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"cpe:2.3:a:digium:asterisk:1.4.41.1:*:*:*:*:*:*:*", "matchCriteriaId": "0606F179-8817-4124-B92B-CD868B216320", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:1.4.41.2:*:*:*:*:*:*:*", "matchCriteriaId": "E93609A6-7FFD-4179-86E9-0D1292B035B8", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:1.4.42:*:*:*:*:*:*:*", "matchCriteriaId": "6E73DCA2-DEB0-4966-9822-26543E16A3D6", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:1.4.42:rc1:*:*:*:*:*:*", "matchCriteriaId": "310FFFE1-1400-498F-B576-FA76DCC382BB", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:1.4.42:rc2:*:*:*:*:*:*", "matchCriteriaId": "225DA4A0-CCAB-448E-8ED8-399D68C45CF0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The SIP over UDP implementation in Asterisk Open Source 1.4.x before 1.4.43, 1.6.x before 1.6.2.21, and 1.8.x before 1.8.7.2 uses different port numbers for responses to invalid requests depending on whether a SIP username exists, which allows remote attackers to enumerate usernames via a series of requests."}, {"lang": "es", "value": "La implementaci\u00f3n de SIP sobre UDP de Asterisk Open Source 1.4.x anteriores a 1.4.43, 1.6.x anteriores a 1.6.2.21, y 1.8.x anteriores a 1.8.7.2 utiliza diferentes n\u00fameros de puertos para respuestas a peticiones inv\u00e1lidas dependiendo de si el nombre de usuario SIP existe, lo que permite a atacantes remotos enumerar nombres de usuario a trav\u00e9s de series de peticiones."}], "id": "CVE-2011-4597", "lastModified": "2026-04-29T01:13:23.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-12-15T03:57:34.310", "references": [{"source": "secalert@redhat.com", "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0151.html"}, {"source": "secalert@redhat.com", "url": "http://downloads.asterisk.org/pub/security/AST-2011-013.html"}, {"source": "secalert@redhat.com", "url": "http://lists.digium.com/pipermail/asterisk-dev/2011-November/052191.html"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2011/12/09/3"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2011/12/09/4"}, {"source": "secalert@redhat.com", "url": "http://osvdb.org/77597"}, {"source": "secalert@redhat.com", "url": "http://secunia.com/advisories/47273"}, {"source": "secalert@redhat.com", "url": "http://www.debian.org/security/2011/dsa-2367"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0151.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://downloads.asterisk.org/pub/security/AST-2011-013.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.digium.com/pipermail/asterisk-dev/2011-November/052191.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2011/12/09/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2011/12/09/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/77597"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/47273"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2011/dsa-2367"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}