Date: Sat, 23 Nov 2002 19:57:30 -0600
From: Matthew Murphy <[email protected]>
To: SecurITeam News <[email protected]>, BugTraq <[email protected]>,
Subject: acFTP Authentication Issue
acFTP is an open-source FTP daemon for Windows platforms
(http://www.sourceforge.net/projects/acftp) that offers more functionality
than many proprietary servers (including the MS FTP service). The
authentication code of acFTP contains a flaw -- specifically, the server
treats users as logged in without a valid password. This results in
mis-representation of server activity in log files, and possibly privilege
elevation.
For example:
USER private
PASS #
This leads it to reject my password, but I can not log in with another set
of credentials, and my log activity appears as "private" instead of the
appropriate "-" or "***".
