CVE-2017-11103

{"id": "CVE-2017-11103", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "published": "2017-07-13T13:29:00.173", "references": [{"url": "http://www.debian.org/security/2017/dsa-3912", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.h5l.org/advisories.html?show=2017-07-11", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/99551", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1038876", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1039427", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://support.apple.com/HT208112", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://support.apple.com/HT208144", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://support.apple.com/HT208221", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.orpheus-lyre.info/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.samba.org/samba/security/CVE-2017-11103.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2017/dsa-3912", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.h5l.org/advisories.html?show=2017-07-11", "tags": ["Broken Link"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/99551", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1038876", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securitytracker.com/id/1039427", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.apple.com/HT208112", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.apple.com/HT208144", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://support.apple.com/HT208221", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.orpheus-lyre.info/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.samba.org/samba/security/CVE-2017-11103.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-345"}]}], "descriptions": [{"lang": "en", "value": "Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in 'enc_part' instead of the unencrypted version stored in 'ticket'. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated."}, {"lang": "es", "value": "Heimdal en versiones anteriores a la 7.4 permite que atacantes remotos suplanten servicios con ataques Orpheus' Lyre ya que obtiene nombres de servicios principales, de manera que viola la especificaci\u00f3n del protocolo Kerberos 5. En _krb5_extract_ticket() el nombre del servicio KDC-REP se debe obtener de la versi\u00f3n cifrada almacenada en 'enc_part' en lugar de la versi\u00f3n sin cifrar almacenada en 'ticket'. El uso de versiones sin cifrar supone una oportunidad para que se lleve a cabo una suplantaci\u00f3n del servidor exitosa adem\u00e1s de otros ataques. NOTA: este CVE solo es aplicable a Heimdal y otros productos que embeben c\u00f3digo Heimdal."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBB557FB-2D64-4B67-ABB4-232B8532E9F7", "versionEndExcluding": "7.4.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3B2AEFCC-A2F6-45A6-A2EF-24F7906E44E2"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4D6C6EB-04EC-4514-947F-37DA23C07BD1", "versionEndExcluding": "4.4.15", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C93F9D32-8BFD-484B-8D16-6A440132A4E3", "versionEndExcluding": "4.5.12", "versionStartIncluding": "4.5.0"}, {"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92EBC874-FF91-47E4-B57D-A54DF0859239", "versionEndExcluding": "4.6.6", "versionStartIncluding": "4.6.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17CE3EBB-FF76-4158-81FE-63AECECA988E", "versionEndExcluding": "11.0"}, {"criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C43CA59D-847F-4225-A7A6-02DEB1BB4F64", "versionEndExcluding": "10.13.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}