Re: inventive syntax, at least

Arnt Gulbrandsen <[email protected]> Sat, 15 Nov 2014 12:20:49 +0100
Newsgroups gmane.ietf.rfc822
Message-ID <[email protected]>
On Saturday, November 15, 2014 5:18:02 AM CEST, John Levine wrote:
> I would think that sendmail and postfix .forward files would have the
> same problem.

Postfix doesn't write GIGO crap to environment variables. Qmail's general 
philosophy is to not parse and thereby shrink its own attack surface, 
Postfix' is to parse and think about the result.

Postfix will write e.g. the recipient localpart to the environment, so if 
your login name were (){etc I suppose Postfix would be vulnerable in your 
case.

No idea about sendmail, I haven't used that since the days of 5.65.

Arnt

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