Messages in this thread | | | Date | Wed, 26 Sep 2007 06:21:04 +0930 | From | David Newall <> | Subject | Re: Chroot bug |
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Jan Engelhardt wrote: > 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 ;-) >
Nope, still gets out. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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