Date: Wed, 24 Sep 2014 20:32:42 +0400 From: gremlin@...mlin.ru To: oss-security@...ts.openwall.com Subject: Re: CVE-2014-6271: remote code execution through bash On 24-Sep-2014 22:01:50 +0600, Alexander E. Patrakov wrote: >> I see no good workaround. Starting the forced command with >> "unset >SSH_ORIGINAL_COMMAND &&" does not help - we'd need >> to unset the variable before starting bash, not from bash. > Won't installing dash and setting the shell of users who have > forced commands to dash mitigate this somehow? Possibly, that will require making /bin/sh symlink to point at dash (or zsh, or whatever) as well... -- Alexey V. Vissarionov aka Gremlin from Kremlin <gremlin ПРИ gremlin ТЧК ru> GPG: 8832FE9FA791F7968AC96E4E909DAC45EF3B1FA8 @ hkp://keys.gnupg.net
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