hl=ja	Product

Impacted products

	Vendor	Product	Version
	ichiranusa	ichiran	*
	ichiranusa	ichiran	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Ichiran App for iOS and Ichiran App for Android",
          "vendor": "Betrend Corporation and ICHIRAN INC.",
          "versions": [
            {
              "status": "affected",
              "version": "Ichiran App for iOS versions prior to 3.1.0, and Ichiran App for Android versions prior to 3.1.0"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ichiranusa:ichiran:*:*:*:*:*:android:*:*",
              "matchCriteriaId": "84839E97-5FE6-482E-BFCF-1D54373429D6",
              "versionEndExcluding": "3.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ichiranusa:ichiran:*:*:*:*:*:iphone_os:*:*",
              "matchCriteriaId": "0E57C5F2-A1BB-4907-B2BF-D7EDD90906EF",
              "versionEndExcluding": "3.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack."
    }
  ],
  "id": "CVE-2023-22367",
  "lastModified": "2026-06-17T05:35:13.260",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-22367",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-21T18:24:17.667665Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-02-13T02:21:07.440",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Product"
      ],
      "url": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN11257333/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Product"
      ],
      "url": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN11257333/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-G9VX-QCQW-WCPX

Vulnerability from github – Published: 2023-02-13 03:30 – Updated: 2025-03-21 21:31

Details

Severity

5.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-22367"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-02-13T02:21:00Z",
    "severity": "MODERATE"
  },
  "details": "Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack.",
  "id": "GHSA-g9vx-qcqw-wcpx",
  "modified": "2025-03-21T21:31:31Z",
  "published": "2023-02-13T03:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-22367"
    },
    {
      "type": "WEB",
      "url": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN11257333"
    },
    {
      "type": "WEB",
      "url": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-22367

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-22367

Aliases

CVE-2023-22367

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-22367",
    "id": "GSD-2023-22367"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-22367"
      ],
      "details": "Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack.",
      "id": "GSD-2023-22367",
      "modified": "2023-12-13T01:20:43.237508Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vultures@jpcert.or.jp",
        "ID": "CVE-2023-22367",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Ichiran App for iOS and Ichiran App for Android",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Ichiran App for iOS versions prior to 3.1.0, and Ichiran App for Android versions prior to 3.1.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Betrend Corporation and ICHIRAN INC."
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Improper certificate validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170",
            "refsource": "MISC",
            "url": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170"
          },
          {
            "name": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja",
            "refsource": "MISC",
            "url": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja"
          },
          {
            "name": "https://jvn.jp/en/jp/JVN11257333/",
            "refsource": "MISC",
            "url": "https://jvn.jp/en/jp/JVN11257333/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:ichiranusa:ichiran:*:*:*:*:*:iphone_os:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.1.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:ichiranusa:ichiran:*:*:*:*:*:android:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2023-22367"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Ichiran App for iOS versions prior to 3.1.0 and Ichiran App for Android versions prior to 3.1.0 improperly verify server certificates, which may allow a remote unauthenticated attacker to eavesdrop on an encrypted communication via a man-in-the-middle attack."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-295"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja",
              "refsource": "MISC",
              "tags": [
                "Product"
              ],
              "url": "https://play.google.com/store/apps/details?id=jp.co.ichiran.app\u0026hl=ja"
            },
            {
              "name": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170",
              "refsource": "MISC",
              "tags": [
                "Product"
              ],
              "url": "https://apps.apple.com/jp/app/%E4%B8%80%E8%98%AD%E5%85%AC%E5%BC%8F%E3%82%A2%E3%83%97%E3%83%AA/id1118806170"
            },
            {
              "name": "https://jvn.jp/en/jp/JVN11257333/",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://jvn.jp/en/jp/JVN11257333/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-24T06:29Z",
      "publishedDate": "2023-02-13T02:21Z"
    }
  }
}

JVNDB-2023-000013

Vulnerability from jvndb - Published: 2023-02-06 05:31 - Updated:2024-06-12 05:25

Severity

6.5 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Summary

Ichiran App vulnerable to improper server certificate verification

Details

Ichiran App developed by Betrend Corporation and provided by ICHIRAN INC. is vulnerable to improper server certificate verification (CWE-295). Ryo Nihonyanagi of BroadBand Security, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN11257333/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2023-22367
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2023-22367
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

ICHIRAN INC.

ICHIRAN official App

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2023/JVNDB-2023-000013.html",
  "dc:date": "2024-06-12T14:25+09:00",
  "dcterms:issued": "2023-02-06T14:31+09:00",
  "dcterms:modified": "2024-06-12T14:25+09:00",
  "description": "Ichiran App developed by Betrend Corporation and provided by ICHIRAN INC. is vulnerable to improper server certificate verification (CWE-295).\r\n\r\nRyo Nihonyanagi of BroadBand Security, Inc. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2023/JVNDB-2023-000013.html",
  "sec:cpe": {
    "#text": "cpe:/a:ichiranusa:ichiran",
    "@product": "ICHIRAN official App",
    "@vendor": "ICHIRAN INC.",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "4.0",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N",
      "@version": "2.0"
    },
    {
      "@score": "6.5",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2023-000013",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN11257333/index.html",
      "@id": "JVN#11257333",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2023-22367",
      "@id": "CVE-2023-22367",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2023-22367",
      "@id": "CVE-2023-22367",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Ichiran App vulnerable to improper server certificate verification"
}

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-2023-22367 (GCVE-0-2023-22367)

FKIE_CVE-2023-22367

GHSA-G9VX-QCQW-WCPX

GSD-2023-22367

JVNDB-2023-000013

Tags

Sightings

Nomenclature

Related by attack behaviour