| Plugin ID | 74 |
| Plugin name | Courier SMTP up to 0.45 buffer overflow |
| Plugin filename | Courier SMTP up to 0.45 buffer overflow.plugin |
| Plugin filesize | 2805 bytes |
| Plugin family | SMTP |
| Plugin created name | Marc Ruef |
| Plugin created email | marc dot ruef at computec dot ch |
| Plugin created web | http://www.computec.ch |
| Plugin created company | computec.ch |
| Plugin created date | 2004/03/22 |
| Plugin updated name | Marc Ruef |
| Plugin updated email | marc dot ruef at computec dot ch |
| Plugin updated web | http://www.computec.ch |
| Plugin updated company | computec.ch |
| Plugin updated date | 2004/11/13 |
| Plugin version | 1.3 |
| Plugin changelog | Changed a pattern-matching error in ATK plugin version 2.1 - It should be working now. Corrected the plugin structure and added the accuracy values in 1.3 |
| Plugin protocol | tcp |
| Plugin port | 25 |
| Plugin procedure detection | open|sleep|close|pattern_exists 220 *Courier 0.1* OR 220 *Courier 0.2* OR 220 *Courier 0.3* OR 220 *Courier 0.4[1-5]* |
| Plugin detection accuracy | 90 |
| Plugin comment | Check is copied from the Nessus plugin. |
| Bug affected | Courier SMTP MTA up to 0.45 |
| Bug not affected | Courier SMTP MTA 0.45 or newer |
| Bug vulnerability class | Buffer Overflow |
| Bug description | The remote mail server is the Courier MTA. There is a buffer overflow in the conversions functions of this software which may allow an attacker to execute arbitrary code on this host. |
| Bug solution | Upgrade to version 0.45 or newer. Limit unwanted connections and communications with firewalling. |
| Bug fixing time | 1 hour |
| Bug exploit availability | Maybe |
| Bug exploit url | http://www.securityfocus.com/bid/9845/exploit/ |
| Bug remote | Yes |
| Bug local | Yes |
| Bug severity | High |
| Bug popularity | 7 |
| Bug simplicity | 6 |
| Bug impact | 9 |
| Bug risk | 7 |
| Bug Nessus risk | High |
| Bug check tools | Nessus is able to do the same check. |
| Source SecurityFocus BID | 9845 |
| Source Nessus ID | 12102 |
| 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 Misc. | http://www.computec.ch |