Article View: comp.security.unix
Article #6Re: Security hole with WU-FTPD
From: M. Buchenrieder
Date: Mon, 18 Jan 1999 00:00
Date: Mon, 18 Jan 1999 00:00
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unruh@physics.ubc.ca (Bill Unruh) writes:
[...]
>His comment is that while login does not allow a remote root login with no
>password, ftp does allow a root login with no password. This is what he
>is calling the bug in ftpd. It certainly is an inconsistancy between
>the two.
Agreed. Perhaps I should have added that remote root logins are
prevented generally based on the EUID used, not the actual loginname
(at least, with standard security precautions activated). From that
point of view, this is a WU-FTPD flaw.
>It is also true that this bug is minor compared to the bug which allowed
>a root user to be entered into passwd without a password.
Yup.
Michael
--
Michael Buchenrieder * mibu@scrum.greenie.muc.de * http://www.muc.de/~mibu
Lumber Cartel Unit #456 (TINLC) & Official Netscum
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10952f,e0782a6bf0e6f7aa X-Google-Attributes: gid10952f,public X-Google-Thread: 102983,e0782a6bf0e6f7aa X-Google-Attributes: gid102983,public X-Google-Thread: 10669a,e0782a6bf0e6f7aa X-Google-Attributes: gid10669a,public X-Google-Thread: fa777,e0782a6bf0e6f7aa X-Google-Attributes: gidfa777,public From: mibu@scrum.muc.de (M. Buchenrieder) Subject: Re: Security hole with WU-FTPD Date: 1999/01/18 Message-ID: <781ous$uvl$154@news4.muc.eurocyber.net> X-Deja-AN: 434366985 References: <369FBEFB.EB1531B6@gds.ca> <0yRn2.85285$c8.41002764@hme2.newscontent-01.sprint.ca> <8YRn2.250$oD6.15990@burlma1-snr1.gtei.net> <F5n9LH.AnB@scrum.muc.de> <SS3o2.269$oD6.18936@burlma1-snr1.gtei.net> <F5p6AI.569@scrum.muc.de> <77tkol$b3b$1@nntp.ucs.ubc.ca> Organization: private Linux-site Newsgroups: comp.security.unix,redhat.networking.general,aus.computers.linux,comp.os.linux.networking