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Date: Thu, 28 Jun 2012 12:34:17 +0200
From: Johannes Schlüter <johannes@....net>
To: Kurt Seifried <kseifried@...hat.com>
Cc: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com>,
security@....net
Subject: Re: PHP information disclosure via easter egg
?=PHPB8B5F2A0-3C92-11d3-A3A9-4C7B08C10000
Hi,
On Wed, 2012-06-27 at 23:12 -0600, Kurt Seifried wrote:
> http://php.net/?=PHPB8B5F2A0-3C92-11d3-A3A9-4C7B08C10000
>
> shows authors, SAPI modules (and their authors) and normal modules
> (and their authors), resulting in a significant information disclosure
> (version #'s can be narrowed down from the authors list).
I have barely seen attackers actually trying to figure out the version
number. 99% are directly trying to exploit known vectors using some
scripts. And to get the version number there's a way simpler way, also
controlled using the same php.ini setting:
$ echo "HEAD / HTTP/1.0\n" | nc www.php.net 80 | grep PHP
Server: Apache/1.3.41 (Unix) PHP/5.2.17
X-Powered-By: PHP/5.2.17
johannes
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