cve-2017-11103
Vulnerability from cvelistv5
Published
2017-07-13 13:00
Modified
2024-08-05 17:57
Severity ?
Summary
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.
References
cve@mitre.orghttp://www.debian.org/security/2017/dsa-3912Third Party Advisory
cve@mitre.orghttp://www.h5l.org/advisories.html?show=2017-07-11Broken Link
cve@mitre.orghttp://www.securityfocus.com/bid/99551Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id/1038876Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id/1039427Third Party Advisory, VDB Entry
cve@mitre.orghttps://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0Release Notes
cve@mitre.orghttps://support.apple.com/HT208112Third Party Advisory
cve@mitre.orghttps://support.apple.com/HT208144Third Party Advisory
cve@mitre.orghttps://support.apple.com/HT208221Third Party Advisory
cve@mitre.orghttps://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.ascThird Party Advisory
cve@mitre.orghttps://www.orpheus-lyre.info/Third Party Advisory
cve@mitre.orghttps://www.samba.org/samba/security/CVE-2017-11103.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2017/dsa-3912Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.h5l.org/advisories.html?show=2017-07-11Broken Link
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99551Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038876Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039427Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0Release Notes
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/HT208112Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/HT208144Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/HT208221Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.ascThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.orpheus-lyre.info/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.samba.org/samba/security/CVE-2017-11103.htmlThird Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-345\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-11103\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-07-13T13:29:00.173\",\"lastModified\":\"2024-11-21T03:07:06.110\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus\u0027 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 \u0027enc_part\u0027 instead of the unencrypted version stored in \u0027ticket\u0027. 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\u0027 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 \u0027enc_part\u0027 en lugar de la versi\u00f3n sin cifrar almacenada en \u0027ticket\u0027. 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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:P/A:P\",\"baseScore\":6.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"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-345\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"7.4.0\",\"matchCriteriaId\":\"BBB557FB-2D64-4B67-ABB4-232B8532E9F7\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:freebsd:freebsd:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3B2AEFCC-A2F6-45A6-A2EF-24F7906E44E2\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.0.0\",\"versionEndExcluding\":\"4.4.15\",\"matchCriteriaId\":\"F4D6C6EB-04EC-4514-947F-37DA23C07BD1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5.0\",\"versionEndExcluding\":\"4.5.12\",\"matchCriteriaId\":\"C93F9D32-8BFD-484B-8D16-6A440132A4E3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.6.0\",\"versionEndExcluding\":\"4.6.6\",\"matchCriteriaId\":\"92EBC874-FF91-47E4-B57D-A54DF0859239\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"11.0\",\"matchCriteriaId\":\"17CE3EBB-FF76-4158-81FE-63AECECA988E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.13.1\",\"matchCriteriaId\":\"C43CA59D-847F-4225-A7A6-02DEB1BB4F64\"}]}]},{\"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\":\"http://www.debian.org/security/2017/dsa-3912\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third 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  }
}


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