Messages in this thread | | | Date | Mon, 29 Dec 1997 11:55:05 +0200 | From | Yuri Kuzmenko <> | Subject | again security proposal |
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I have some security proposal. Hardlinks in given filesystem can created by any user. Well known hardlink attack ($ ln /etc/passwd ~/.somestuff; # chown user /home/user -R; $ vi ~/.somestuff) now maybe done by any user. Any sysadmin can't remember all her security "holes" (i.e. some chown user.group ... -R in system crontabs). I think that we must _CHECK_ permissions for files before make hardlink. If this conflicts with some standards, maybe needed to make this configurable.
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