Azure Active Directory Authentication Library Elevation of Privilege Vulnerability (Microsoft ADAL.NET)
En bref
- Source
- NVD
- EPSS
- EPSS 3.80 % · centile 90 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- microsoft
- Statut NVD
- Modified
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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.
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.0 | HIGH 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-xc6x-cq47-9chw — Vulnerability in Azure Active Directory Authentication Library
Références européennes
- ENISA EUVD · EUVD-2019-0644
- GCVE · GCVE-0-2019-1258
Avis du CERT-FR
- CERTFR-2019-AVI-438 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2019-AVI-437 — Multiples vulnérabilités dans Microsoft .Net · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:microsoft:active_directory_authentication_library:*:*:*:*:*:.net:*:*≥ 5.0.5 < 5.2.0cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.0:preview:*:*:*:.net:*:*cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.1:preview:*:*:*:.net:*:*cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.2:preview:*:*:*:.net:*:*cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.3:preview:*:*:*:.net:*:*cpe:2.3:a:microsoft:nuget:5.2.0:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Microsoft · ADAL.NET | affected 5.0.0 < publication |
| Microsoft · Nuget 5.2.0 | affected 5.0.0 < publication |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |