Vulnerability-Lookup

CVE-2021-20875 (GCVE-0-2021-20875)

Vulnerability from cvelistv5 – Published: 2021-12-24 06:30 – Updated: 2024-08-03 17:53

Summary

Open redirect vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to redirect users to arbitrary web sites and conduct phishing attacks by having a user to access a specially crafted URL.

Severity

6.1 (Medium)


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

CWE

Open Redirect

Assigner

jpcert CNA under the jpcert root

CNA scorecard C 64/100 over 185 records in the last 180 days details

References

2 references

URL	Tags
https://groupsession.jp/info/info-news/security20211220	x_refsource_MISC
https://jvn.jp/en/jp/JVN79798166/index.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
Japan Total System Co.,Ltd.	GroupSession Free edition, GroupSession byCloud, GroupSession ZION	Affected: GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2021-20875

Vulnerability from fkie_nvd - Published: 2021-12-24 07:15 - Updated: 2026-06-17 03:34

Severity

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

Summary

References

URL	Tags
vultures@jpcert.or.jp	https://groupsession.jp/info/info-news/security20211220	Vendor Advisory
vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN79798166/index.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://groupsession.jp/info/info-news/security20211220	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN79798166/index.html	Third Party Advisory

Impacted products

Vendor	Product	Version
groupsession	groupsession	*
groupsession	groupsession	*
groupsession	groupsession	*

JSON

To clipboard

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  "affected": [
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      "affectedData": [
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          "product": "GroupSession Free edition, GroupSession byCloud, GroupSession ZION",
          "vendor": "Japan Total System Co.,Ltd.",
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            }
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      "lang": "es",
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}

GHSA-VJ52-JGG8-WG96

Vulnerability from github – Published: 2021-12-25 00:00 – Updated: 2022-01-11 00:02

Details

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2021-20875"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-24T07:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Open redirect vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to redirect users to arbitrary web sites and conduct phishing attacks by having a user to access a specially crafted URL.",
  "id": "GHSA-vj52-jgg8-wg96",
  "modified": "2022-01-11T00:02:14Z",
  "published": "2021-12-25T00:00:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20875"
    },
    {
      "type": "WEB",
      "url": "https://groupsession.jp/info/info-news/security20211220"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN79798166/index.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2021-20875

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

Details

Aliases

CVE-2021-20875

Aliases

CVE-2021-20875

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-20875",
    "description": "Open redirect vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to redirect users to arbitrary web sites and conduct phishing attacks by having a user to access a specially crafted URL.",
    "id": "GSD-2021-20875"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20875"
      ],
      "details": "Open redirect vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to redirect users to arbitrary web sites and conduct phishing attacks by having a user to access a specially crafted URL.",
      "id": "GSD-2021-20875",
      "modified": "2023-12-13T01:23:12.522468Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vultures@jpcert.or.jp",
        "ID": "CVE-2021-20875",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "GroupSession Free edition, GroupSession byCloud, GroupSession ZION",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Japan Total System Co.,Ltd."
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Open redirect vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to redirect users to arbitrary web sites and conduct phishing attacks by having a user to access a specially crafted URL."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Open Redirect"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://groupsession.jp/info/info-news/security20211220",
            "refsource": "MISC",
            "url": "https://groupsession.jp/info/info-news/security20211220"
          },
          {
            "name": "https://jvn.jp/en/jp/JVN79798166/index.html",
            "refsource": "MISC",
            "url": "https://jvn.jp/en/jp/JVN79798166/index.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:groupsession:groupsession:*:*:*:*:cloud:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "5.1.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:groupsession:groupsession:*:*:*:*:free:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "5.1.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:groupsession:groupsession:*:*:*:*:zion:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "5.1.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20875"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Open redirect vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 and earlier, and GroupSession ZION ver5.1.1 and earlier allows a remote unauthenticated attacker to redirect users to arbitrary web sites and conduct phishing attacks by having a user to access a specially crafted URL."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-601"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://groupsession.jp/info/info-news/security20211220",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://groupsession.jp/info/info-news/security20211220"
            },
            {
              "name": "https://jvn.jp/en/jp/JVN79798166/index.html",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://jvn.jp/en/jp/JVN79798166/index.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2022-01-10T13:08Z",
      "publishedDate": "2021-12-24T07:15Z"
    }
  }
}

JVNDB-2021-000111

Vulnerability from jvndb - Published: 2021-12-20 05:53 - Updated:2021-12-21 05:20

Severity

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

Summary

Multiple vulnerabilities in GroupSession

Details

GroupSession provided by Japan Total System Co.,Ltd. contains multiple vulnerabilities listed below. *Incorrect Permission Assignment for Critical Resource (CWE-732) - CVE-2021-20874 *Open redirect (CWE-601) - CVE-2021-20875 *Path Traversal (CWE-22) - CVE-2021-20876 CVE-2021-20874 TAKUMA SHIGA reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership. CVE-2021-20875, CVE-2021-20876 Tsutomu Aramaki of Mitsui Bussan Secure Directions, Inc. reported these vulnerabilities to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN79798166/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2021-20874
	CVE	https://www.cve.org/CVERecord?id=CVE-2021-20875
	CVE	https://www.cve.org/CVERecord?id=CVE-2021-20876
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20874
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20875
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2021-20876
	Improper Input Validation(CWE-20)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html
	Path Traversal(CWE-22)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

Japan Total System Co.,Ltd.

GroupSession

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000111.html",
  "dc:date": "2021-12-21T14:20+09:00",
  "dcterms:issued": "2021-12-20T14:53+09:00",
  "dcterms:modified": "2021-12-21T14:20+09:00",
  "description": "GroupSession provided by Japan Total System Co.,Ltd. contains multiple vulnerabilities listed below.\r\n\r\n*Incorrect Permission Assignment for Critical Resource (CWE-732) - CVE-2021-20874\r\n*Open redirect (CWE-601) - CVE-2021-20875\r\n*Path Traversal (CWE-22) - CVE-2021-20876\r\n\r\nCVE-2021-20874\r\nTAKUMA SHIGA reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.\r\n\r\nCVE-2021-20875, CVE-2021-20876\r\nTsutomu Aramaki of Mitsui Bussan Secure Directions, Inc. reported these vulnerabilities to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000111.html",
  "sec:cpe": {
    "#text": "cpe:/a:groupsession:groupsession",
    "@product": "GroupSession",
    "@vendor": "Japan Total System Co.,Ltd.",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "5.0",
      "@severity": "Medium",
      "@type": "Base",
      "@vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
      "@version": "2.0"
    },
    {
      "@score": "7.5",
      "@severity": "High",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2021-000111",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN79798166/index.html",
      "@id": "JVN#79798166",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2021-20874",
      "@id": "CVE-2021-20874",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2021-20875",
      "@id": "CVE-2021-20875",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2021-20876",
      "@id": "CVE-2021-20876",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20874",
      "@id": "CVE-2021-20874",
      "@source": "NVD"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20875",
      "@id": "CVE-2021-20875",
      "@source": "NVD"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20876",
      "@id": "CVE-2021-20876",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-20",
      "@title": "Improper Input Validation(CWE-20)"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-22",
      "@title": "Path Traversal(CWE-22)"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Multiple vulnerabilities in GroupSession"
}

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.

Vulnerability timeline

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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.
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Action not permitted

CVE-2021-20875 (GCVE-0-2021-20875)

FKIE_CVE-2021-20875

GHSA-VJ52-JGG8-WG96

GSD-2021-20875

JVNDB-2021-000111

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