SMTP mail relay test 1.1
 
Plugin ID156
Plugin nameSMTP mail relay test
Plugin filenameSMTP mail relay test.plugin
Plugin filesize3797 bytes
Plugin familySMTP
Plugin created nameMarc Ruef
Plugin created emailmarc dot ruef at computec dot ch
Plugin created webhttp://www.computec.ch
Plugin created companycomputec.ch
Plugin created date2004/09/07
Plugin updated nameMarc Ruef
Plugin updated emailmarc dot ruef at computec dot ch
Plugin updated webhttp://www.computec.ch
Plugin updated companycomputec.ch
Plugin updated date2004/11/13
Plugin version1.1
Plugin changelogCorrected the plugin structure and added the accuracy values in 1.1
Plugin protocoltcp
Plugin port25
Plugin procedure exploitopen|sleep|send HELO atk.test\n|sleep|send MAIL FROM:<plugin156@atk.test>\n|sleep|send RCPT TO:<root@localhost>\n|sleep|send DATA\n|sleep|send Date: 11 Feb 81 11:02:11\n|send From: Attack Tool Kit Plugin 156\n|send Subject: The target is allowing mails to be relayed.\n|send .\n|sleep|send QUIT\n|close|pattern_exists *250 *
Plugin exploit accuracy99
Plugin commentThis plugin was written with the ATK Attack Editor.
Bug published nameJonathan B. Postel (+)
Bug published webhttp://www.isoc.org/postel/
Bug published companyInformation Sciences Institute, University of Southern California
Bug published date1982/08/01
Bug advisoryhttp://www.faqs.org/rfcs/rfc821.html
Bug affectedOpen smtp relays
Bug not affectedClosed smtp relays (e.g. no anonymous mails or authentication required)
Bug vulnerability classConfiguration
Bug descriptionThe remote host is running a SMTP mail relay. This one could be used to send emails. It may also be possible to specify wrong sender addresses - This could be used to send spam or junk mail.
Bug solutionThe server should be deactivated or de-installed if not necessary. Do not allow everyone to send emails over your mail relay. And do not allow arbitrary sender addresses to be specified. To make it harder to find the server the daemon could be configured to listen at another port (e.g. 8025). Try to prevent unwanted connection attempts by filtering traffic with firewalling. Alternation of the application banner can confuse an attacker and let him determine the wrong software.
Bug fixing timeApprox. 2 hours
Bug exploit availabilityYes
Bug exploit urlhttp://www.securityfocus.com/bid/6118/exploit/
Bug remoteYes
Bug localYes
Bug severityMedium
Bug popularity9
Bug simplicity7
Bug impact7
Bug risk7
Bug Nessus riskLow/Medium
Bug check toolsMost vulnerability scanners are able to do a similar check.
Source CVECAN-1999-0512
Source SecurityFocus BID6118
Source Nessus ID10262
Source LiteratureHacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427
Source Misc.http://www.cs.cf.ac.uk/Dave/PERL/node175.html

This file was generated by the Attack Tool Kit (ATK), the open-sourced security scanner and exploiting framework.