CVE-2017-12151

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The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack."}, {"lang": "es", "value": "Se ha encontrado un fallo en la forma en la que el cliente samba en versiones anteriores a samba 4.4.16, samba 4.5.14 y samba 4.6.8 utilizaba cifrado con el protocolo max establecido en SMB3. La conexi\u00f3n pod\u00eda perder el requisito de firmar y cifrar con cualquier redirecci\u00f3n DFS, lo que permit\u00eda a un atacante leer o alterar el contenido de la conexi\u00f3n mediante un ataque Man-in-the-Middle (MitM)."}], "id": "CVE-2017-12151", "lastModified": "2026-06-17T01:02:46.957", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-07-27T12:29:00.223", "references": [{"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/100917"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039401"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2790"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2858"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20170921-0001/"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_us"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3983"}, {"source": "secalert@redhat.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.samba.org/samba/security/CVE-2017-12151.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/100917"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039401"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2790"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2858"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12151"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20170921-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_us"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3983"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.samba.org/samba/security/CVE-2017-12151.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-300"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-310"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Samba project for reporting this issue. Upstream acknowledges Stefan Metzmacher (SerNet) as the original reporter.", "affected_release": [{"advisory": "RHSA-2017:2790", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "samba-0:4.6.2-11.el7_4", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-09-21T00:00:00Z"}, {"advisory": "RHSA-2017:2858", "cpe": "cpe:/a:redhat:storage:3.3:samba:el6", "package": "samba-0:4.6.3-6.el6rhs", "product_name": "Red Hat Gluster Storage 3.3 for RHEL 6", "release_date": "2017-10-04T00:00:00Z"}, {"advisory": "RHSA-2017:2858", "cpe": "cpe:/a:redhat:storage:3.3:samba:el7", "package": "samba-0:4.6.3-6.el7rhgs", "product_name": "Red Hat Gluster Storage 3.3 for RHEL 7", "release_date": "2017-10-04T00:00:00Z"}], "bugzilla": {"description": "samba: SMB2 connections don't keep encryption across DFS redirects", "id": "1488197", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1488197"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-300", "details": ["A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.", "A flaw was found in the way samba client used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack."], "mitigation": {"lang": "en:us", "value": "Keep the default of \"client max protocol = NT1\"."}, "name": "CVE-2017-12151", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "samba3x", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "samba4", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2017-09-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-12151\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-12151\nhttps://www.samba.org/samba/security/CVE-2017-12151.html"], "statement": "The samba4 package in Red Hat Enterprise Linux 6, is a tech preview and by default uses the SMB1 protocol, therefore though affected by this flaw, will not be addressed in a security update.", "threat_severity": "Moderate"}

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