CVE-2015-4050 Information

Description

FragmentListener in the HttpKernel component in Symfony 2.3.19 through 2.3.28 2.4.9 through 2.4.10 2.5.4 through 2.5.11 and 2.6.0 through 2.6.7 when ESI or SSI support enabled does not check if the _controller attribute is set which allows remote attackers to bypass URL signing and security rules by including (1) no hash or (2) an invalid hash in a request to /_fragment.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159513.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159603.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159610.html http://symfony.com/blog/cve-2015-4050-esi-unauthorized-access http://www.debian.org/security/2015/dsa-3276 http://www.securityfocus.com/bid/74928