En bref
- CVE-2019-1258 est une vulnérabilité ÉLEVÉE (CVSS 8.8) touchant microsoft.identitymodel.clients.activedirectory, active directory authentication library (microsoft), nuget (microsoft).
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 3.8%, plus élevée que 90.0% des vulnérabilités.
- Correctif : mettre à jour vers 5.2.0 ou plus récent.
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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