Wing Ftp Server 4.3.8 Page
Wing FTP Server 4.3.8 is a cross-platform file transfer server known primarily in the cybersecurity community for a critical Authenticated Remote Code Execution (RCE) vulnerability. While the software provides robust support for protocols like FTP, FTPS, SFTP, and HTTP/S, version 4.3.8 and below are highly susceptible to system compromise if an attacker gains administrative credentials. Core Vulnerability: Authenticated RCE
| Security Feature | Implementation in 4.3.8 | |----------------|--------------------------| | Encryption | SSL/TLS 1.0, 1.1, 1.2 (Note: TLS 1.3 is not supported, as it came later) | | Password storage | MD5, SHA-1, SHA-256 hashes (configurable) | | IP Black/Whitelist | Per-domain IP access rules (supports CIDR notation) | | Brute-force protection | Auto-ban after X failed attempts (time-based) | | FXP support | Can be disabled globally or per-user | | OPTS UTF8 | Full UTF-8 support for international filenames |
Despite its utility, version 4.3.8 is now primarily discussed in the context of its severe security vulnerabilities. It is highly susceptible to Authenticated Remote Code Execution (RCE) CVE-2022-50934 / EDB-50720 wing ftp server 4.3.8
Final notes
- Regularly review logs and update the application and OS.
- Use strong transport encryption and limit administrative exposure.
- Test backups and upgrades in staging prior to production changes.
High. An attacker with valid administrative credentials can execute arbitrary system commands on the target host with full SYSTEM privileges (on Windows) or root privileges (on Linux). Attack Vector:
Authenticated Remote Code Execution (RCE) / Command Injection. Affected Component: Wing FTP Server 4
Attackers with administrative credentials can execute arbitrary commands (such as PowerShell or Lua scripts) through the admin interface to establish a reverse shell. Threat Level:
Security Considerations for Using 4.3.8
This is critical. No software version is immune to vulnerabilities. Regularly review logs and update the application and OS
Post-installation steps: