[27992] in bugtraq
acFTP Authentication Issue
daemon@ATHENA.MIT.EDU (Matthew Murphy)
Mon Nov 25 20:07:07 2002
Message-ID: <003d01c2935c$d8f67520$e62d1c41@kc.rr.com>
From: "Matthew Murphy" <mattmurphy@kc.rr.com>
To: "SecurITeam News" <news@securiteam.com>,
"BugTraq" <bugtraq@securityfocus.com>,
"VulnWatch" <vulnwatch@vulnwatch.org>,
"Vuln-Dev" <vuln-dev@securityfocus.com>
Date: Sat, 23 Nov 2002 19:57:30 -0600
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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 "***".
