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Date: Thu, 28 Jun 2012 08:13:14 +0200
From: Pierre Joye <>
Subject: Re: PHP information disclosure via easter egg ?=PHPB8B5F2A0-3C92-11d3-A3A9-4C7B08C10000

hi Kurt!

On Thu, Jun 28, 2012 at 7:12 AM, Kurt Seifried <> wrote:

> So simply querying:
> ?=PHPB8B5F2A0-3C92-11d3-A3A9-4C7B08C10000
> e.g.:
> 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).
> This has already been reported, but no CVE was assigned:
> It is mentioned in however it is
> enabled by default:
> ; Decides whether PHP may expose the fact that it is installed on the
> server
> ; (e.g. by adding its signature to the Web server header).  It is no
> security
> ; threat in any way, but it makes it possible to determine whether you
> use PHP
> ; on your server or not.
> ;
> expose_php = On

Why would it require a CVE and why is it seen as a security issue?
Sure it could be, like unfiltered input and the like but...


@pierrejoye | |

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