{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-56337", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2024-12-20T11:16:29.949Z", "datePublished": "2024-12-20T15:28:54.738Z", "dateUpdated": "2025-01-03T12:04:31.817Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Apache Tomcat", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "11.0.1", "status": "affected", "version": "11.0.0-M1", "versionType": "semver"}, {"lessThanOrEqual": "10.1.33", "status": "affected", "version": "10.1.0-M1", "versionType": "semver"}, {"lessThanOrEqual": "9.0.97", "status": "affected", "version": "9.0.0.M1", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "This vulnerability was first reported by Nacl, WHOAMI, Yemoli and Ruozhi."}, {"lang": "en", "type": "finder", "value": "This vulnerability was independently reported with a very helpful PoC by dawu@knownsec 404 team and Sunflower@knownsec 404 team"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.</p><p>This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.</p><p>The mitigation for CVE-2024-50379 was incomplete.</p><p>Users running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation \nparameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:<br>- running on Java 8 or Java 11: the system property&nbsp;sun.io.useCanonCaches must be explicitly set to false (it defaults to true)<br>- running on Java 17: the&nbsp;system property sun.io.useCanonCaches, if set, must be set to false&nbsp;(it defaults to false)<br>- running on Java 21 onwards: no further configuration is required&nbsp;(the system property and the problematic cache have been removed)</p><p><span style=\"background-color: var(--wht);\">Tomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that&nbsp;sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. 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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.\n\nThe mitigation for CVE-2024-50379 was incomplete.\n\nUsers running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation \nparameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:\n- running on Java 8 or Java 11: the system property\u00a0sun.io.useCanonCaches must be explicitly set to false (it defaults to true)\n- running on Java 17: the\u00a0system property sun.io.useCanonCaches, if set, must be set to false\u00a0(it defaults to false)\n- running on Java 21 onwards: no further configuration is required\u00a0(the system property and the problematic cache have been removed)\n\nTomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that\u00a0sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set\u00a0sun.io.useCanonCaches to false by default where it can."}, {"lang": "es", "value": "Vulnerabilidad de condici\u00f3n de ejecuci\u00f3n de tiempo de uso y tiempo de verificaci\u00f3n (TOCTOU) en Apache Tomcat. Este problema afecta a Apache Tomcat: desde 11.0.0-M1 hasta 11.0.1, desde 10.1.0-M1 hasta 10.1.33, desde 9.0.0.M1 hasta 9.0.97. La mitigaci\u00f3n de CVE-2024-50379 fue incompleta. Los usuarios que ejecuten Tomcat en un sistema de archivos que no distinga entre may\u00fasculas y min\u00fasculas con la escritura del servlet predeterminada habilitada (el par\u00e1metro de inicializaci\u00f3n de solo lectura establecido en el valor no predeterminado de falso) pueden necesitar una configuraci\u00f3n adicional para mitigar por completo CVE-2024-50379 seg\u00fan la versi\u00f3n de Java que est\u00e9n usando con Tomcat: - ejecut\u00e1ndose en Java 8 o Java 11: la propiedad del sistema sun.io.useCanonCaches debe establecerse expl\u00edcitamente en falso (el valor predeterminado es verdadero) - ejecut\u00e1ndose en Java 17: la propiedad del sistema sun.io.useCanonCaches, si est\u00e1 establecida, debe establecerse en falso (el valor predeterminado es falso) - ejecut\u00e1ndose en Java 21 en adelante: no se requiere ninguna configuraci\u00f3n adicional (la propiedad del sistema y el cach\u00e9 problem\u00e1tico se han eliminado) Tomcat 11.0.3, 10.1.35 y 9.0.99 en adelante incluir\u00e1n comprobaciones de que sun.io.useCanonCaches est\u00e9 configurado correctamente antes de permitir que el servlet predeterminado est\u00e9 habilitado para escritura en un sistema de archivos que no distinga entre may\u00fasculas y min\u00fasculas. Tomcat tambi\u00e9n establecer\u00e1 sun.io.useCanonCaches como falso de forma predeterminada cuando sea posible."}], "id": "CVE-2024-56337", "lastModified": "2025-01-03T12:15:26.787", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-12-20T16:15:24.260", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread/b2b9qrgjrz1kvo4ym8y2wkfdvwoq6qbp"}, {"source": "security@apache.org", "url": "https://www.cve.org/CVERecord?id=CVE-2024-50379"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20250103-0002/"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "security@apache.org", "type": "Secondary"}]}

{"bugzilla": {"description": "tomcat: Incomplete fix for CVE-2024-50379 - RCE due to TOCTOU issue in JSP compilation", "id": "2333521", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2333521"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-367", "details": ["Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.\nThe mitigation for CVE-2024-50379 was incomplete.\nUsers running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation \nparameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:\n- running on Java 8 or Java 11: the system property\u00a0sun.io.useCanonCaches must be explicitly set to false (it defaults to true)\n- running on Java 17: the\u00a0system property sun.io.useCanonCaches, if set, must be set to false\u00a0(it defaults to false)\n- running on Java 21 onwards: no further configuration is required\u00a0(the system property and the problematic cache have been removed)\nTomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that\u00a0sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set\u00a0sun.io.useCanonCaches to false by default where it can.", "The fix for CVE-2024-50379 in Apache Tomcat was insufficient to mitigate the issue fully. A Time-of-check Time-of-use (TOCTOU) race condition occurs during JSP compilation on case-insensitive file systems when the default servlet is enabled for writing. This vulnerability allows an uploaded file to be treated as a JSP and executed, resulting in remote code execution."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-56337", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "tomcat6", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "pki-deps:10.6/pki-servlet-engine", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "pki-servlet-engine", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "tomcat", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:5", "fix_state": "Affected", "package_name": "tomcat", "product_name": "Red Hat JBoss Web Server 5"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:6", "fix_state": "Affected", "package_name": "tomcat", "product_name": "Red Hat JBoss Web Server 6"}], "public_date": "2024-12-20T15:28:54Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56337\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56337\nhttps://lists.apache.org/thread/b2b9qrgjrz1kvo4ym8y2wkfdvwoq6qbp\nhttps://www.cve.org/CVERecord?id=CVE-2024-50379"], "statement": "This vulnerability marked as Important rather than Moderate due to its potential to allow Remote Code Execution (RCE) when specific conditions are met, such as running on a case-insensitive file system with a misconfigured default servlet (`readonly=false`). RCE vulnerabilities are particularly important because they allow attackers to execute arbitrary code on the server, potentially compromising the confidentiality, integrity, and availability of the system. Additionally, the dependency on file system behavior and Java runtime configurations adds complexity to mitigation, increasing the likelihood of exploitation in misconfigured environments.\nThe default `readonly` initialization parameter value is `true` and not vulnerable to this issue.\nThe Tomcat package as shipped in Red Hat Enterprise Linux 6 and 7 is not affected by this vulnerability because the vulnerable code was introduced in a newer Tomcat version.", "threat_severity": "Important"}