From: "Dmitry V. Levin" <ldv@altlinux.org> To: ALT Devel discussion list <devel@altlinux.org> Subject: Re: [devel] suid/sgid programs and temporary files Date: Tue, 16 Aug 2005 23:56:29 +0400 Message-ID: <20050816195629.GB2637@basalt.office.altlinux.org> (raw) In-Reply-To: <20050816193136.GT19097@solemn.turbinal.org> [-- Attachment #1: Type: text/plain, Size: 942 bytes --] On Tue, Aug 16, 2005 at 11:31:36PM +0400, Alexey Tourbin wrote: > В /usr/lib/perl5/File/Temp.pm есть функция проверки временного каталога, > в котором будут созданы временные файлы. > > 649 # internal routine to check to see if the directory is safe > 650 # First checks to see if the directory is not owned by the > 651 # current user or root. Then checks to see if anyone else > 652 # can write to the directory and if so, checks to see if > 653 # it has the sticky bit set [...] > Условия подчеркнутой проверки можно перевести примерно как > st.st_uid > 10 && st.st_uid != getuid() > > Вопрос: хорошо ли, что здесь используется real uid? Не лучше ли > проверять effective uid? Это зависит от семантики модуля. Другими словами, для чего он предназначен. При той информации, что содержится в комментарии, у меня складывается ощущение, что проверять effective uid было бы логичнее. -- ldv [-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]
next prev parent reply other threads:[~2005-08-16 19:56 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2005-08-16 19:31 Alexey Tourbin 2005-08-16 19:56 ` Dmitry V. Levin [this message] 2005-08-16 21:42 ` [devel] " Alexey Tourbin 2005-08-16 22:06 ` Dmitry V. Levin 2005-08-16 22:34 ` Alexey Tourbin 2005-08-16 22:50 ` Dmitry V. Levin 2005-08-16 23:33 ` Alexey Tourbin 2005-08-16 23:38 ` Dmitry V. Levin 2005-08-16 23:52 ` Alexey Tourbin 2005-08-17 7:14 ` [devel] [wiki] " Michael Shigorin 2005-08-16 22:44 ` [devel] " Alexey Tourbin 2005-08-16 22:55 ` Dmitry V. Levin 2005-08-16 23:20 ` Alexey Tourbin 2005-08-16 23:30 ` Alexey Tourbin 2005-08-17 0:37 ` Alexey Tourbin 2005-08-17 0:46 ` Alexey Tourbin 2005-08-17 3:02 ` Andrey Rahmatullin 2005-08-17 6:37 ` Alexey Tourbin
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