{ "id": "CVE-2017-11104", "sourceIdentifier": "cve@mitre.org", "published": "2017-07-08T10:29:00.170", "lastModified": "2023-01-20T15:23:12.843", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check." }, { "lang": "es", "value": "Knot DNS anterior a versi\u00f3n 2.4.5 y versi\u00f3n 2.5.x anterior a 2.5.2, contiene un fallo dentro de la implementaci\u00f3n del protocolo TSIG que permitir\u00eda a un atacante con un nombre de clave v\u00e1lido y un algoritmo omitir la autenticaci\u00f3n TSIG si no se establecen restricciones ACL adicionales, debido a una comprobaci\u00f3n inapropiada del per\u00edodo de validez TSIG." } ], "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:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.2, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 4.3 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "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-20" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:knot-dns:knot_dns:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.4.4", "matchCriteriaId": "7F0CEBFD-11BC-40ED-935F-9E621F99A1CD" }, { "vulnerable": true, "criteria": "cpe:2.3:a:knot-dns:knot_dns:2.5.0:*:*:*:*:*:*:*", "matchCriteriaId": "56BBCEF1-0DF1-4A0A-8B43-EEBA203A7314" }, { "vulnerable": true, "criteria": "cpe:2.3:a:knot-dns:knot_dns:2.5.1:*:*:*:*:*:*:*", "matchCriteriaId": "6362CB21-8799-4059-A816-B63064389D0B" } ] } ] }, { "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://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://www.debian.org/security/2017/dsa-3910", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "http://www.securityfocus.com/bid/99598", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf", "source": "cve@mitre.org", "tags": [ "Exploit", "Mitigation", "Patch", "Third Party Advisory" ] }, { "url": "https://bugs.debian.org/865678", "source": "cve@mitre.org", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html", "source": "cve@mitre.org", "tags": [ "Broken Link", "Mailing List", "Patch", "Third Party Advisory" ] } ] }