CVE-2021-3523

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{"affected": [{"affectedData": [{"product": "apicast", "vendor": "n/a", "versions": [{"status": "affected", "version": "3scale-apicast versions prior to 2.11.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:apicast:*:*:*:*:*:*:*:*", "matchCriteriaId": "348F0C03-6D7A-4E1E-B678-974B3A6C4D88", "versionEndExcluding": "2.11.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in 3Scale APICast in versions prior to 2.11.0, where it incorrectly identified connections for reuse. This flaw allows an attacker to bypass security restrictions for an API request when hosting multiple APIs on the same IP address."}, {"lang": "es", "value": "Se ha encontrado un fallo en 3Scale APICast en versiones anteriores a 2.11.0, donde son identificadas incorrectamente las conexiones para su reuso. Este fallo permite a un atacante omitir las restricciones de seguridad de una petici\u00f3n de API cuando son alojadas varias API en la misma direcci\u00f3n IP"}], "id": "CVE-2021-3523", "lastModified": "2026-06-17T04:05:17.550", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-04-27T21:15:08.287", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1954805"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1954805"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-281"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-281"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "apicast: permits auth bypass with connection reuse", "id": "1954805", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1954805"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-281", "details": ["A flaw was found in 3Scale APICast in versions prior to 2.11.0, where it incorrectly identified connections for reuse. This flaw allows an attacker to bypass security restrictions for an API request when hosting multiple APIs on the same IP address.", "A flaw was found in 3Scale APICast, where it incorrectly identified connections for reuse. This flaw allows an attacker to bypass security restrictions for an API request when hosting multiple APIs on the same IP address."], "name": "CVE-2021-3523", "package_state": [{"cpe": "cpe:/a:redhat:red_hat_3scale_amp:2", "fix_state": "Not affected", "package_name": "apicast", "product_name": "Red Hat 3scale API Management Platform 2"}], "public_date": "2022-04-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3523\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3523"], "threat_severity": "Moderate"}

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