{"containers": {"cna": {"affected": [{"product": "Jenkins CAS Plugin", "vendor": "Jenkins project", "versions": [{"lessThanOrEqual": "1.6.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Jenkins CAS Plugin 1.6.0 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins, allowing attackers to perform phishing attacks."}], "providerMetadata": {"orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "shortName": "jenkins", "dateUpdated": "2023-10-24T15:51:41.989Z"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387"}, {"name": "[oss-security] 20210630 Multiple vulnerabilities in Jenkins and Jenkins plugins", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "jenkinsci-cert@googlegroups.com", "ID": "CVE-2021-21673", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Jenkins CAS Plugin", "version": {"version_data": [{"version_affected": "<=", "version_value": "1.6.0"}]}}]}, "vendor_name": "Jenkins project"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Jenkins CAS Plugin 1.6.0 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins, allowing attackers to perform phishing attacks."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')"}]}]}, "references": {"reference_data": [{"name": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387", "refsource": "CONFIRM", "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387"}, {"name": "[oss-security] 20210630 Multiple vulnerabilities in Jenkins and Jenkins plugins", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:23:29.200Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387"}, {"name": "[oss-security] 20210630 Multiple vulnerabilities in Jenkins and Jenkins plugins", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"}]}]}, "cveMetadata": {"assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "assignerShortName": "jenkins", "cveId": "CVE-2021-21673", "datePublished": "2021-06-30T16:45:20.000Z", "dateReserved": "2021-01-04T00:00:00.000Z", "dateUpdated": "2024-08-03T18:23:29.200Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Jenkins CAS Plugin", "vendor": "Jenkins project", "versions": [{"lessThanOrEqual": "1.6.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "jenkinsci-cert@googlegroups.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:jenkins:cas:*:*:*:*:*:jenkins:*:*", "matchCriteriaId": "9F3E362D-3518-4D3B-9815-A2AAF7899231", "versionEndIncluding": "1.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Jenkins CAS Plugin 1.6.0 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins, allowing attackers to perform phishing attacks."}, {"lang": "es", "value": "Jenkins CAS Plugin versiones 1.6.0 y anteriores determina inapropiadamente que una URL de redireccionamiento despu\u00e9s del inicio de sesi\u00f3n est\u00e1 apuntando leg\u00edtimamente a Jenkins, permitiendo a atacantes llevar a cabo ataques de phishing"}], "id": "CVE-2021-21673", "lastModified": "2026-06-17T03:35:58.460", "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": "2021-06-30T17:15:09.160", "references": [{"source": "jenkinsci-cert@googlegroups.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"}, {"source": "jenkinsci-cert@googlegroups.com", "tags": ["Vendor Advisory"], "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387"}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com", "vulnStatus": "Modified"}

{}

{}