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Telnet - Ftp Server Two Vulnerabilities

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Release Date:  2006-11-29    Last Update:  2006-12-04    Views:  9,281

Secunia Advisory SA22921

Where:

From remote

Impact:

Exposure of sensitive information, DoS

Solution Status:

Unpatched

CVE Reference(s):

Description


Parvez Anwar has discovered a vulnerability in Telnet - FTP Server, which can be exploited by malicious users to gain access to sensitive information or cause a DoS (Denial of Service).

1) An input validation error in various commands (e.g. GET and PUT) can be exploited to list and download arbitrary files outside of the FTP root via directory traversal attacks.

2) An error in the handling of the "RETR" command can be exploited to crash the service by sending two successive RETR commands.

The vulnerabilities are confirmed in version 1.0 (build 1.250). Other versions may also be affected.


Solution:
Grant access to trusted users only.

Provided and/or discovered by:
Parvez Anwar

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: Telnet - Ftp Server Two Vulnerabilities

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