CVE-2021-20789

{"containers": {"cna": {"affected": [{"product": "GroupSession", "vendor": "Japan Total System Co.,Ltd.", "versions": [{"status": "affected", "version": "GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0"}]}], "descriptions": [{"lang": "en", "value": "Open redirect vulnerability in GroupSession (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0) allows a remote attacker to redirect a user to an arbitrary web site and conduct a phishing attack via a specially crafted URL."}], "problemTypes": [{"descriptions": [{"description": "Open Redirect", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-07-28T00:45:32.000Z", "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://groupsession.jp/info/info-news/security202107"}, {"tags": ["x_refsource_MISC"], "url": "https://jvn.jp/en/jp/JVN86026700/index.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "vultures@jpcert.or.jp", "ID": "CVE-2021-20789", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "GroupSession", "version": {"version_data": [{"version_value": "GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0"}]}}]}, "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 (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0) allows a remote attacker to redirect a user to an arbitrary web site and conduct a phishing attack via a specially crafted URL."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Open Redirect"}]}]}, "references": {"reference_data": [{"name": "https://groupsession.jp/info/info-news/security202107", "refsource": "MISC", "url": "https://groupsession.jp/info/info-news/security202107"}, {"name": "https://jvn.jp/en/jp/JVN86026700/index.html", "refsource": "MISC", "url": "https://jvn.jp/en/jp/JVN86026700/index.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:53:22.634Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://groupsession.jp/info/info-news/security202107"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jvn.jp/en/jp/JVN86026700/index.html"}]}]}, "cveMetadata": {"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "assignerShortName": "jpcert", "cveId": "CVE-2021-20789", "datePublished": "2021-07-28T00:45:32.000Z", "dateReserved": "2020-12-17T00:00:00.000Z", "dateUpdated": "2024-08-03T17:53:22.634Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "GroupSession", "vendor": "Japan Total System Co.,Ltd.", "versions": [{"status": "affected", "version": "GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0"}]}], "source": "vultures@jpcert.or.jp"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:groupsession:groupsession:*:*:*:*:free:*:*:*", "matchCriteriaId": "BCD711A0-12D3-4FC1-B1F3-084DD5D9721B", "versionEndExcluding": "5.1.0", "versionStartIncluding": "2.20", "vulnerable": true}, {"criteria": "cpe:2.3:a:groupsession:groupsession_bycloud:*:*:*:*:*:*:*:*", "matchCriteriaId": "20139ED3-424E-49EB-9D6D-9EAA356C0D96", "versionEndExcluding": "5.1.0", "versionStartIncluding": "3.0.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:groupsession:groupsession_zion:*:*:*:*:*:*:*:*", "matchCriteriaId": "9F38C4EF-470B-4C54-B57F-7C99AB59BF73", "versionEndExcluding": "5.1.0", "versionStartIncluding": "3.0.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Open redirect vulnerability in GroupSession (GroupSession Free edition from ver2.2.0 to the version prior to ver5.1.0, GroupSession byCloud from ver3.0.3 to the version prior to ver5.1.0, and GroupSession ZION from ver3.0.3 to the version prior to ver5.1.0) allows a remote attacker to redirect a user to an arbitrary web site and conduct a phishing attack via a specially crafted URL."}, {"lang": "es", "value": "Una vulnerabilidad de redirecci\u00f3n abierta en GroupSession (GroupSession Free edition desde versi\u00f3n 2.2.0 hasta versi\u00f3n anterior a ver5.1.0, GroupSession byCloud desde versi\u00f3n 3.0.3 hasta versi\u00f3n anterior a ver5.1.0, y GroupSession ZION desde versi\u00f3n 3.0.3 hasta versi\u00f3n anterior a ver5.1.0) permite a un atacante remoto redirigir a un usuario a un sitio web arbitrario y conducir un ataque de phishing por medio de una URL especialmente dise\u00f1ada"}], "id": "CVE-2021-20789", "lastModified": "2026-06-17T03:34:27.370", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"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, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"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, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-07-30T14:15:14.893", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Vendor Advisory"], "url": "https://groupsession.jp/info/info-news/security202107"}, {"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN86026700/index.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://groupsession.jp/info/info-news/security202107"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/jp/JVN86026700/index.html"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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