Description
FreeFloat FTP Server contains multiple critical design flaws that allow unauthenticated remote attackers to upload arbitrary files to sensitive system directories. The server accepts empty credentials, defaults user access to the root of the C:\ drive, and imposes no restrictions on file type or destination path. These conditions enable attackers to upload executable payloads and .mof files to locations such as system32 and wbem\mof, where Windows Management Instrumentation (WMI) automatically processes and executes them. This results in remote code execution with SYSTEM-level privileges, without requiring user interaction.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeFloat | FTP Server | — | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
FreeFloat FTP Server Arbitrary File Upload
exploit/windows/ftp/freefloatftp_wbem
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/freefloatftp_wbem.rb exploit
- https://www.exploit-db.com/exploits/23226 exploit
- https://www.fortiguard.com/encyclopedia/ips/34209/freefloat-ftp-server-arbitrary-file-upload third-party-advisory
- https://archive.org/details/tucows_367516_Freefloat_FTP_Server product
- https://www.vulncheck.com/advisories/freefloat-ftp-server-arbitrary-file-upload third-party-advisory