OSEC

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smallftpd's version 1.0.2 Directory Transversal Vulnerability

From: aT4r InsaN3 (at4rhotmail.com)
Date: Wed Apr 30 2003 - 05:05:27 CDT


Smallftpd is a simple and small Ftp server for windows. A vulnerability
exists in smallftpd v 1.02(http://smallftpd.free.fr/) that allow
unauthorizeded users to browse the root directorys and skip access list.

CWD \..\..
250 CWD command successful.

also smallftpd v0.99 avaliable to download at http://smallftpd.free.fr too
have multiple vulnerabilities.

Denial OF service: just type "%s %s" as login and the ftp server will crash.
buffer overflows when a command have length >280 chars. example: cd
AAAAAAAAAA...

this bugs seems to be patched in the lastest version.

at4r [at] 3wdesign.es Security 2003

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