CVE-2023-40044

Published: Sep 27, 2023Modified: Jun 17, 2026CISA KEV

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

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.

Affected (2)

Products: Progress: Ws Ftp Server

Progress

1 product

Ws Ftp Server

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Progress Ws Ftp Server	Before 8.7.4
Progress Ws Ftp Server	From 8.8 to 8.8.2

Related CWEs

CWE-502

Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

References (17)

http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthenticated-Remote-Code-Execution.html

Source: security@progress.com

ExploitThird Party AdvisoryVDB Entry

https://attackerkb.com/topics/bn32f9sNax/cve-2023-40044

Source: security@progress.com

Third Party Advisory

https://censys.com/cve-2023-40044/

Source: security@progress.com

Third Party Advisory

https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023

Source: security@progress.com

Vendor Advisory

https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044

Source: security@progress.com

ExploitThird Party Advisory

https://www.progress.com/ws_ftp

Source: security@progress.com

Product

https://www.rapid7.com/blog/post/2023/09/29/etr-critical-vulnerabilities-in-ws_ftp-server/

Source: security@progress.com

Broken LinkThird Party Advisory

https://www.theregister.com/2023/10/02/ws_ftp_update/

Source: security@progress.com

Press/Media CoverageThird Party Advisory

http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthenticated-Remote-Code-Execution.html