CVE-2018-16860 (GCVE-0-2018-16860)

Vulnerability from cvelistv5 – Published: 2019-07-31 14:38 – Updated: 2024-08-05 10:32
VLAI
Summary
A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
URL Tags
https://www.synology.com/security/advisory/Synolo… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://www.samba.org/samba/security/CVE-2018-168… x_refsource_MISC
https://seclists.org/bugtraq/2019/Aug/25 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Aug/22 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Aug/23 mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Aug/21 mailing-listx_refsource_BUGTRAQ
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://seclists.org/fulldisclosure/2019/Aug/14 mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2019/Aug/11 mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2019/Aug/13 mailing-listx_refsource_FULLDISC
http://seclists.org/fulldisclosure/2019/Aug/15 mailing-listx_refsource_FULLDISC
https://support.apple.com/HT210346 x_refsource_CONFIRM
https://support.apple.com/HT210348 x_refsource_CONFIRM
https://support.apple.com/HT210351 x_refsource_CONFIRM
https://support.apple.com/HT210353 x_refsource_CONFIRM
https://security.gentoo.org/glsa/202003-52 vendor-advisoryx_refsource_GENTOO
Impacted products
Vendor Product Version
SAMBA samba Affected: 4.8.x up to, excluding 4.8.12
Affected: 4.9.x up to, excluding 4.9.8
Affected: 4.10.x up to, excluding 4.10.3
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principal.\"}],\"metrics\":{\"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:H/I:H/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:P/I:P/A:P\",\"baseScore\":6.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":6.8,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-358\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-358\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.8.0\",\"versionEndExcluding\":\"4.8.12\",\"matchCriteriaId\":\"04E9BEFE-FF93-4C6F-B76D-6B8CFE1E5BDD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.9.0\",\"versionEndExcluding\":\"4.9.8\",\"matchCriteriaId\":\"35DB3E08-0131-4AF2-AB27-D51B401D7D45\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10.0\",\"versionEndExcluding\":\"4.10.3\",\"matchCriteriaId\":\"895BEC8B-ADBC-4575-B07E-3149A613C4ED\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.8\",\"versionEndIncluding\":\"7.5.0\",\"matchCriteriaId\":\"683A4E25-64AF-46AC-BAA8-E56BD9C9840F\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/11\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/13\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/14\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/15\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue 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Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_19_23\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/13\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/14\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://seclists.org/fulldisclosure/2019/Aug/15\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party 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Advisory\"]},{\"url\":\"https://www.synology.com/security/advisory/Synology_SA_19_23\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.