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CVE-2023-40044

WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability

Basic Information

CVE State
PUBLISHED
Reserved Date
August 08, 2023
Published Date
September 27, 2023
Last Updated
February 13, 2025
Vendor
Progress Software Corporation
Product
WS_FTP Server
Description
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.
Tags
dotnet cisa malware ransomware metasploit_scanner

CVSS Scores

CVSS v3.1

10.0 - CRITICAL

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

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2023-10-05 00:00:00 UTC) Source
Used in Malware
Yes (added 2023-10-05 00:00:00 UTC) Source

References

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

Known Exploited Vulnerability Information

Source Added Date
CISA 2023-10-05 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/ws_ftp_rce_cve_2023_40044.rb 2025-04-29 11:01:39 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

ws_ftp_rce_cve_2023_40044

Type: metasploit • Created: Unknown

Metasploit module for CVE-2023-40044

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Exploit Used in Malware

  • Added to KEVIntel

  • Detected by Metasploit