---
cve: "CVE-2018-10933"
severity: "CRITICAL"
cvss: 9.1
epss: "91.8%"
vendor: "[UNKNOWN]"
kev: false
exploited: false
published: "2018-10-17 12:29:00"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T18:41:05+02:00"
---

# CVE-2018-10933

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.

## CVSS-Vektor

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

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

## Exploit-Evidenz

- [EDB-46307 — LibSSH 0.7.6 / 0.8.4 - Unauthorized Access](https://www.exploit-db.com/exploits/46307) ✅
- [EDB-45638 — libSSH - Authentication Bypass](https://www.exploit-db.com/exploits/45638)

## Patch verfügbar (OSV)

- c20b360c96a098773755e82982ec6d7dfc7ff057 (Commit)
- 789df0b7d0c7abd6b85db9fc5247e146e3d4ddba (Commit)

## Referenzen

- <https://usn.ubuntu.com/3795-1/>
- <https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html>
- <https://usn.ubuntu.com/3795-2/>
- <https://www.debian.org/security/2018/dsa-4322>
- <https://www.exploit-db.com/exploits/45638/>
- <https://www.libssh.org/security/advisories/CVE-2018-10933.txt>
- <https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10933>
- <http://www.securityfocus.com/bid/105677>
- <https://lists.debian.org/debian-lts-announce/2018/10/msg00010.html>
- <https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016>
- <https://security.netapp.com/advisory/ntap-20190118-0002/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2018-10933) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_