FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, which makes it easier for remote attackers to obtain access via a brute-force attack.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pyftpdlib | G.rodola | * | 0.1.1 (including) |
| Pyftpdlib | G.rodola | 0.1 (including) | 0.1 (including) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- http://code.google.com/p/pyftpdlib/issues/detail?id=20
- http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
- http://code.google.com/p/pyftpdlib/source/detail?r=23
- http://code.google.com/p/pyftpdlib/source/diff?spec=svn23\u0026r=23\u0026format=side\u0026path=/trunk/pyftpdlib/FTPServer.py
- http://code.google.com/p/pyftpdlib/issues/detail?id=20
- http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
- http://code.google.com/p/pyftpdlib/source/detail?r=23
- http://code.google.com/p/pyftpdlib/source/diff?spec=svn23\u0026r=23\u0026format=side\u0026path=/trunk/pyftpdlib/FTPServer.py