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This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder."}, {"lang": "es", "value": "Las implementaciones Realm en Apache Tomcat versiones 9.0.0.M1 a 9.0.0.M9, 8.5.0 a 8.5.4, 8.0.0.RC1 a 8.0.36, 7.0.0 a 7.0.70, y 6.0.0 a 6.0.45 no procesaban la contrase\u00f1a proporcionada si el nombre de usuario proporcionado no exist\u00eda. Esto hizo posible la realizaci\u00f3n de un ataque basado en tiempo para determinar nombres de usuario v\u00e1lidos. Tenga en cuenta que la configuraci\u00f3n por defecto incluye LockOutRealm, lo que hace que sea m\u00e1s dif\u00edcil explotar esta vulnerabilidad."}], "id": "CVE-2016-0762", "lastModified": "2026-06-17T00:38:10.410", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-08-10T16:29:00.313", "references": [{"source": "security@apache.org", "tags": ["Third Party Advisory"], "url": "http://rhn.redhat.com/errata/RHSA-2017-0457.html"}, {"source": "security@apache.org", "tags": ["Third Party Advisory"], "url": "http://www.debian.org/security/2016/dsa-3720"}, {"source": "security@apache.org", "tags": ["Broken Link"], "url": "http://www.securityfocus.com/bid/93939"}, {"source": "security@apache.org", "tags": ["Broken Link"], "url": "http://www.securitytracker.com/id/1037144"}, {"source": "security@apache.org", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:0455"}, {"source": "security@apache.org", "tags": ["Third Party Advisory"], "url": 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{"affected_release": [{"advisory": "RHSA-2017:2247", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "tomcat-0:7.0.76-2.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-08-01T00:00:00Z"}, {"advisory": "RHSA-2017:0457", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1", "product_name": "Red Hat JBoss Web Server 3.1", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "hibernate4-eap6-0:4.2.23-1.Final_redhat_1.1.ep6.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "jbcs-httpd24-0:1-3.jbcs.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "jbcs-httpd24-apache-commons-daemon-0:1.0.15-1.redhat_2.1.jbcs.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "jbcs-httpd24-apache-commons-daemon-jsvc-1:1.0.15-17.redhat_2.jbcs.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "mod_cluster-0:1.3.5-2.Final_redhat_2.1.ep7.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "tomcat7-0:7.0.70-16.ep7.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "tomcat8-0:8.0.36-17.ep7.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "tomcat-native-0:1.2.8-9.redhat_9.ep7.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0455", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el6", "package": "tomcat-vault-0:1.0.8-9.Final_redhat_2.1.ep7.el6", "product_name": "Red Hat JBoss Web Server 3 for RHEL 6", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "hibernate4-eap6-0:4.2.23-1.Final_redhat_1.1.ep6.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "jbcs-httpd24-0:1-3.jbcs.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "jbcs-httpd24-apache-commons-daemon-0:1.0.15-1.redhat_2.1.jbcs.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "jbcs-httpd24-apache-commons-daemon-jsvc-1:1.0.15-17.redhat_2.jbcs.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "mod_cluster-0:1.3.5-2.Final_redhat_2.1.ep7.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "tomcat7-0:7.0.70-16.ep7.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "tomcat8-0:8.0.36-17.ep7.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "tomcat-native-0:1.2.8-9.redhat_9.ep7.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}, {"advisory": "RHSA-2017:0456", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3.1::el7", "package": "tomcat-vault-0:1.0.8-9.Final_redhat_2.1.ep7.el7", "product_name": "Red Hat JBoss Web Server 3 for RHEL 7", "release_date": "2017-03-07T00:00:00Z"}], "bugzilla": {"description": "tomcat: timing attack in Realm implementation", "id": "1390526", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1390526"}, "csaw": false, "cvss": {"cvss_base_score": "2.6", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "status": "verified"}, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "verified"}, "details": ["The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.", "The Realm implementations did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder."], "name": "CVE-2016-0762", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "tomcat5", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "tomcat6", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_brms_platform:5", "fix_state": "Out of support scope", "package_name": "jbossweb", "product_name": "Red Hat JBoss BRMS 5"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:6", "fix_state": "Out of support scope", "package_name": "jbossweb", "product_name": "Red Hat JBoss Data Grid 6"}, {"cpe": "cpe:/a:redhat:jboss_data_virtualization:6", "fix_state": "Out of support scope", "package_name": "jbossweb", "product_name": "Red Hat JBoss Data Virtualization 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5", "fix_state": "Not affected", "package_name": "jbossweb", "product_name": "Red Hat JBoss Enterprise Application Platform 5"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:6", "fix_state": "Not affected", "package_name": "jbossweb", "product_name": "Red Hat JBoss Enterprise Application Platform 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:2", "fix_state": "Will not fix", "package_name": "tomcat6", "product_name": "Red Hat JBoss Enterprise Web Server 2"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:2", "fix_state": "Will not fix", "package_name": "tomcat7", "product_name": "Red Hat JBoss Enterprise Web Server 2"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3", "fix_state": "Fix deferred", "package_name": "tomcat7", "product_name": "Red Hat JBoss Enterprise Web Server 3"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3", "fix_state": "Fix deferred", "package_name": "tomcat8", "product_name": "Red Hat JBoss Enterprise Web Server 3"}, {"cpe": "cpe:/a:redhat:jboss_fuse:6", "fix_state": "Will not fix", "package_name": "jbossweb", "product_name": "Red Hat JBoss Fuse 6"}, {"cpe": "cpe:/a:redhat:jboss_fuse_service_works:6", "fix_state": "Out of support scope", "package_name": "jbossweb", "product_name": "Red Hat JBoss Fuse Service Works 6"}, {"cpe": "cpe:/a:redhat:jboss_operations_network:3", "fix_state": "Out of support scope", "package_name": "jbossweb", "product_name": "Red Hat JBoss Operations Network 3"}], "public_date": "2016-10-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-0762\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-0762\nhttps://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.47\nhttps://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.72\nhttps://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.5_and_8.0.37"], "threat_severity": "Low"}

{}