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CVE-2018-16860

HIGH
Published 2019-07-31T14:38:36
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CVSS Score

V3.0
7.5
/10
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.020
probability
of exploitation in the wild

There is a 2.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.828
Higher than 82.8% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

SAMBA

samba

Affected Versions:

4.8.x up to, excluding 4.8.12 4.9.x up to, excluding 4.9.8 4.10.x up to, excluding 4.10.3

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-282x-mj8h-7q8w

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2018-16860
WEB https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860
WEB https://seclists.org/bugtraq/2019/Aug/21
WEB https://seclists.org/bugtraq/2019/Aug/22
WEB https://seclists.org/bugtraq/2019/Aug/23
WEB https://seclists.org/bugtraq/2019/Aug/25
WEB https://security.gentoo.org/glsa/202003-52
WEB https://support.apple.com/HT210346
WEB https://support.apple.com/HT210348
WEB https://support.apple.com/HT210351
WEB https://support.apple.com/HT210353
WEB https://www.samba.org/samba/security/CVE-2018-16860.html
WEB https://www.synology.com/security/advisory/Synology_SA_19_23
WEB http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
WEB http://seclists.org/fulldisclosure/2019/Aug/11
WEB http://seclists.org/fulldisclosure/2019/Aug/13
WEB http://seclists.org/fulldisclosure/2019/Aug/14
WEB http://seclists.org/fulldisclosure/2019/Aug/15

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: April 4, 2024

References

https://www.synology.com/security/advisory/Synology_SA_19_23
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860
https://www.samba.org/samba/security/CVE-2018-16860.html
https://seclists.org/bugtraq/2019/Aug/25
https://seclists.org/bugtraq/2019/Aug/22
https://seclists.org/bugtraq/2019/Aug/23
https://seclists.org/bugtraq/2019/Aug/21
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
http://seclists.org/fulldisclosure/2019/Aug/14
http://seclists.org/fulldisclosure/2019/Aug/11
http://seclists.org/fulldisclosure/2019/Aug/13
http://seclists.org/fulldisclosure/2019/Aug/15
https://support.apple.com/HT210346
https://support.apple.com/HT210348
https://support.apple.com/HT210351
https://support.apple.com/HT210353
https://security.gentoo.org/glsa/202003-52
Published: 2019-07-31T14:38:36
Last Modified: 2024-08-05T10:32:54.113Z
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