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.
2019-08-14T21:15:19.173
2024-11-21T04:36:21.140
Modified
CVSSv3.0: 8.8 (HIGH)
AV:N/AC:L/Au:S/C:P/I:P/A:P
8.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | microsoft | active_directory_authentication_library | < 5.2.0 | Yes |
| Application | microsoft | active_directory_authentication_library | 5.0.0 | Yes |
| Application | microsoft | active_directory_authentication_library | 5.0.1 | Yes |
| Application | microsoft | active_directory_authentication_library | 5.0.2 | Yes |
| Application | microsoft | active_directory_authentication_library | 5.0.3 | Yes |
| Application | microsoft | nuget | 5.2.0 | Yes |