mc security exposure
- From: George Toft <george georgetoft com>
- To: mc gnome org
- Subject: mc security exposure
- Date: Sat, 09 Feb 2002 12:57:25 -0500
Symptom
Using the FTP feature of mc shows the password in the file transfer
screen. See snippet below (sorry, the ASCII art didn't transfer well):
lqqqqqqqqqqqqqqqqqqqqqqqqqqq Copy qqqqqqqqqqqqqqqqqqqqqqqqqqqk
x Copy 4 files with source mask: x
x * [^] x
x [x] Using shell patterns x
x to: x
x /#ftp:mylogin:mypasswd georgetoft com/httpdocs/tautog [^] x
x [ ] follow Links [ ] Dive into subdir if exists x
x [x] preserve Attributes [ ] Stable Symlinks x
x [< Ok >] [ Background ] [ Cancel ] x
x x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
(I edited my username and password for obvious reasons.)
Recommendation
I feel this is an exposure that need not exist. If mc is
being used in a demonstration, or when people are around,
the initial logon can be shielded from view, but when transferring
many files, this is not practical.
MC Data
OS: Linux (SuSE 7.3)
mc -V:
The Midnight Commander 4.5.54
Edition: text mode
Virtual File System: tarfs, extfs, ftpfs, mcfs, undelfs
With builtin Editor
Using S-lang library with terminfo database
With subshell support: as default
with mouse support on xterm and the Linux console.
Using locale "en_US" (from environment variable LANG)
Regards,
George
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