Description
Buffer overflow in the FTP service in 3Com 3CDaemon 2.0 revision 10 allows remote attackers to cause a denial of service (application crash) and execute arbitrary code via (1) a long username in the USER command or (2) an FTP command that contains a long argument, such as cd, send, or ls.
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.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
3Com 3CDaemon 2.0 FTP Username Overflow
exploit/windows/ftp/3cdaemon_ftp_user
Exploit-DB 3
- 3Com 3CDaemon 2.0 FTP Server - 'Username' Remote Overflow (Metasploit) EDB-16730 · remote · Sep 20, 2010 · verified
- 3Com 3CDaemon FTP - Unauthorized 'USER' Remote Buffer Overflow EDB-827 · remote · Feb 18, 2005 · verified
- 3Com FTP Server 2.0 - Remote Overflow EDB-825 · remote · Feb 17, 2005 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 12155 vdb-entry
- 3cdaemon-long-command-dos(18754) vdb-entry
- 20050104 3Com 3CDaemon Multiple Vulnerabilities mailing-list
- 20050218 3com 3CDaemon FTP Unauthorized "USER" Remote BOverflow mailing-list