WarFTPD Multiple Format String Vulnerabilities

BID:20944

Info

WarFTPD Multiple Format String Vulnerabilities

Bugtraq ID: 20944
Class: Input Validation Error
CVE: CVE-2006-5789
Remote: Yes
Local: No
Published: Nov 07 2006 12:00AM
Updated: Sep 14 2009 11:11PM
Credit: Joxean Koret <[email protected]> is credited with the discovery of these vulnerabilities.
Vulnerable: War FTP Daemon War FTP Daemon 1.82 RC11
War FTP Daemon War FTP Daemon 1.82.0 RC12
Not Vulnerable: War FTP Daemon War FTP Daemon 1.82.0 RC13

Discussion

WarFTPD Multiple Format String Vulnerabilities

WarFTPd is prone to multiple remote format-string vulnerabilities because the application fails to sanitize user-supplied input before passing it to a formatted-output function.

An attacker can exploit these issues to crash the server and possibly to execute arbitrary code within the context of the server, but this has not been confirmed.

WarFTPd 1.82.00-RC11 is reported vulnerable; prior versions may be vulnerable as well.

Exploit / POC

WarFTPD Multiple Format String Vulnerabilities

The following proof of concept may crash the server:

ftp&gt; cdup %s*256

Solution / Fix

WarFTPD Multiple Format String Vulnerabilities

Solution:
Updates are available. Please see the references for details.


War FTP Daemon War FTP Daemon 1.82.0 RC12

War FTP Daemon War FTP Daemon 1.82 RC11

References

WarFTPD Multiple Format String Vulnerabilities

References:
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