FKIE_CVE-2021-21369
Vulnerability from fkie_nvd - Published: 2021-03-09 18:15 - Updated: 2024-11-21 05:48
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Hyperledger Besu is an open-source, MainNet compatible, Ethereum client written in Java. In Besu before version 1.5.1 there is a denial-of-service vulnerability involving the HTTP JSON-RPC API service. If username and password authentication is enabled for the HTTP JSON-RPC API service, then prior to making any requests to an API endpoint the requestor must use the login endpoint to obtain a JSON web token (JWT) using their credentials. A single user can readily overload the login endpoint with invalid requests (incorrect password). As the supplied password is checked for validity on the main vertx event loop and takes a relatively long time this can cause the processing of other valid requests to fail. A valid username is required for this vulnerability to be exposed. This has been fixed in version 1.5.1.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linuxfoundation | besu | * |
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"value": "Hyperledger Besu es un cliente Ethereum de c\u00f3digo abierto, compatible con MainNet, escrito en Java.\u0026#xa0;En Besu versiones anteriores a 1.5.1 se presenta una vulnerabilidad de denegaci\u00f3n de servicio que involucra al servicio HTTP JSON-RPC API .\u0026#xa0;Si la autenticaci\u00f3n de nombre de usuario y contrase\u00f1a est\u00e1 habilitada para el servicio de HTTP JSON-RPC API , antes de realizar cualquier petici\u00f3n a un endpoint de la API, el solicitante debe usar el endpoint de inicio de sesi\u00f3n para obtener un token web JSON (JWT) con sus credenciales.\u0026#xa0;Un solo usuario puede sobrecargar f\u00e1cilmente el endpoint de inicio de sesi\u00f3n con peticiones no v\u00e1lidas (contrase\u00f1a incorrecta).\u0026#xa0;Como se comprueba la validez de la contrase\u00f1a proporcionada en el bucle de eventos principal de vertx y lleva un tiempo relativamente largo, esto puede causar que el procesamiento de otras peticiones v\u00e1lidas presenten un fallo.\u0026#xa0;Es requerido un nombre de usuario v\u00e1lido para que se exponga esta vulnerabilidad.\u0026#xa0;Esto ha sido corregido en la versi\u00f3n 1.5.1"
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"lastModified": "2024-11-21T05:48:12.877",
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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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