From: Chet Ramey <chet.ramey@case.edu>
To: "İsmail Dönmez" <ismail@donmez.ws>,
"Zsh Hackers' List" <zsh-workers@zsh.org>
Cc: chet.ramey@case.edu
Subject: Re: zsh seems to be vulnerable to CVE-2014-6271: remote code execution through bash
Date: Wed, 24 Sep 2014 10:59:18 -0400 [thread overview]
Message-ID: <5422DC46.80701@case.edu> (raw)
In-Reply-To: <CAJ1KOAjyBjbywavXwa+ejjQD1YjK8eCSGaESYhJxCb1e3KPjFg@mail.gmail.com>
On 9/24/14, 10:45 AM, İsmail Dönmez wrote:
> According to the vulnerability test in
> https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/
>
> [~]> echo $ZSH_VERSION
> 5.0.6
>
> [~]> env x='() { :;}; echo vulnerable' bash -c "echo this is a test"
> vulnerable
> this is a test
>
> Looks like zsh is vulnerable too.
This doesn't mean zsh is vulnerable; only that it can be used to run `env'
to craft the environment variable.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/
next prev parent reply other threads:[~2014-09-24 15:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-24 14:45 İsmail Dönmez
2014-09-24 14:54 ` Frank Terbeck
2014-09-24 14:55 ` İsmail Dönmez
2014-09-24 15:01 ` Peter Stephenson
2014-09-24 15:08 ` Frank Terbeck
2014-09-24 15:13 ` Jérémie Roquet
2014-09-24 14:55 ` Jérémie Roquet
2014-09-24 14:59 ` Chet Ramey [this message]
2014-09-25 13:11 ` Peter Stephenson
2014-09-26 14:03 ` Oliver Kiddle
2014-09-26 20:08 ` Peter Stephenson
2014-09-29 10:04 ` PATCH: safe numeric import Peter Stephenson
2014-09-29 15:24 ` Bart Schaefer
2014-10-01 14:57 ` [Bulk] " Oliver Kiddle
2014-10-02 16:06 ` Peter Stephenson
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