Two vulnerabilities have been discovered in Golden FTP Server, which can be exploited by malicious users to delete arbitrary files and compromise a vulnerable system.

1) An input validation error can be exploited to escape the FTP root and delete arbitrary files on the system via directory traversal specifiers sent in the "DELE" command.

Successful exploitation of this vulnerability requires that the user has been granted full control (not enabled by default) to an accessible share folder.

This vulnerability is confirmed in version 4.50 of both the free and Pro branches. Other versions may also be affected.

2) A boundary error in GFTP.exe when creating a notification message for the taskbar's icon can be exploited to cause a buffer overflow of a global buffer via an overly long string (greater than 256 bytes) sent in the "PASS" command.

Successful exploitation of this vulnerability requires valid credentials and the "Show new connections" option to be enabled (disabled by default).

This vulnerability is confirmed in version 4.70 of the free branch. Other versions may also be affected.

Solution
Restrict access to trusted users only.

Provided and/or discovered by
1) sharpe
2) Craig Freyman (cd1zz)

Changelog
Further details available to Secunia VIM customers

Original Advisory
sharpe:
http://packetstormsecurity.org/0912-exploits/goldenftp-delete.txt

Deep Links
Links available to Secunia VIM customers