cve-2018-5738
Vulnerability from cvelistv5
Published
2019-01-16 20:00
Modified
2024-09-16 22:20
Summary
Some versions of BIND can improperly permit recursive query service to unauthorized clients
Impacted products
ISCBIND 9
Show details on NVD website


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          "versions": [
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              "version": "9.9.12, 9.10.7, 9.11.3, 9.12.0-\u003e9.12.1-P2, the development release 9.13.0, and also releases 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, and 9.11.3-S2 from BIND 9 Supported Preview Edition."
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          "value": "ISC would like to thank Andrew Skalski for reporting this issue."
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          "value": "Change #4777 (introduced in October 2017) introduced an unforeseen issue in releases which were issued after that date, affecting which clients are permitted to make recursive queries to a BIND nameserver. The intended (and documented) behavior is that if an operator has not specified a value for the \"allow-recursion\" setting, it SHOULD default to one of the following: none, if \"recursion no;\" is set in named.conf; a value inherited from the \"allow-query-cache\" or \"allow-query\" settings IF \"recursion yes;\" (the default for that setting) AND match lists are explicitly set for \"allow-query-cache\" or \"allow-query\" (see the BIND9 Administrative Reference Manual section 6.2 for more details); or the intended default of \"allow-recursion {localhost; localnets;};\" if \"recursion yes;\" is in effect and no values are explicitly set for \"allow-query-cache\" or \"allow-query\". However, because of the regression introduced by change #4777, it is possible when \"recursion yes;\" is in effect and no match list values are provided for \"allow-query-cache\" or \"allow-query\" for the setting of \"allow-recursion\" to inherit a setting of all hosts from the \"allow-query\" setting default, improperly permitting recursion to all clients. Affects BIND 9.9.12, 9.10.7, 9.11.3, 9.12.0-\u003e9.12.1-P2, the development release 9.13.0, and also releases 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, and 9.11.3-S2 from BIND 9 Supported Preview Edition."
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    "datePublished": "2019-01-16T20:00:00Z",
    "dateReserved": "2018-01-17T00:00:00",
    "dateUpdated": "2024-09-16T22:20:36.711Z",
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The intended (and documented) behavior is that if an operator has not specified a value for the \\\"allow-recursion\\\" setting, it SHOULD default to one of the following: none, if \\\"recursion no;\\\" is set in named.conf; a value inherited from the \\\"allow-query-cache\\\" or \\\"allow-query\\\" settings IF \\\"recursion yes;\\\" (the default for that setting) AND match lists are explicitly set for \\\"allow-query-cache\\\" or \\\"allow-query\\\" (see the BIND9 Administrative Reference Manual section 6.2 for more details); or the intended default of \\\"allow-recursion {localhost; localnets;};\\\" if \\\"recursion yes;\\\" is in effect and no values are explicitly set for \\\"allow-query-cache\\\" or \\\"allow-query\\\". However, because of the regression introduced by change #4777, it is possible when \\\"recursion yes;\\\" is in effect and no match list values are provided for \\\"allow-query-cache\\\" or \\\"allow-query\\\" for the setting of \\\"allow-recursion\\\" to inherit a setting of all hosts from the \\\"allow-query\\\" setting default, improperly permitting recursion to all clients. Affects BIND 9.9.12, 9.10.7, 9.11.3, 9.12.0-\u003e9.12.1-P2, the development release 9.13.0, and also releases 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, and 9.11.3-S2 from BIND 9 Supported Preview Edition.\"},{\"lang\":\"es\",\"value\":\"El cambio #4777 (presentado en octubre de 2017) introdujo un problema no imaginado en las versiones lanzadas tras esa fecha, que afecta a los clientes que pueden realizar consultas recursivas a un servidor de nombre de BIND. El comportamiento planeado (y documentado) es que, si un operador no ha especificado un valor para la opci\u00f3n \\\"allow-recursion\\\", DEBER\u00cdA ser por defecto uno de los siguientes: si \\\"recursion no;\\\" est\u00e1 configurado como named.conf; un valor heredado de las opciones \\\"allow-query-cache\\\" o \\\"allow-query\\\" SI \\\"recursion yes;\\\" (la opci\u00f3n por defecto) Y las listas de coincidencias est\u00e1 configuradas de forma expl\u00edcita para \\\"allow-query-cache\\\" o \\\"allow-query\\\" (v\u00e9ase el manual de referencia administrativa de BIND9, secci\u00f3n 6.2, para m\u00e1s detalles); o la opci\u00f3n por defecto planeada de \\\"allow-recursion {localhost; localnets;};\\\" si \\\"recursion yes;\\\" est\u00e1 en uso y no hay valores configurados de forma expl\u00edcita para \\\"allow-query-cache\\\" o \\\"allow-query\\\". Sin embargo, debido a la regresi\u00f3n introducida por el cambio #4777, es posible que, cuando \\\"recursion yes;\\\" est\u00e1 en uso y no se proporcionan valores de lista de coincidencias para \\\"allow-query-cache\\\" o \\\"allow-query\\\" para la configuraci\u00f3n de \\\"allow-recursion\\\", se herede una configuraci\u00f3n de todos los hosts de la opci\u00f3n por defecto \\\"allow-query\\\". Esto permite de forma incorrecta la recursi\u00f3n a todos los clientes. Afecta a BIND en versiones 9.9.12, 9.10.7, 9.11.3, desde la versi\u00f3n 9.12.0 hasta la 9.12.1-P2, la versi\u00f3n de desarrollo 9.13.0, adem\u00e1s de las versiones 9.9.12-S1, 9.10.7-S1, 9.11.3-S1 y 9.11.3-S2 de BIND 9 Supported Preview Edition.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"security-officer@isc.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.0},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.9.12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CEBAAC23-A533-4688-9BF4-1819C600D6FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.9.12:s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"71776282-A512-4AF8-A3ED-D9CB0A768410\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.10.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"01452454-B7CC-4909-8B2B-B4DF06F8CB4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.10.7:s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F5410A39-A1B8-42BB-9C1B-EC50B1677144\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"46216E94-DC78-4338-BAFA-C88FA202948C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.3:s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"07F165FC-15DF-44F1-B578-A592045BEDEF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.3:s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"E8D007DF-0C42-444F-9D43-C52024A0C600\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5DCE4BD2-2256-473F-B17F-192CAC145DF1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.0:a1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F72B798C-6FF1-41D2-83BC-BBA8F0C71DDE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.0:b1:*:*:*:*:*:*\",\"matchCriteriaId\":\"1653E806-4F31-4ACA-B51F-5F0067D99208\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.0:b2:*:*:*:*:*:*\",\"matchCriteriaId\":\"8E5AB236-CBDE-48F3-B6E1-5C6B08996ED7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F57F84D2-76D0-42B9-BA61-96204F527B7A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.0:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF6D296A-A353-4D4D-BAD7-38E02A7AF298\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"440CFE40-C9B7-4E6E-800D-DD595F8FC38E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.1:p1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1E36C76-E5E0-42B9-ABF4-F71CE831A62B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.12.1:p2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5AE4CCD7-7825-4422-A972-E19984076091\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.13.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D425D9A9-872D-444D-B5DA-74CB5F775FC6\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"}]}]}],\"references\":[{\"url\":\"http://www.securitytracker.com/id/1041115\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://kb.isc.org/docs/aa-01616\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Mitigation\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201903-13\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20190830-0002/\",\"source\":\"security-officer@isc.org\"},{\"url\":\"https://usn.ubuntu.com/3683-1/\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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