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Insecure Library Loading
Moderately critical

ProFTPD Two Format String Vulnerabilities

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Release Date:  2005-07-26    Last Update:  2005-07-27    Views:  20,579

Secunia Advisory SA16181

Where:

From remote

Impact:

Exposure of sensitive information, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Two vulnerabilities have been reported in ProFTPD, which can be exploited by malicious users to disclose certain sensitive information, cause a DoS (Denial of Service), or potentially compromise a vulnerable system.

1) A format string error exists when displaying a shutdown message containing the name of the current directory. This can be exploited by a user, who creates a directory containing format specifiers and sets the directory as the current directory, when the shutdown message is being sent.

Successful exploitation requires a shutdown message containing the "%C", "%R", or "%U" variables.

2) A format string error exists when displaying response messages to the client using information retrieved from a database using mod_sql. This can be exploited by a user, who inserts format string sequences into database tables that are used to generate the response messages.

Successful exploitation requires that the "SQLShowInfo" directive is set and also requires the user to have control over the contents of the used tables in the database.


Solution:
The vulnerabilities have been fixed in version 1.3.0rc2.

Provided and/or discovered by:
The vendor credits infamous42md.

Original Advisory:
http://www.proftpd.org/docs/RELEASE_NOTES-1.3.0rc2

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: ProFTPD Two Format String Vulnerabilities

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