| Package | Affected versions | Patched versions |
|---|---|---|
| field_test | ≥ 0.2.0, < 0.4.0 | 0.4.0 |
| field test | ≥ 0.2.0, ≤ 0.3.2 |
The Field Test dashboard is vulnerable to cross-site request forgery (CSRF) with non-session based authentication methods in versions v0.2.0 through v0.3.2.
The Field Test dashboard is vulnerable to CSRF with non-session based authentication methods, like basic authentication. Session-based authentication methods (like Devise's default authentication) are not affected.
A CSRF attack works by getting an authorized user to visit a malicious website and then performing requests on behalf of the user. In this instance, a single endpoint is affected, which allows for changing the variant assigned to a user.
All users running an affected release should upgrade immediately.
Field Test uses the protect_from_forgery method from Rails to prevent CSRF. However, this defaults to :null_session, which has no effect on non-session based authentication methods. This has been changed to protect_from_forgery with: :exception.
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