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.
Published 2019-07-31 15:15:12
Updated 2019-08-14 12:15:11
Source Red Hat, Inc.
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2018-16860

0.29%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-16860

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.0
MEDIUM AV:N/AC:M/Au:S/C:P/I:P/A:P
6.8
6.4
NIST
7.5
HIGH CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.6
5.9
NIST
7.5
HIGH CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.6
5.9
Red Hat, Inc.

CWE ids for CVE-2018-16860

  • The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2018-16860

Products affected by CVE-2018-16860

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