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Vulnerability in Azure Active Directory Authentication Library

High severity GitHub Reviewed Published Aug 16, 2019 to the GitHub Advisory Database • Updated Jan 9, 2023

Package

nuget microsoft.identitymodel.clients.activedirectory (NuGet)

Affected versions

>= 5.0.0, <= 5.1.1

Patched versions

5.2.0

Description

An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens, aka 'Azure Active Directory Authentication Library Elevation of Privilege Vulnerability'.

References

Reviewed Aug 15, 2019
Published to the GitHub Advisory Database Aug 16, 2019
Last updated Jan 9, 2023

Severity

High
8.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

No CWEs

CVE ID

CVE-2019-1258

GHSA ID

GHSA-xc6x-cq47-9chw
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