high8.8
CVE-2019-1258
An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Active Directory Authentication Library | from 5.0.5 before 5.2.0 Versions 5.0.0, 5.0.1, 5.0.2, 5.0.3 |
| Microsoft | Nuget | Version 5.2.0 |