Messages in this thread | | | Date | Tue, 25 Sep 2007 17:48:45 +0200 (CEST) | From | Jan Engelhardt <> | Subject | Re: Chroot bug |
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On Sep 26 2007 01:11, David Newall wrote: > Jan Engelhardt wrote: >> On Sep 26 2007 00:40, David Newall wrote: >> >> > Miloslav Semler pointed out that a root process can chdir("..") out of its >> > chroot. >> So what? Just do this: chdir into the root after chroot. > > I don't think so. His exploit just got me all the way out of a chroot within a > chroot within a chroot, inclusive of lots of chdirs.
Close all fds that point to directories outside the root ;-)
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