CVE-2011-3187

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rubyonrails:rails:3.0.5:*:*:*:*:*:*:*", "matchCriteriaId": "392E2D58-CB39-4832-B4D9-9C2E23B8E14C", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The to_s method in actionpack/lib/action_dispatch/middleware/remote_ip.rb in Ruby on Rails 3.0.5 does not validate the X-Forwarded-For header in requests from IP addresses on a Class C network, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header."}, {"lang": "es", "value": "El m\u00e9todo to_s en actionpack/lib/action_dispatch/middleware/remote_ip.rb en Ruby on Rails v3.0.5 no valida la cabecera X-Forwarded-For de las peticiones de direcciones IP en una red de Clase C, lo que podr\u00eda permitir a atacantes remotos la ejecuci\u00f3n de documentos de texto en los archivos de registro o evitar an\u00e1lisis de direcciones intencionadas a trav\u00e9s de una cabecera modificada."}], "id": "CVE-2011-3187", "lastModified": "2026-06-16T23:32:49.797", "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}]}, "published": "2011-08-29T18:55:01.707", "references": [{"source": "secalert@redhat.com", "url": "http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html"}, {"source": "secalert@redhat.com", "tags": ["Exploit"], "url": "http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/17/1"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/19/11"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/20/1"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/22/13"}, {"source": "secalert@redhat.com", "tags": ["Exploit"], "url": "http://www.openwall.com/lists/oss-security/2011/08/22/14"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/22/5"}, {"source": "secalert@redhat.com", "tags": ["Exploit"], "url": "https://bugzilla.novell.com/show_bug.cgi?id=673010"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0337.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://webservsec.blogspot.com/2011/02/ruby-on-rails-vulnerability.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/17/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/19/11"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/20/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/22/13"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://www.openwall.com/lists/oss-security/2011/08/22/14"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2011/08/22/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://bugzilla.novell.com/show_bug.cgi?id=673010"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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