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CVE-2019-5464

Description

A flawed DNS rebinding protection issue was discovered in GitLab CE/EE 10.2 and later in the `url_blocker.rb` which could result in SSRF where the library is utilized.

POC

Reference

- https://gitlab.com/gitlab-org/gitlab-ce/issues/63959

- https://hackerone.com/reports/632101

Github

- https://github.com/20142995/nuclei-templates

- https://github.com/ARPSyndicate/cvemon

- https://github.com/Ch0pin/vulnerability-review

- https://github.com/cyb3r-w0lf/nuclei-template-collection