CVE-2019-1258
Last modified
CVE-2019-1258 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.80% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | Active Directory Authentication Library | >= 5.0.5, < 5.2.0 | — |
| Microsoft | Active Directory Authentication Library | 5.0.0 | Preview |
| Microsoft | Active Directory Authentication Library | 5.0.1 | Preview |
| Microsoft | Active Directory Authentication Library | 5.0.2 | Preview |
| Microsoft | Active Directory Authentication Library | 5.0.3 | Preview |
| Microsoft | Nuget | 5.2.0 | — |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
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