---
cve: "CVE-2018-16860"
severity: "HIGH"
cvss: 7.5
epss: "2.5%"
vendor: "Samba"
kev: false
exploited: false
published: "2019-07-31 15:15:11"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T09:37:46+02:00"
---

# CVE-2018-16860

> 7.5 HIGH

## Beschreibung

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-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- a72d4598bf4a2186769f25050663f4779ea581e0 (Commit)
- 9dfd4419b50b17ed916957372829057af8e27893 (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2018-16860) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_