[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 22 Oct 2015 22:40:29 -0400
From: Robert Watson <robertcwatson1@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE Request: BusyBox tar directory traversal
Apologies if I'm naive but... since /tmp is world writable, how is this a
vulnerability?
*Trust in truth keeps hope aliverobertcwatson1@...il.com
<robertcwatson1@...il.com>www.docsalvage.info
<http://www.docsalvage.info>www.CivicChorale.org
<http://www.CivicChorale.org>*
<http://www.wunderground.com/cgi-bin/findweather/getForecast?query=Tallahassee,%20FL>
<https://www.healthcare.gov/>
On Wed, Oct 21, 2015 at 11:36 AM, Tyler Hicks <tyhicks@...onical.com> wrote:
> Hello - The BusyBox implementation of tar will extract a symlink that
> points outside of the current working directory and then follow that
> symlink when extracting other files. This allows for a directory
> traversal attack when extracting untrusted tarballs.
>
> This behavior was documented in the BusyBox source with the following
> 2011 commit:
>
>
> http://git.busybox.net/busybox/commit/?id=a116552869db5e7793ae10968eb3c962c69b3d8c
>
> I've created an upstream bug report:
>
> https://bugs.busybox.net/8411
>
> Can we get a CVE assigned to track this? Thanks!
>
> Tyler
>
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
