CVE-2015-4050: Improper Access Control

June 2, 2015 (updated December 30, 2016)

FragmentListener in the HttpKernel component in Symfony, 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.

References

symfony.com/cve-2015-4050

Detect and mitigate CVE-2015-4050 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →