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Titan FTP Server "XCRC" and "COMB" Directory Traversal Vulnerabilities

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Release Date:  2010-06-17    Last Update:  2010-06-25    Views:  3,366

Secunia Advisory SA40237

Where:

From remote

Impact:

Security Bypass, Exposure of system information, Exposure of sensitive information

Solution Status:

Unpatched

CVE Reference(s):

Description


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

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 to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Titan FTP Server "XCRC" and "COMB" Directory Traversal Vulnerabilities

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