Description
Seagull FTP Client <= v3.3 Build 409 contains a stack-based buffer overflow vulnerability in its FTP directory listing parser. When the client connects to an FTP server and receives a crafted response to a LIST command containing an excessively long filename, the application fails to properly validate input length, resulting in a buffer overflow that overwrites the Structured Exception Handler (SEH). This may allow remote attackers to execute arbitrary code on the client system. This product line was discontinued and users were advised to use BlueZone Secure FTP instead, at the time of disclosure.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Rocket Software | Seagull FTP Client | ≤ 3.3 Build 409 | — |
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
-
Seagull FTP v3.3 Build 409 Stack Buffer Overflow
exploit/windows/ftp/seagull_list_reply
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/seagull_list_reply.rb exploit
- https://www.exploit-db.com/exploits/16705 exploit
- https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client/ technical-description exploit
- https://web.archive.org/web/20120102094617/http://bluezone.rocketsoftware.com/products/secure-managed-file-transfer/bz-secure-ftp/at-a-glance product
- https://www3.rocketsoftware.com/bluezone/help/v34/sftp/sftp.htm product
- https://www.vulncheck.com/advisories/seagull-ftp-stack-buffer-overflow third-party-advisory