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ProFTPD Two Format String Vulnerabilities
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Secunia Advisory:
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SA16181
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Release Date:
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2005-07-26
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Last Update:
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2005-07-27
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Popularity:
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13,579 views
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Critical:
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Moderately critical
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Impact:
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Exposure of sensitive information
DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | ProFTPD 1.2.x
ProFTPD 1.3.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2005-2390
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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.
Changelog:
2005-07-27: Added CVE reference.
Original Advisory:
http://www.proftpd.org/docs/RELEASE_NOTES-1.3.0rc2
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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