CVE-2023-40593

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{"affected": [{"affectedData": [{"product": "Splunk Enterprise", "vendor": "Splunk", "versions": [{"lessThan": "8.2.12", "status": "affected", "version": "8.2", "versionType": "custom"}, {"lessThan": "9.0.6", "status": "affected", "version": "9.0", "versionType": "custom"}]}, {"product": "Splunk Cloud", "vendor": "Splunk", "versions": [{"lessThan": "9.0.2205", "status": "affected", "version": "-", "versionType": "custom"}]}], "source": "prodsec@splunk.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "21F6F824-393F-424F-85DF-CD3FCB40452F", "versionEndExcluding": "8.2.12", "versionStartIncluding": "8.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "74A23E71-6A34-48A5-8087-B626BED870E0", "versionEndExcluding": "9.0.6", "versionStartIncluding": "9.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*", "matchCriteriaId": "A2A0FF7F-1171-42D4-A27B-689541F4BC32", "versionEndIncluding": "9.0.2305.100", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Splunk Enterprise versions lower than 9.0.6 and 8.2.12, a malicious actor can send a malformed security assertion markup language (SAML) request to the `/saml/acs` REST endpoint which can cause a denial of service through a crash or hang of the Splunk daemon."}, {"lang": "es", "value": "En las versiones de Splunk Enterprise inferiores a la 9.0.6 y 8.2.12, un actor malicioso puede enviar una solicitud de Security Assertion Markup Language (SAML) malformada al endpoint REST `/saml/acs`, lo que puede causar una denegaci\u00f3n de servicio a trav\u00e9s de un fallo o bloqueo del demonio de Splunk."}], "id": "CVE-2023-40593", "lastModified": "2026-06-17T06:18:37.693", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.0, "source": "prodsec@splunk.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-08-30T17:15:09.853", "references": [{"source": "prodsec@splunk.com", "tags": ["Vendor Advisory"], "url": "https://advisory.splunk.com/advisories/SVD-2023-0802"}, {"source": "prodsec@splunk.com", "tags": ["Vendor Advisory"], "url": "https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://advisory.splunk.com/advisories/SVD-2023-0802"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6/"}], "sourceIdentifier": "prodsec@splunk.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "prodsec@splunk.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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