Full Disclosure mailing list archives
/bin/ls with gid=0 in Debian linux-ftpd
From: Paul Szabo <psz () maths usyd edu au>
Date: Wed, 21 Feb 2007 10:24:32 +1100
Mea culpa. A stupid little bug crept into linux-ftpd for Debian, and some other Linux distros. Some may have fixed it, but Debian hasn't. The effect is that ftpd now runs /bin/ls (for DIR and similar commands) with GID=0. Does not seem terribly dangerous as I do not seem able to trick ls into running anything, nor are there any interesting objects thusly accessible. Would become a "root hole" if someone finds a way to execute anything from /bin/ls (as started from ftpd). Please see http://bugs.debian.org/384454 for details. Cheers, Paul Szabo psz () maths usyd edu au http://www.maths.usyd.edu.au/u/psz/ School of Mathematics and Statistics University of Sydney Australia _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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- /bin/ls with gid=0 in Debian linux-ftpd Paul Szabo (Feb 20)