MailEnable SMTP Connector Service 1.x DNS Lookup denial of service 1.1
 
Plugin ID223
Plugin nameMailEnable SMTP Connector Service 1.x DNS Lookup denial of service
Plugin filenameMailEnable SMTP Connector Service 1.x DNS Lookup denial of service.plugin
Plugin filesize3652 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 date2004/09/14
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 detectionopen|sleep|close|pattern_exists 220 *Enable*1.[0-6]* OR 220 *Enable*1.7.[0-1]* OR 220 *Enable*0.#* OR 220 *Enable*1.[0-2]*
Plugin detection accuracy80
Plugin commentThis ATK plugin is inspired by the Nessus plugin. The Standard Edition seems to format version as "1.71--" (for 1.71) while Professional Edition formats it like "0-1.2-" (for 1.2).
Bug published emailinfo at mailenable dot com
Bug published webhttp://www.mailenable.com
Bug published companyMailEnable
Bug published date2004/11/09
Bug advisoryhttp://www.mailenable.com/hotfix/
Bug affectedMailEnable SMTP Connector Service 1.x
Bug not affectedFixed MailEnable SMTP Connector Service 1.x or other solutions
Bug vulnerability classDenial Of Service
Bug descriptionThe target system is running MailEnable SMTP Connector Service 1.x. There is a denial of service vulnerability in the DNS Lookup. An attacker is able to crash the service if more than 100 requests for MX records are sent.
Bug solutionApply the DNS Lookup hotfix from http://www.mailenable.com/hotfix/ or upgrade the software to the latest release. 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. 30 minutes
Bug exploit availabilityYes
Bug exploit urlhttp://www.securityfocus.com/bid/5261/exploit/
Bug remoteYes
Bug localNo
Bug severityMedium
Bug popularity3
Bug simplicity6
Bug impact8
Bug risk5
Bug Nessus riskLow
Bug check toolsNessus is able to do the same check,
Source SecurityFocus BID11144
Source OSVDB ID9789
Source Nessus ID14712
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.mailenable.com

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