<plugin_id>126</plugin_id>
<plugin_name>Ipswitch WS_FTP Server prior 4.0.0 file REST argument Denial Of Service</plugin_name>
<plugin_family>FTP</plugin_family>
<plugin_created_date>2004/09/02</plugin_created_date>
<plugin_created_name>Marc Ruef</plugin_created_name>
<plugin_created_email>marc dot ruef at computec dot ch</plugin_created_email>
<plugin_created_web>http://www.computec.ch</plugin_created_web>
<plugin_created_company>computec.ch</plugin_created_company>
<plugin_updated_name>Marc Ruef</plugin_updated_name>
<plugin_updated_email>marc dot ruef at computec dot ch</plugin_updated_email>
<plugin_updated_web>http://www.computec.ch</plugin_updated_web>
<plugin_updated_company>computec.ch</plugin_updated_company>
<plugin_updated_date>2004/11/13</plugin_updated_date>
<plugin_version>1.1</plugin_version>
<plugin_changelog>Corrected the plugin structure and added the accuracy values in 1.1</plugin_changelog>
<plugin_protocol>tcp</plugin_protocol>
<plugin_port>21</plugin_port>
<plugin_procedure_detection>open|sleep|close|pattern_exists *WS_FTP Server [0-3].* OR *WS_FTP Server 4.0*</plugin_procedure_detection>
<plugin_detection_accuracy>80</plugin_detection_accuracy>
<plugin_comment>This plugin was inspired by the Nessus plugin.</plugin_comment>
<bug_affected>Ipswitch WS_FTP Server prior 4.0.0</bug_affected>
<bug_not_affected>Ipswitch WS_FTP Server newer than 4.0.0 or other ftp servers</bug_not_affected>
<bug_vulnerability_class>Denial Of Service</bug_vulnerability_class>
<bug_description>The Ipswitch WS_FTP Server is a well-known ftp server for Windows operating systems. A remote or local attacker can create a specially crafted file with a large REST argument. This may crash the server and cause a denial of service.</bug_description>
<bug_solution>If the ftp server is not used it should be de-installed or de-activated. Install the newest patch or bugfix to solve the problem or upgrade to the latest software version which is not vulnerable anymore (http://www.ipswitch.com/Products/WS_FTP-Server/). Additionally limit unwanted connections and communications with firewalling. Just let serious user access your ftp server.</bug_solution>
<bug_fixing_time>Approx. 20 minutes</bug_fixing_time>
<bug_exploit_availability>Maybe</bug_exploit_availability>
<bug_exploit_url>http://www.securityfocus.com/bid/9953/exploit/</bug_exploit_url>
<bug_remote>Yes</bug_remote>
<bug_local>Yes</bug_local>
<bug_severity>Medium</bug_severity>
<bug_popularity>7</bug_popularity>
<bug_simplicity>6</bug_simplicity>
<bug_impact>7</bug_impact>
<bug_risk>6</bug_risk>
<bug_nessus_risk>High</bug_nessus_risk>
<bug_check_tool>Nessus is able to do a similar check</bug_check_tool>
<source_securityfocus_bid>9953</source_securityfocus_bid>
<source_nessus_id>14598</source_nessus_id>
<source_literature>Hacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427</source_literature>
<source_misc>http://www.computec.ch</source_misc>