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FtpXQ Server Two Denial of Service Vulnerabilities

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Release Date:  2006-10-25    Last Update:  2009-09-15    Views:  8,421

Secunia Advisory SA22540

Where:

From remote

Impact:

DoS

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Two vulnerabilities have been discovered in FTPXQ Server, which can be exploited by malicious users to cause a DoS (Denial of Service).

1) An error exists within the handling of the "MKD" command. This can be exploited to exhaust available CPU resources by either supplying an overly long argument or any number of certain special characters to the command.

2) An error when processing overly long arguments to FTP commands can be exploited to consume large amounts of CPU via e.g. an overly long argument passed to an "ABOR" command.

The vulnerabilities are confirmed in version 3.0.1. Other versions may also be affected.


Solution:
Grant only trusted users access to the FTP service.

Provided and/or discovered by:
1) Greg Linares
2) Platen

Original Advisory:
2) http://milw0rm.com/exploits/9664

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: FtpXQ Server Two Denial of Service Vulnerabilities

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