| GEN:SID | 1:489 |
| Message | INFO FTP no password |
| Summary | This event is generated when an attempt is made to log into an ftp server with an empty password.
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| Impact | Possible unauthorized access, invalid login attempt.
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| Detailed Information | An attempt was made to log into an ftp server with an empty password. This is an unusual behavior as every ftp login usually has a password, even anonymous ones. An empty password might mean the system was already compromised and a username exists with no password.
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| Affected Systems | Machines running ftp servers.
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| Attack Scenarios | An attacker gains access to the system via a vulnerability, creates a login without a password and then tries to ftp to the system with that login.
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| Ease of Attack | Simple, no exploit software required.
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| Corrective Action | Check all the usernames on the system for empty passwords.
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| Additional References | Arachnids: http://www.whitehats.com/info/IDS322
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| Rule References | arachnids: 322
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