| Plugin ID | 143 |
| Plugin name | Kazaa Altnet Download Manager prior 4.0.0.4 ActiveX control buffer overflow |
| Plugin filename | Kazaa Altnet Download-Manager prior 4.0.0.4 ActiveX control buffer overflow.plugin |
| Plugin filesize | 3147 bytes |
| Plugin family | Peer-to-Peer |
| 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 | 2004/09/05 |
| 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 | 1.1 |
| Plugin changelog | Corrected the plugin structure and added the accuracy values in 1.1 |
| Plugin protocol | tcp |
| Plugin port | 1214 |
| Plugin procedure detection | open|send GET / HTTP/1.0\n\n|sleep|close|pattern_exists X-Kazaa-Username: |
| Plugin detection accuracy | 97 |
| Plugin comment | This plugin is not very accurate! You have to verify the existence of the potentially affected Altnet Download-Manager on the host. |
| Bug published name | CelebrityHacker |
| Bug published date | 2004/09/03 |
| Bug advisory | http://secunia.com/advisories/12446 |
| Bug affected | Altnet Download-Manager prior 4.0.0.4 |
| Bug not affected | Altnet Download-Manager newer than 4.0.0.4 or other download managers |
| Bug vulnerability class | Buffer Overflow |
| Bug description | The target system may running the peer-to-peer software Kazaa. The popular filesharing clients Kazaa and Grokster also provide a download-manager by Altnet. This is vulnerable to a buffer overflow in the IsValidFile() method in the ADM ActiveX control. An attacker may run arbitrary web code on the target system. |
| Bug solution | Disable the peer-to-peer software if not allowed nor needed. If it should run then filter incoming traffic on port tcp/1214 to prevent unwanted access to the web service. Also de-install or de-activate or uphrade the affected Download-Manager by Altnet. |
| Bug fixing time | Approx. 30 minutes |
| Bug exploit availability | No |
| Bug remote | Yes |
| Bug local | Yes |
| Bug severity | High |
| Bug popularity | 7 |
| Bug simplicity | 6 |
| Bug impact | 9 |
| Bug risk | 7 |
| Source Secunia ID | 12446 |
| Source Heise Security | 50657 |
| 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://secunia.com/product/3862/ |