{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-38475", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2024-06-17T11:09:56.096Z", "datePublished": "2024-07-01T18:15:12.292Z", "dateUpdated": "2025-07-30T01:36:38.214Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Apache HTTP Server", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "2.4.59", "status": "affected", "version": "2.4.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Orange Tsai (@orange_8361) from DEVCORE"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are&nbsp;permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. <br><br>Substitutions in&nbsp;server context that use a backreferences or variables as the first segment of the substitution are affected.&nbsp; 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{"cisaActionDue": "2025-05-22", "cisaExploitAdd": "2025-05-01", "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Apache HTTP Server Improper Escaping of Output Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "13126636-FD76-4E3E-B949-14A5082DE02A", "versionEndExcluding": "2.4.60", "versionStartIncluding": "2.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:netapp:ontap_9:-:*:*:*:*:*:*:*", "matchCriteriaId": "AD886814-B4A0-4764-9F08-2060601D8E89", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are\u00a0permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. \n\nSubstitutions in\u00a0server context that use a backreferences or variables as the first segment of the substitution are affected.\u00a0 Some unsafe RewiteRules will be broken by this change and the rewrite flag \"UnsafePrefixStat\" can be used to opt back in once ensuring the substitution is appropriately constrained."}, {"lang": "es", "value": "El escape inadecuado de la salida en mod_rewrite en Apache HTTP Server 2.4.59 y versiones anteriores permite a un atacante asignar URL a ubicaciones del sistema de archivos que el servidor permite servir, pero a las que no se puede acceder intencional o directamente mediante ninguna URL, dando como resultado la ejecuci\u00f3n del c\u00f3digo o la divulgaci\u00f3n del c\u00f3digo fuente. Las sustituciones en el contexto del servidor que utilizan referencias inversas o variables como primer segmento de la sustituci\u00f3n se ven afectadas. Este cambio romper\u00e1 algunas RewiteRules inseguras y el indicador de reescritura \"UnsafePrefixStat\" se puede usar para volver a participar una vez que se garantice que la sustituci\u00f3n est\u00e9 restringida adecuadamente."}], "id": "CVE-2024-38475", "lastModified": "2025-05-02T15:43:59.747", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "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:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-07-01T19:15:04.883", "references": [{"source": "security@apache.org", "tags": ["Vendor Advisory"], "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}, {"source": "security@apache.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20240712-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2024/07/01/8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20240712-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-exploiting-hidden-semantic-ambiguity-in-apache-http-server-pre-recorded-40227"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-116"}], "source": "security@apache.org", "type": "Secondary"}]}

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"cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "httpd:2.4-8060020240719220036.ad008a3a", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2024-07-24T00:00:00Z"}, {"advisory": "RHSA-2024:4719", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "httpd:2.4-8080020240717184413.63b34585", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-07-23T00:00:00Z"}, {"advisory": "RHSA-2024:4726", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "httpd-0:2.4.57-11.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-07-23T00:00:00Z"}, {"advisory": "RHSA-2024:4863", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "httpd-0:2.4.51-7.el9_0.7", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2024-07-25T00:00:00Z"}, {"advisory": "RHSA-2024:4862", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "httpd-0:2.4.53-11.el9_2.8", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-25T00:00:00Z"}, {"advisory": "RHSA-2024:5240", "cpe": "cpe:/a:redhat:jboss_core_services:1", "package": "jbcs-httpd24-httpd", "product_name": "Text-Only JBCS", "release_date": "2024-08-13T00:00:00Z"}], "bugzilla": {"description": "httpd: Improper escaping of output in mod_rewrite", "id": "2295014", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2295014"}, "csaw": true, "cvss3": {"cvss3_base_score": "9.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-116", "details": ["Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are\u00a0permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. \nSubstitutions in\u00a0server context that use a backreferences or variables as the first segment of the substitution are affected.\u00a0 Some unsafe RewiteRules will be broken by this change and the rewrite flag \"UnsafePrefixStat\" can be used to opt back in once ensuring the substitution is appropriately constrained.", "A flaw was found in the mod_rewrite module of httpd. Improper escaping of output allows an attacker to map URLs to filesystem locations permitted to be served by the server but are not intentionally or directly reachable by any URL. This issue results in code execution or source code disclosure."], "mitigation": {"lang": "en:us", "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}, "name": "CVE-2024-38475", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2024-07-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-38475\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-38475\nhttps://httpd.apache.org/security/vulnerabilities_24.html#CVE-2024-38475\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "statement": "This issue affects configurations with substitution rules used in the RewriteRule directive using backreferences or variables as the first segment of the substitution.\nAdditionally, this flaw requires mod_rewrite to be loaded and used. This module can be disabled if its functionality is not needed.\nRed Hat Enterprise Linux 6 is not affected by this vulnerability because the vulnerable code was introduced in a newer version of httpd.", "threat_severity": "Important"}

{}