oss-security - CVE request: PHP object insertion in Contao CMS <= 3.2.5

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Date: Mon, 3 Feb 2014 10:54:54 +0000
From: Pedro Ribeiro <pedrib@...il.com>
To: oss-security@...ts.openwall.com
Cc: Leo Feyer <leo@...tao.org>, Andreas Schempp <andreas.schempp@...minal42.ch>
Subject: CVE request: PHP object insertion in Contao CMS <= 3.2.5

Hi,

I have discovered a vulnerability that might lead to code execution in
Contao CMS <= 3.2.4
Contao CMS <= 3.2.4 does not properly validate user input in several
locations which is then passed directly into PHP's unserialize.

This has been fixed in Contao 2.3.5 as per commit:
https://github.com/contao/core/commit/8c9cb044bdc887a8202bb65a64545c025664f957
and
https://github.com/contao/core/commit/1717336598fdcf1ed3f4ad488e140147cb31516d

Announcements can be found at

https <https://contao.org/en/news/contao-3_2_5.html>://<https://contao.org/en/news/contao-3_2_5.html>
contao.org <https://contao.org/en/news/contao-3_2_5.html>/<https://contao.org/en/news/contao-3_2_5.html>
en <https://contao.org/en/news/contao-3_2_5.html>/news/<https://contao.org/en/news/contao-3_2_5.html>
contao <https://contao.org/en/news/contao-3_2_5.html>-3_2_5.<https://contao.org/en/news/contao-3_2_5.html>
html <https://contao.org/en/news/contao-3_2_5.html>

https <https://contao.org/en/news/contao-2_11_14.html>://<https://contao.org/en/news/contao-2_11_14.html>
contao.org <https://contao.org/en/news/contao-2_11_14.html>/<https://contao.org/en/news/contao-2_11_14.html>
en <https://contao.org/en/news/contao-2_11_14.html>/news/<https://contao.org/en/news/contao-2_11_14.html>
contao <https://contao.org/en/news/contao-2_11_14.html>-2_11_14.<https://contao.org/en/news/contao-2_11_14.html>
html <https://contao.org/en/news/contao-2_11_14.html>

Thanks to the Contao developers for being so responsive.
The full report can be found at my repo in
https://github.com/pedrib/PoC/blob/master/contao-3.2.4.txt

Can you please assign a CVE for the vulnerability described above?

Thanks in advance.

Regards,

Pedro Ribeiro
Agile Information Security

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