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Special Forums Cybersecurity 'Shell Shock' vulnerability in Bourne shell Post 302918938 by achenle on Friday 26th of September 2014 09:42:52 AM
Old 09-26-2014
Not the way I understand it.

Any environment variable can be used to trigger the vulnerability.

CGI arguments are passed as environment variables (CGI, not fast CGI):

Common Gateway Interface - Wikipedia, the free encyclopedia

vs

FastCGI - Wikipedia, the free encyclopedia

So any bash CGI scripts - or any bash scripts called by any CGI process - are vulnerable.

And SSH accounts are vulnerable if you allow the remote user to set ANY environment variables, such as LC_* for localization.
 

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XML(3pm)						User Contributed Perl Documentation						  XML(3pm)

NAME
CGI::XML - Perl extension for converting CGI.pm variables to/from XML SYNOPSIS
use CGI::XML; $q = new CGI::XML; # convert CGI.pm variables to XML $xml = $q->toXML; $xml = $q->toXML($root); # convert XML to CGI.pm variables $q->toCGI($xml); DESCRIPTION
The CGI::XML module converts CGI.pm variables to XML and vice versa. CGI::XML is a subclass of CGI.pm, so it reads the CGI variables just as CGI.pm would. METHODS
$q = new CGI::XML creates a new instance of CGI::XML. You also have access to all of the methods in CGI.pm. $q->toXML([$root]) where $root is an optional parameter that specifies the root element. By default, toXML will not return a root element. $q->toCGI($xml) where $xml is the XML you would like to convert to CGI.pm parameters. Values in the XML will overwrite any existing values if they exist. NOTE
CGI::XML does not currently handle multiple selections passed from HTML forms. This will be added in a future release. AUTHOR
Jonathan Eisenzopf <eisen@pobox.com> CONTRIBUTORS
David Black <dblack@candle.superlink.net> SEE ALSO
perl(1), XML::Parser(3). perl v5.8.8 2004-12-05 XML(3pm)
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