CVE-2024-28121 (GCVE-0-2024-28121)
Vulnerability from cvelistv5 – Published: 2024-03-12 19:44 – Updated: 2025-02-13 17:47
VLAI?
Title
Reflex arbitrary method call in stimulus_reflex
Summary
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.
Severity ?
8.8 (High)
CWE
- CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| stimulusreflex | stimulus_reflex |
Affected:
>= 3.5.0.rc1, < 3.5.0.rc4
Affected: < 3.4.2 |
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[\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83\", \"name\": \"https://github.com/stimulusreflex/stimulus_reflex/blob/0211cad7d60fe96838587f159d657e44cee51b9b/app/channels/stimulus_reflex/channel.rb#L83\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2\", \"name\": \"https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.4.2\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4\", \"name\": \"https://github.com/stimulusreflex/stimulus_reflex/releases/tag/v3.5.0.rc4\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2024/Mar/16\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-470\", \"description\": \"CWE-470: Use of Externally-Controlled Input to Select Classes or Code (\u0027Unsafe Reflection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-03-12T19:44:29.591Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-28121\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-15T19:34:43.636Z\", \"dateReserved\": \"2024-03-04T14:19:14.060Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2024-03-12T19:44:29.591Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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