Vulnerability-Lookup

CVE-2021-20715 (GCVE-0-2021-20715)

Vulnerability from cvelistv5 – Published: 2021-04-27 05:42 – Updated: 2024-08-03 17:53

Summary

Improper access control vulnerability in Hot Pepper Gourmet App for Android ver.4.111.0 and earlier, and for iOS ver.4.111.0 and earlier allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Severity

4.3 (Medium)


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

CWE

Improper Access Control

Assigner

jpcert jpcert root

References

1 reference

URL	Tags
https://jvn.jp/en/jp/JVN97434260/index.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
Recruit Co., Ltd.	Hot Pepper Gourmet App	Affected: for Android ver.4.111.0 and earlier, and for iOS ver.4.111.0 and earlier	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2021-20715

Vulnerability from fkie_nvd - Published: 2021-04-27 06:15 - Updated: 2026-06-17 03:34

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN97434260/index.html	Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN97434260/index.html	Third Party Advisory

Impacted products

	Vendor	Product	Version
	recruit-holdings	hot_pepper_gourmet	*
	recruit-holdings	hot_pepper_gourmet	*

JSON

To clipboard

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          "vendor": "Recruit Co., Ltd.",
          "versions": [
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    }
  ],
  "id": "CVE-2021-20715",
  "lastModified": "2026-06-17T03:34:18.460",
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GHSA-H9HQ-CMW2-PXGH

Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-07-13 00:01

Details

Severity

4.3 (Medium)


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

Show details on source website

JSON

To clipboard

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  ],
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-27T06:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Improper access control vulnerability in Hot Pepper Gourmet App for Android ver.4.111.0 and earlier, and for iOS ver.4.111.0 and earlier allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.",
  "id": "GHSA-h9hq-cmw2-pxgh",
  "modified": "2022-07-13T00:01:05Z",
  "published": "2022-05-24T17:48:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20715"
    },
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      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-20715

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-20715

Aliases

CVE-2021-20715

JSON

To clipboard

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    "id": "GSD-2021-20715"
  },
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      "remediation": "unknown",
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}

JVNDB-2021-000033

Vulnerability from jvndb - Published: 2021-04-27 08:10 - Updated:2023-03-08 08:02

Severity

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

Summary

Hot Pepper Gourmet App fails to restrict access permissions

Details

Hot Pepper Gourmet App provided by Recruit Co., Ltd. implements the function to access a requested URL using Custom URL Scheme. This function contains an improper access control vulnerability (CWE-284) that may allow the vulnerable App to receive an request from an arbitrary App and execute access. Ryo Sato 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/JVN97434260/index.html
	CVE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20715
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20715
	Permissions(CWE-264)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

RECRUIT CO.,LTD.

hotpepper gourmet

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000033.html",
  "dc:date": "2023-03-08T17:02+09:00",
  "dcterms:issued": "2021-04-27T17:10+09:00",
  "dcterms:modified": "2023-03-08T17:02+09:00",
  "description": "Hot Pepper Gourmet App provided by Recruit Co., Ltd. implements the function to access a requested URL using Custom URL Scheme.\r\nThis function contains an improper access control vulnerability (CWE-284) that may allow the vulnerable App to receive an request from an arbitrary App and execute access.\r\n\r\nRyo Sato 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/2021/JVNDB-2021-000033.html",
  "sec:cpe": {
    "#text": "cpe:/a:recruit:hot_pepper_gourmet",
    "@product": "hotpepper gourmet",
    "@vendor": "RECRUIT CO.,LTD.",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "4.3",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
      "@version": "2.0"
    },
    {
      "@score": "4.3",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2021-000033",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN97434260/index.html",
      "@id": "JVN#97434260",
      "@source": "JVN"
    },
    {
      "#text": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20715",
      "@id": "CVE-2021-20715",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20715",
      "@id": "CVE-2021-20715",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-264",
      "@title": "Permissions(CWE-264)"
    }
  ],
  "title": "Hot Pepper Gourmet App fails to restrict access permissions"
}

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-2021-20715 (GCVE-0-2021-20715)

FKIE_CVE-2021-20715

GHSA-H9HQ-CMW2-PXGH

GSD-2021-20715

JVNDB-2021-000033

Tags

Sightings

Nomenclature

Related by attack behaviour