---
cve: "CVE-2023-40044"
severity: "CRITICAL"
cvss: 10.0
epss: "90.4%"
vendor: "Progress Software Corporation"
kev: true
exploited: true
published: "2023-09-27 15:18:57"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-08T07:56:41+01:00"
---

# CVE-2023-40044

> 10.0 CRITICAL · ⚠️ CISA KEV (1130 Tage) · 🔓 Exploited · 🧪 PoC

## Beschreibung

In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a pre-authenticated attacker could leverage a .NET deserialization vulnerability in the Ad Hoc Transfer module to execute remote commands on the underlying WS_FTP Server operating system.

## CNA-Record (Kanon, cvelistV5)

- CNA: **ProgressSoftware**
- State: PUBLISHED
- Stand: 2025-10-21 23:05:36
- CNA-CVSS: **10.0** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA KEV seit: **05.10.2023**
- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **active**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
```

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

## Schwachstellen-Klasse

- **CWE-502** — Deserialization of Untrusted Data
  The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

## Angriffsmuster (CAPEC)

- [CAPEC-586 — Object Injection](https://capec.mitre.org/data/definitions/586.html) _(Severity: High)_

## BSI-Hinweise (deutsch)

- [Progress Software WS_FTP: Mehre Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2023-2506) — _BSI-Einstufung: hoch_
  Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in Progress Software WS_FTP ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren oder Cross-Site Scripting und Cross-Site Request Forgery Angriffe durchzuführen.

## Referenzen

- <https://www.progress.com/ws_ftp>
- <https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023>
- <https://www.theregister.com/2023/10/02/ws_ftp_update/>
- <https://www.rapid7.com/blog/post/2023/09/29/etr-critical-vulnerabilities-in-ws_ftp-server/>
- <https://attackerkb.com/topics/bn32f9sNax/cve-2023-40044>
- <https://censys.com/cve-2023-40044/>
- <https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044>
- <http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthenticated-Remote-Code-Execution.html>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-40044>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2023-40044/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_