Bill Finlayson has discovered two vulnerabilities in Titan FTP Server, which can be exploited by malicious users to bypass certain security restrictions and disclose sensitive information.

1) An input validation error exists when processing "XCRC" commands. This can be exploited to determine the existence and file size of e.g. arbitrary files outside the FTP root directory and potentially brute force their contents via directory traversal attacks.

1) An input validation error exists when processing "COMB" commands. This can be exploited to read and delete an arbitrary file placed outside a user's home directory via directory traversal attacks.

The vulnerabilities are confirmed in version 8.10 build 1125. Other versions may also be affected.

Solution
Restrict access to trusted users only.

Provided and/or discovered by
Bill Finlayson

Changelog
Further details available in Customer Area

Original Advisory
http://archives.neohapsis.com/archives/bugtraq/2010-06/0160.html
http://archives.neohapsis.com/archives/bugtraq/2010-06/0183.html

Deep Links
Links available in Customer Area