CVE-2025-34110

Description

A directory traversal vulnerability exists in ColoradoFTP Server ≤ 1.3 Build 8 for Windows, allowing unauthenticated attackers to read or write arbitrary files outside the configured FTP root directory. The flaw is due to insufficient sanitation of user-supplied file paths in the FTP GET and PUT command handlers. Exploitation is possible by submitting traversal sequences during FTP operations, enabling access to system-sensitive files. This issue affects only the Windows version of ColoradoFTP.

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Weakness Type (CWE)

CWE-22 Path Traversal

CWE-306 Missing Authentication

CWE-552 CWE-552

References

Other References

https://bitbucket.org/nolife/coloradoftp/commits/16a60c4a74ef477cd8c16ca82442eaab2fbe8c86 https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/ftp/colorado_ftp_traversal.rb https://www.exploit-db.com/exploits/40231 https://www.vulncheck.com/advisories/colorado-ftp-server-path-traversal-information-disclosure

Frequently Asked Questions

What is CVE-2025-34110? +

A directory traversal vulnerability exists in ColoradoFTP Server ≤ 1.3 Build 8 for Windows, allowing unauthenticated attackers to read or write arbitrary files outside the configured FTP root directory. The flaw is due to insufficient sanitation of user-supplied file paths in the FTP GET and PUT command handlers. Exploitation is possible by submitting traversal sequences during FTP operations, enabling access to system-sensitive files. This issue affects only the Windows version of ColoradoFTP.

How do I check if I'm vulnerable to CVE-2025-34110? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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