CVE-2019-14861 (GCVE-0-2019-14861)

Vulnerability from cvelistv5 – Published: 2019-12-10 22:19 – Updated: 2024-08-05 00:26
VLAI?
Summary
All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.
Severity ?
5.3 (Medium)
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat samba Affected: all versions 4.11.x before 4.11.3
Affected: all versions 4.10.x before 4.10.11
Affected: all versions 4.x.x before 4.9.17
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      "id": "CVE-2019-14861",
      "lastModified": "2024-11-21T04:27:31.217",
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      "sourceIdentifier": "secalert@redhat.com",
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    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-14861\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2019-12-10T23:15:10.360\",\"lastModified\":\"2024-11-21T04:27:31.217\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.\"},{\"lang\":\"es\",\"value\":\"Todas las versiones de Samba versiones 4.x.x anteriores a 4.9.17, versiones 4.10.x anteriores a 4.10.11 y versiones 4.11.x anteriores a 4.11.3, presentan un problema en el que la tuber\u00eda RPC dnsserver (pobremente nombrada) provee instalaciones administrativas para modificar registros y zonas DNS. Samba, cuando act\u00faa como AD DC, almacena registros DNS en LDAP. En AD, los permisos predeterminados en la partici\u00f3n DNS permiten la creaci\u00f3n de nuevos registros por parte de usuarios autenticados. Esto es usado, por ejemplo, para permitir que las m\u00e1quinas se registren autom\u00e1ticamente en DNS. Si un registro DNS fue creado que no distingue entre may\u00fasculas y min\u00fasculas el nombre de la zona, las rutinas ldb_qsort() y dns_name_compare() podr\u00edan ser confundidas en la memoria de lectura antes de la lista de entradas DNS al responder a la funci\u00f3n DnssrvEnumRecords() o DnssrvEnumRecords2() y entonces seguir la memoria inv\u00e1lida como un puntero.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}],\"cvssMetricV30\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:N/I:N/A:P\",\"baseScore\":3.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.8,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-276\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-276\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.0.0\",\"versionEndExcluding\":\"4.9.17\",\"matchCriteriaId\":\"26C10D91-8EB3-4869-9C66-B73EF3A4F270\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10.0\",\"versionEndExcluding\":\"4.10.11\",\"matchCriteriaId\":\"BA37AE3F-78AA-4807-8C66-7C197045D0F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.11.0\",\"versionEndExcluding\":\"4.11.3\",\"matchCriteriaId\":\"776B9CDE-BF44-4A36-9C07-F0F71E66533D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"97A4B8DF-58DA-4AB6-A1F9-331B36409BA3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80F0FA5D-8D3B-4C0E-81E2-87998286AF33\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"815D70A8-47D3-459C-A32C-9FEACA0659D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD783B0C-9246-47D9-A937-6144FE8BFF0F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A31C8344-3E02-4EB8-8BD8-4C84B7959624\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B620311B-34A3-48A6-82DF-6F078D7A4493\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing 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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://usn.ubuntu.com/4217-1/\", \"name\": \"USN-4217-1\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://usn.ubuntu.com/4217-2/\", \"name\": \"USN-4217-2\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/\", \"name\": \"FEDORA-2019-be98a08835\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html\", \"name\": \"openSUSE-SU-2019:2700\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/\", \"name\": \"FEDORA-2019-11dddb785b\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, 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\"[oss-security] 20240625 Re: Out-of-bounds read \u0026 write in the glibc\u0027s qsort()\", \"tags\": [\"mailing-list\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-276\", \"description\": \"CWE-276\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2024-06-25T01:05:54.054469\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-14861\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-05T00:26:39.136Z\", \"dateReserved\": \"2019-08-10T00:00:00\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2019-12-10T22:19:05\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.