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VID 16073
Severity 30
Port 21
Protocol TCP
Class FTP
Detailed Description The WS FTP server, according to its version number, has a Denial of Service Vulnerability.
WS FTP Server, developed by Ipswitch, is an FTP server for Microsoft Windows platforms. WS FTP 5.0.2 and possibly other versions are vulnerable to a Denial of Service attack, caused by a flaw when parsing file paths. By sending a malformed file path through the 'cd' command, a remote authenticated attacker could consume the available CPU resources.

* Note: This check solely relied on the version number of the remote WS FTP server to assess this vulnerability, so this might be a false positive.

* Platforms Affected:
Ipswitch, Inc., WS_FTP Server 5.0.2 and earlier
Microsoft Windows Any version
Recommendation No upgrade or patch available as of September 2004.

Upgrade to the new version of WS FTP, when new fixed version becomes available from the Ipswitch WS_FTP server's "Patches & Upgrades" site at http://www.ipswitch.com/support/WS_FTP-Server/patch-upgrades.html
Related URL CVE-2004-1643 (CVE)
Related URL 11065 (SecurityFocus)
Related URL 17155 (ISS)