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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Active_directory_authentication_library | Microsoft | 5.0.5 (including) | 5.2.0 (excluding) |
| Active_directory_authentication_library | Microsoft | 5.0.0-preview (including) | 5.0.0-preview (including) |
| Active_directory_authentication_library | Microsoft | 5.0.1-preview (including) | 5.0.1-preview (including) |
| Active_directory_authentication_library | Microsoft | 5.0.2-preview (including) | 5.0.2-preview (including) |
| Active_directory_authentication_library | Microsoft | 5.0.3-preview (including) | 5.0.3-preview (including) |
| Nuget | Microsoft | 5.2.0 (including) | 5.2.0 (including) |