CVE-2024-42353

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{"affected": [{"affectedData": [{"product": "webob", "vendor": "Pylons", "versions": [{"status": "affected", "version": "<= 1.8.7"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pylonsproject:webob:*:*:*:*:*:*:*:*", "matchCriteriaId": "7C7C7DB3-3268-4761-83C0-8A0C03A4451D", "versionEndExcluding": "1.8.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "WebOb provides objects for HTTP requests and responses. When WebOb normalizes the HTTP Location header to include the request hostname, it does so by parsing the URL that the user is to be redirected to with Python's urlparse, and joining it to the base URL. `urlparse` however treats a `//` at the start of a string as a URI without a scheme, and then treats the next part as the hostname. `urljoin` will then use that hostname from the second part as the hostname replacing the original one from the request. This vulnerability is patched in WebOb version 1.8.8."}, {"lang": "es", "value": "WebOb proporciona objetos para solicitudes y respuestas HTTP. Cuando WebOb normaliza el encabezado de Ubicaci\u00f3n HTTP para incluir el nombre de host de la solicitud, lo hace analizando la URL a la que se redirigir\u00e1 al usuario con urlparse de Python y uni\u00e9ndola a la URL base. Sin embargo, `urlparse` trata un `//` al comienzo de una cadena como un URI sin un esquema, y luego trata la siguiente parte como el nombre de host. `urljoin` luego usar\u00e1 ese nombre de host de la segunda parte como nombre de host reemplazando el original de la solicitud. Esta vulnerabilidad est\u00e1 parcheada en WebOb versi\u00f3n 1.8.8."}], "id": "CVE-2024-42353", "lastModified": "2026-06-17T07:49:18.797", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-42353", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-08-15T14:02:15.377428Z", "version": "2.0.3"}}]}, "published": "2024-08-14T21:15:17.073", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/Pylons/webob/commit/f689bcf4f0a1f64f1735b1d5069aef5be6974b5b"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/Pylons/webob/security/advisories/GHSA-mg3v-6m49-jhp3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-601"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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When WebOb normalizes the HTTP Location header to include the request hostname, it does so by parsing the URL that the user is to be redirected to with Python's urlparse, and joining it to the base URL. `urlparse` however treats a `//` at the start of a string as a URI without a scheme, and then treats the next part as the hostname. `urljoin` will then use that hostname from the second part as the hostname replacing the original one from the request. This vulnerability is patched in WebOb version 1.8.8.", "A vulnerability was found in the WebOb package. WebOb normalizes the HTTP Location header using urlparse and urljoin. If the URL starts with //, urlparse treats the following part as the hostname, and replaces the original request's hostname. This issue, combined with user interaction, may become a vulnerability."], "mitigation": {"lang": "en:us", "value": "If the Response class is used, any HTTP Location header (i.e. location) can be rewritten so that it always passes a full URI that includes the hostname to redirect the user to."}, "name": "CVE-2024-42353", "package_state": [{"cpe": "cpe:/a:redhat:ceph_storage:4", "fix_state": "Out of support scope", "package_name": "python-webob", "product_name": "Red Hat Ceph Storage 4"}, {"cpe": "cpe:/a:redhat:ceph_storage:5", "fix_state": "Affected", "package_name": "python-webob", "product_name": "Red Hat Ceph Storage 5"}, {"cpe": "cpe:/a:redhat:ceph_storage:6", "fix_state": "Affected", "package_name": "python-webob", "product_name": "Red Hat Ceph Storage 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "python-webob", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "python-webob", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:openshift_container_storage:4", "fix_state": "Affected", "package_name": "python-webob", "product_name": "Red Hat Openshift Container Storage 4"}, {"cpe": "cpe:/a:redhat:openstack:16.1", "fix_state": "Out of support scope", "package_name": "python-webob", "product_name": "Red Hat OpenStack Platform 16.1"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Affected", "package_name": "python-webob", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}], "public_date": "2024-08-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-42353\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-42353\nhttps://github.com/Pylons/webob\nhttps://github.com/Pylons/webob/commit/f689bcf4f0a1f64f1735b1d5069aef5be6974b5b\nhttps://github.com/Pylons/webob/security/advisories/GHSA-mg3v-6m49-jhp3"], "threat_severity": "Moderate"}

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