CVE-2021-41101

{"containers": {"cna": {"affected": [{"product": "wire-server", "vendor": "wireapp", "versions": [{"status": "affected", "version": "< 2.106.0"}]}], "descriptions": [{"lang": "en", "value": "wire-server is an open-source back end for Wire, a secure collaboration platform. Before version 2.106.0, the CORS ` Access-Control-Allow-Origin ` header set by `nginz` is set for all subdomains of `.wire.com` (including `wire.com`). This means that if somebody were to find an XSS vector in any of the subdomains, they could use it to talk to the Wire API using the user's Cookie. A patch does not exist, but a workaround does. To make sure that a compromise of one subdomain does not yield access to the cookie of another, one may limit the `Access-Control-Allow-Origin` header to apps that actually require the cookie (account-pages, team-settings and the webapp)."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-09-30T19:20:09.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p"}], "source": {"advisory": "GHSA-v7xx-cx8m-g66p", "discovery": "UNKNOWN"}, "title": "CORS `Access-Control-Allow-Origin` settings are too lenient", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-41101", "STATE": "PUBLIC", "TITLE": "CORS `Access-Control-Allow-Origin` settings are too lenient"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "wire-server", "version": {"version_data": [{"version_value": "< 2.106.0"}]}}]}, "vendor_name": "wireapp"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "wire-server is an open-source back end for Wire, a secure collaboration platform. Before version 2.106.0, the CORS ` Access-Control-Allow-Origin ` header set by `nginz` is set for all subdomains of `.wire.com` (including `wire.com`). This means that if somebody were to find an XSS vector in any of the subdomains, they could use it to talk to the Wire API using the user's Cookie. A patch does not exist, but a workaround does. To make sure that a compromise of one subdomain does not yield access to the cookie of another, one may limit the `Access-Control-Allow-Origin` header to apps that actually require the cookie (account-pages, team-settings and the webapp)."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}]}, "references": {"reference_data": [{"name": "https://github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p", "refsource": "CONFIRM", "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p"}]}, "source": {"advisory": "GHSA-v7xx-cx8m-g66p", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T02:59:31.532Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-41101", "datePublished": "2021-09-30T19:20:09.000Z", "dateReserved": "2021-09-15T00:00:00.000Z", "dateUpdated": "2024-08-04T02:59:31.532Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "wire-server", "vendor": "wireapp", "versions": [{"status": "affected", "version": "< 2.106.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wire:wire_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "F3F6AEA8-A71A-4653-BEFB-6B1F0612A2BA", "versionEndExcluding": "2.106.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "wire-server is an open-source back end for Wire, a secure collaboration platform. Before version 2.106.0, the CORS ` Access-Control-Allow-Origin ` header set by `nginz` is set for all subdomains of `.wire.com` (including `wire.com`). This means that if somebody were to find an XSS vector in any of the subdomains, they could use it to talk to the Wire API using the user's Cookie. A patch does not exist, but a workaround does. To make sure that a compromise of one subdomain does not yield access to the cookie of another, one may limit the `Access-Control-Allow-Origin` header to apps that actually require the cookie (account-pages, team-settings and the webapp)."}, {"lang": "es", "value": "wire-server es un back end de c\u00f3digo abierto para Wire, una plataforma de colaboraci\u00f3n segura. Versiones anteriores a 2.106.0, el encabezado CORS \"Access-Control-Allow-Origin\" establecida por \"nginz\" se establece para todos los subdominios de \".wire.com\" (incluyendo \"wire.com\"). Esto significa que si alguien encontrara un vector de tipo XSS en cualquiera de los subdominios, podr\u00eda usarlo para hablar con la API de Wire usando la Cookie del usuario. No se presenta un parche, pero s\u00ed una soluci\u00f3n. Para asegurarse de que un compromiso de un subdominio no da acceso a la cookie de otro, es posible limitar el encabezado \"Access-Control-Allow-Origin\" a las aplicaciones que realmente requieren la cookie (account-pages, team-settings y la webapp)"}], "id": "CVE-2021-41101", "lastModified": "2026-06-17T04:07:52.710", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2021-09-30T20:15:07.587", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/wireapp/wire-server/security/advisories/GHSA-v7xx-cx8m-g66p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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