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CVE-2023-40044WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability
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.
10.0 CRITICALEPSS 90.35%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 10.0 | CRITICAL | 3.1ProgressSoftware (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| 8.8 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due Oct 26, 2023
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Details
- CVE ID
- CVE-2023-40044
- Status
- Analyzed
- Assigner (CNA)
- ProgressSoftware
- Published
- Sep 27, 2023
- Last modified
- 2026-06-17 06:15 UTC
- Weaknesses
- CWE-502 · Deserialization of Untrusted Data
Affected Products
As published by the CNA in the CVE record.
Progress Software CorporationWS_FTP Server2 version ranges
- 8.8.0 before 8.8.2
- 8.7.0 before 8.7.4
References
- packetstormsecurity.com http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthenticated-Remote-Code-Execution.html
- attackerkb.com https://attackerkb.com/topics/bn32f9sNax/cve-2023-40044
- censys.com https://censys.com/cve-2023-40044/
- community.progress.com https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023
- assetnote.io https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044
- progress.com https://www.progress.com/ws_ftp
- rapid7.com https://www.rapid7.com/blog/post/2023/09/29/etr-critical-vulnerabilities-in-ws_ftp-server/
- theregister.com https://www.theregister.com/2023/10/02/ws_ftp_update/
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-40044