En resumen
- CVE-2019-1258 es una vulnerabilidad ALTO (CVSS 8.8) que afecta a microsoft.identitymodel.clients.activedirectory, active directory authentication library (microsoft), nuget (microsoft).
- Probabilidad de explotación en los próximos 30 días (EPSS): 3.8%, mayor que el 90.0% de las vulnerabilidades.
- Solución: actualizar a 5.2.0 o posterior.
Description
An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens, aka 'Azure Active Directory Authentication Library Elevation of Privilege Vulnerability'.
NVD description
An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens. This vulnerability allows an authenticated attacker to perform actions in context of another user.
The authenticated attacker can exploit this vulneraiblity by accessing a service configured for On-Behalf-Of flow that assigns incorrect tokens.
This security update addresses the vulnerability by removing fallback cache look-up for On-Behalf-Of scenarios.
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