{ "CVE_data_meta" : { "ASSIGNER" : "cve@mitre.org", "ID" : "CVE-2017-11103", "STATE" : "PUBLIC" }, "affects" : { "vendor" : { "vendor_data" : [ { "product" : { "product_data" : [ { "product_name" : "n/a", "version" : { "version_data" : [ { "version_value" : "n/a" } ] } } ] }, "vendor_name" : "n/a" } ] } }, "data_format" : "MITRE", "data_type" : "CVE", "data_version" : "4.0", "description" : { "description_data" : [ { "lang" : "eng", "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." } ] }, "problemtype" : { "problemtype_data" : [ { "description" : [ { "lang" : "eng", "value" : "n/a" } ] } ] }, "references" : { "reference_data" : [ { "name" : "https://www.orpheus-lyre.info/", "refsource" : "MISC", "url" : "https://www.orpheus-lyre.info/" }, { "name" : "http://www.h5l.org/advisories.html?show=2017-07-11", "refsource" : "CONFIRM", "url" : "http://www.h5l.org/advisories.html?show=2017-07-11" }, { "name" : "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0", "refsource" : "CONFIRM", "url" : "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0" }, { "name" : "https://www.samba.org/samba/security/CVE-2017-11103.html", "refsource" : "CONFIRM", "url" : "https://www.samba.org/samba/security/CVE-2017-11103.html" }, { "name" : "https://support.apple.com/HT208112", "refsource" : "CONFIRM", "url" : "https://support.apple.com/HT208112" }, { "name" : "https://support.apple.com/HT208144", "refsource" : "CONFIRM", "url" : "https://support.apple.com/HT208144" }, { "name" : "https://support.apple.com/HT208221", "refsource" : "CONFIRM", "url" : "https://support.apple.com/HT208221" }, { "name" : "DSA-3912", "refsource" : "DEBIAN", "url" : "http://www.debian.org/security/2017/dsa-3912" }, { "name" : "FreeBSD-SA-17:05", "refsource" : "FREEBSD", "url" : "https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc" }, { "name" : "99551", "refsource" : "BID", "url" : "http://www.securityfocus.com/bid/99551" }, { "name" : "1038876", "refsource" : "SECTRACK", "url" : "http://www.securitytracker.com/id/1038876" }, { "name" : "1039427", "refsource" : "SECTRACK", "url" : "http://www.securitytracker.com/id/1039427" } ] } }