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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2025-0244
Authentication Bypass Vulnerability in CrushFTP

Original Issue Date:October 06, 2025

Severity Rating: CRITICAL

Software Affected

  • CrushFTP version 10 prior to 10.8.5
  • CrushFTP version 11 prior to 11.3.4_23

Overview

A vulnerability has been reported in CrushFTP that could be exploited by a remote attacker to bypass security restrictions on the targeted system.

Target Audience:
All organizations and individuals using CrushFTP.

Risk Assessment:
High risk of information disclosure and system instability.

Impact Assessment:
Potential for data theft and system compromise.

Description

CrushFTP is a high-performance, secure file transfer solution that supports FTP, SFTP, HTTP/S, and more. It streamlines file management with advanced automation, strong encryption, and flexible scalability for enterprise-level operations.

This vulnerability exists in CrushFTP due to security failure in DMZ proxy implementation and improper AS2 validation.  A remote attacker can exploit this vulnerability by sending a specially HTTP POST requests to the /WebInterface/function/ endpoint.

Successful exploitation of this vulnerability could enable a remote attacker to bypass security restrictions on the targeted system without requiring authentication.

Solution

Apply appropriate updates as provided by the vendor:
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025

Vendor Information

CrushFTP
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025

References

CrushFTP
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025

GB Hackers
https://gbhackers.com/crushftp-hit-by-critical-0-day-rce-vulnerability/

CVE Name
CVE-2025-54309

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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