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products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated. NOTE: it could be argued that this is a design limitation of the Net::HTTPS API, and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However, because this API was modified within LWP, a single CVE identifier has been assigned."}, {"lang": "es", "value": "La Red:: El m\u00f3dulo HTTPS en libwww-perl (LWP) antes de la v6.00, como los utilizados en WWW:: Mechanize, LWP:: UserAgent, y otros productos, cuando se ejecuta en entornos que no establecen la cabecera If-ssl-cert-Subject , no permite la plena validaci\u00f3n de certificados SSL de forma predeterminada, que permite a atacantes remotos suplantar a servidoresa trav\u00e9s de ataques de hombre en el mediocon nombres que no est\u00e1n debidamente validados. NOTA: se podr\u00eda argumentar que se trata de una limitaci\u00f3n de dise\u00f1o de la Red:: HTTPS API, e implementaciones separadas deber\u00edan tener asignadas independientemente identificadores CVE para no tener esta limitaci\u00f3n. Sin embargo, debido a que esta API fue modificada con LWP, se les asigna un solo identificador CVE."}], "id": "CVE-2011-0633", "lastModified": "2026-04-29T01:13:23.040", "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": "2011-05-13T22:55:01.610", "references": [{"source": "cve@mitre.org", "url": "http://cpansearch.perl.org/src/GAAS/libwww-perl-6.02/Changes"}, {"source": "cve@mitre.org", "url": "http://vttynotes.blogspot.com/2010/12/man-in-middle-fun-with-perl-lwp.html"}, {"source": "cve@mitre.org", "url": "http://vttynotes.blogspot.com/2011/03/quick-note-on-lwp-and-perl-security-cve.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://cpansearch.perl.org/src/GAAS/libwww-perl-6.02/Changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://vttynotes.blogspot.com/2010/12/man-in-middle-fun-with-perl-lwp.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://vttynotes.blogspot.com/2011/03/quick-note-on-lwp-and-perl-security-cve.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "perl-libwww-perl: no hostname check against SSL certificate name by default", "id": "705044", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=705044"}, "csaw": false, "cvss": {"cvss_base_score": "5.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "status": "draft"}, "details": ["The Net::HTTPS module in libwww-perl (LWP) before 6.00, as used in WWW::Mechanize, LWP::UserAgent, and other products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated. NOTE: it could be argued that this is a design limitation of the Net::HTTPS API, and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However, because this API was modified within LWP, a single CVE identifier has been assigned."], "name": "CVE-2011-0633", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Will not fix", "package_name": "perl-libwww-perl", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "perl-libwww-perl", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "perl-libwww-perl", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2011-03-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-0633\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-0633"], "threat_severity": "Moderate"}

{}