CVE-2023-38691
Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-287
Autenticación incorrecta
Fecha de publicación:
04/08/2023
Última modificación:
11/08/2023
Descripción
*** Pendiente de traducción *** matrix-appservice-bridge provides an API for setting up bridges. Starting in version 4.0.0 and prior to versions 8.1.2 and 9.0.1, a malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the provisioning API. The library does not check that the servername part of the `sub` parameter (containing the user's *claimed* MXID) is the the same as the servername we are talking to. A malicious actor could spin up a server on any given domain, respond with a `sub` parameter according to the user they want to act as and use the resulting token to perform provisioning requests. Versions 8.1.2 and 9.0.1 contain a patch. As a workaround, disable the provisioning API.
Impacto
Puntuación base 3.x
6.50
Gravedad 3.x
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:matrix:matrix-appservice-bridge:*:*:*:*:*:node.js:*:* | 4.0.0 (incluyendo) | 8.1.2 (excluyendo) |
| cpe:2.3:a:matrix:matrix-appservice-bridge:9.0.0:*:*:*:*:node.js:*:* |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página