CVE-2021-22881

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{"affected": [{"affectedData": [{"product": "https://github.com/rails/rails", "vendor": "n/a", "versions": [{"status": "affected", "version": "Fixed in 6.1.2.1, 6.0.3.5"}]}], "source": "support@hackerone.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*", "matchCriteriaId": "817BE0F5-136C-460E-816D-74B3F6663BA8", "versionEndExcluding": "6.0.3.5", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*", "matchCriteriaId": "98CE6993-089E-454B-8156-011E03FC3C94", "versionEndExcluding": "6.1.2.1", "versionStartIncluding": "6.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website."}, {"lang": "es", "value": "El middleware de Autorizaci\u00f3n de Host en Action Pack versiones anteriores a 6.1.2.1, 6.0.3.5 sufre una vulnerabilidad de redireccionamiento abierto. Los encabezados \"Host\" especialmente dise\u00f1ados en combinaci\u00f3n con determinados formatos \"allowed host\" pueden causar que el middleware de Autorizaci\u00f3n del Host en Action Pack redireccione a los usuarios a un sitio web malicioso. Las aplicaciones afectadas habr\u00e1n permitido hosts con un punto inicial. Cuando un host permitido contiene un punto inicial, un encabezado \"Host\" especialmente dise\u00f1ado puede ser usado para redireccionar hacia un sitio web malicioso"}], "id": "CVE-2021-22881", "lastModified": "2026-06-17T03:37:56.390", "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": "2021-02-11T18:15:17.460", "references": [{"source": "support@hackerone.com", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/05/05/2"}, {"source": "support@hackerone.com", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/08/20/1"}, {"source": "support@hackerone.com", "tags": ["Exploit", "Mailing List", "Patch"], "url": "http://www.openwall.com/lists/oss-security/2021/12/14/5"}, {"source": "support@hackerone.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization/"}, {"source": "support@hackerone.com", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "url": "https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130"}, {"source": "support@hackerone.com", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://hackerone.com/reports/1047447"}, {"source": "support@hackerone.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/05/05/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/08/20/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mailing List", "Patch"], "url": "http://www.openwall.com/lists/oss-security/2021/12/14/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "url": "https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://hackerone.com/reports/1047447"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "support@hackerone.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-601"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "rubygem-actionpack: open redirect vulnerability may lead to confidentiality and integrity compromise", "id": "1930211", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930211"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-601", "details": ["The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website.", "The Host Authorization middleware in Action Pack suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website."], "name": "CVE-2021-22881", "package_state": [{"cpe": "cpe:/a:redhat:cloudforms_managementengine:5", "fix_state": "Will not fix", "package_name": "rubygem-actionpack", "product_name": "CloudForms Management Engine 5"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "package_name": "tfm-ror52-rubygem-actionpack", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "package_name": "tfm-rubygem-actionpack", "product_name": "Red Hat Satellite 6"}], "public_date": "2021-02-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-22881\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-22881\nhttps://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130"], "statement": "Red Hat Satellite does not make use of the config.hosts setting and is not affected by this CVE.", "threat_severity": "Moderate"}

{}