<plugin_id>32</plugin_id>
<plugin_name>Proxy POST port tcp/21 detection</plugin_name>
<plugin_family>Firewalls</plugin_family>
<plugin_created_date>2003/11/14</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>2004/11/14</plugin_updated_date>
<plugin_version>2.0</plugin_version>
<plugin_changelog>Corrected the plugin structure and added the accuracy values in 1.3. Improved the pattern matching and introduced the plugin changelog in 2.0</plugin_changelog>
<plugin_protocol>tcp</plugin_protocol>
<plugin_port>80</plugin_port>
<plugin_procedure_detection>open|send POST http://www.computec.ch:21/ HTTP/1.0\n\n|sleep|close|pattern_exists HTTP/#.# 200 *</plugin_procedure_detection>
<plugin_detection_accuracy>90</plugin_detection_accuracy>
<plugin_comment>This plugin was written with the ATK Attack Editor.</plugin_comment>
<bug_affected>Some web proxies</bug_affected>
<bug_vulnerability_class>Configuration</bug_vulnerability_class>
<bug_description>Some proxies allow interactive connections to not directly supported ports with an POST request without content-length tag.</bug_description>
<bug_solution>Reconfigure your proxy so that only the users of the internal network can use it, and so that it can not connect to dangerous ports (0-1023).</bug_solution>
<bug_fixing_time>20 minutes</bug_fixing_time>
<bug_exploit_availability>Yes</bug_exploit_availability>
<bug_remote>Yes</bug_remote>
<bug_local>Yes</bug_local>
<bug_severity>High</bug_severity>
<bug_popularity>8</bug_popularity>
<bug_simplicity>7</bug_simplicity>
<bug_impact>7</bug_impact>
<bug_risk>7</bug_risk>
<bug_nessus_risk>High</bug_nessus_risk>
<bug_check_tool>Nessus is able to do the same check.</bug_check_tool>
<source_nessus_id>10194</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>