Messages in this thread | | | Subject | Re: odd chown difference between 2.0 and 2.1pre kernels | Date | Mon, 11 Jan 1999 18:57:52 -0500 | From | "Brandon S. Allbery KF8NH" <> |
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In message <m0zzjRk-0007U2C@the-village.bc.nu>, Alan Cox writes: +----- | > In message <19990109215152.C32046@kitenet.net>, Joey Hess writes: | > | On a 2.1pre4 machine: | > | root@kite:~>ls -l foo | > | -rwsrw-r-- 1 root joey 0 Jan 9 17:13 foo* | > | root@kite:~> chown root.root foo; ls -l foo | > | -rwsrw-r-- 1 root root 0 Jan 9 17:13 foo* | > | > GAK!!! Security flaw here, methinks. chown should unconditionally clear | > setuid and setgid. | | Except when done by root +--->8
Especially when done by root, I'd think. Less risk of inadvertently opening a security hole --- if I want the thing set[ug]id I should have to explicitly make it so.
-- brandon s. allbery [os/2][linux][solaris][japh] allbery@kf8nh.apk.net system administrator [WAY too many hats] allbery@ece.cmu.edu carnegie mellon / electrical and computer engineering KF8NH We are Linux. Resistance is an indication that you missed the point.
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