{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T09:56:59.353","vulnerabilities":[{"cve":{"id":"CVE-2011-4120","sourceIdentifier":"secalert@redhat.com","published":"2019-11-26T05:15:13.130","lastModified":"2024-11-21T01:31:53.250","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Yubico PAM Module before 2.10 performed user authentication when 'use_first_pass' PAM configuration option was not used and the module was configured as 'sufficient' in the PAM configuration. A remote attacker could use this flaw to circumvent common authentication process and obtain access to the account in question by providing a NULL value (pressing Ctrl-D keyboard sequence) as the password string."},{"lang":"es","value":"El módulo PAM de Yubico versiones anteriores a 2.10, realizó la autenticación del usuario cuando no se utilizó la opción de configuración PAM \"use_first_pass\" y el módulo fue configurado como \"sufficient\" en la configuración PAM. Un atacante remoto podría usar este fallo para omitir el proceso de autenticación común y conseguir acceso a la cuenta en cuestión al proporcionar un valor NULL (presionando la secuencia de teclado Ctrl-D) como la cadena de contraseña."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-20"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:yubico:pam_module:*:*:*:*:*:*:*:*","versionEndExcluding":"2.10","matchCriteriaId":"9D79AAA1-ECB9-40CB-BD2E-9ACA5BEEA33C"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*","matchCriteriaId":"703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","matchCriteriaId":"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"},{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"DEECE5FC-CACF-4496-A3E7-164736409252"},{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","matchCriteriaId":"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}]}]}],"references":[{"url":"https://access.redhat.com/security/cve/cve-2011-4120","source":"secalert@redhat.com","tags":["Broken Link","Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4120","source":"secalert@redhat.com","tags":["Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4120","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2011/11/07/6","source":"secalert@redhat.com","tags":["Mailing List","Third Party Advisory"]},{"url":"https://access.redhat.com/security/cve/cve-2011-4120","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Broken Link","Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4120","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4120","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2011/11/07/6","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]}]}}]}