also sprach Joe Dollard <joedat_private> [2002.03.25.2114 +0100]: > The version of proftp that is in debian potato (1.2.0pre10 as > reported by running 'proftpd -v ') is vulnerable to a glob DoS > attack, as discovered on the 15th March 2001. You can verify this > bug by logging in to a server running debian stable's proftpd and > type "ls > */../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*". > This results with 100% of the CPU and memory resources being > consumed (more info at http://proftpd.linux.co.uk/critbugs.html), (please fix your line wraps!) security.debian.org has proftpd_1.2.0pre10-2.0potato1 which does not contain this bug, at least not on i386 systems: fishbowl:~> ncftp lapse.home.madduck.net NcFTP 3.1.2 (Jan 28, 2002) by Mike Gleason (ncftpat_private). Connecting to 192.168.14.3 ProFTPD 1.2.0pre10 Server (Debian) [lapse.home.madduck.net] Logging in... Anonymous access granted, restrictions apply. Logged in to localhost. ncftp / > ls */../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../* lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/.././fw1-4.1-sp3@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../../fw1-4.1-sp3@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../fw1-4.1-sp3@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/.././fw1-4.1-sp4@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../../fw1-4.1-sp4@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../fw1-4.1-sp4@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/.././fw1-4.1-sp5@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../../fw1-4.1-sp5@ lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../lics/../fw1-4.1-sp5@ <and on for another screen full> fishbowl:~> ssh lapse 'cat /etc/debian_version; uname -a' 2.2r5 Linux lapse 2.2.20 #1 Tue Feb 12 14:22:30 CET 2002 i486 regards, -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck "i'm always frank and earnest with women. uh, in new york i'm frank, and in chicago i'm ernest." -- the long kiss goodnight
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