lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <46F92C17.3060405@davidnewall.com>
Date:	Wed, 26 Sep 2007 01:11:11 +0930
From:	David Newall <david@...idnewall.com>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
CC:	"Serge E. Hallyn" <serge@...lyn.com>,
	Bill Davidsen <davidsen@....com>,
	Philipp Marek <philipp@...ek.priv.at>, 7eggert@....de,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	majkls <majkls@...pere.com>, bunk@...tum.de,
	linux-kernel@...r.kernel.org
Subject: Re: Chroot bug

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.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ