stimulus_reflex is a system to extend the capabilities of both Rails and Stimulus by intercepting user interactions and passing them to Rails over real-time websockets. In affected versions more methods than expected can be called on reflex instances. Being able to call some of them has security implications. To invoke a reflex a websocket message of the following shape is sent: `\"target\":\"[class_name]#[method_name]\",\"args\":[]`. The server will proceed to instantiate `reflex` using the provided `class_name` as long as it extends `StimulusReflex::Reflex`. It then attempts to call `method_name` on the instance with the provided arguments. This is problematic as `reflex.method method_name` can be more methods that those explicitly specified by the developer in their reflex class. A good example is the instance_variable_set method. This vulnerability has been patched in versions 3.4.2 and 3.5.0.rc4. Users unable to upgrade should: see the backing GHSA advisory for mitigation advice.
References
Configurations
No configuration.
History
21 Nov 2024, 09:05
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References | () http://seclists.org/fulldisclosure/2024/Mar/16 - | |
References | () https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83 - | |
References | () https://github.com/stimulusreflex/stimulus_reflex/commit/538582d240439aab76066c72335ea92096cd0c7f - | |
References | () https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2 - | |
References | () https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4 - | |
References | () https://github.com/stimulusreflex/stimulus_reflex/security/advisories/GHSA-f78j-4w3g-4q65 - |
13 Mar 2024, 21:16
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References |
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13 Mar 2024, 12:33
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Summary |
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12 Mar 2024, 20:15
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New CVE |
Information
Published : 2024-03-12 20:15
Updated : 2024-11-21 09:05
NVD link : CVE-2024-28121
Mitre link : CVE-2024-28121
CVE.ORG link : CVE-2024-28121
JSON object : View
Products Affected
No product.
CWE
CWE-470
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')