CVE-2015-4050

EPSS 8.3%

Vexday Risk Score

18Low

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Functional exploit

Automatable exploit available (Nuclei/Metasploit).

CVSS —EPSS 8.3%KEV nãoPoC —Nuclei simMetasploit —Patch referenciado

Lifecycle

02 Jun 2015Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

Affected products

n/a · n/a

References

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