CVE-2024-27086 LOW

CVE-2024-27086: MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service

Vendor Azuread
Product microsoft-authentication-library-for-dotnet
Weakness CWE-926
Published April 16, 2024
Last update August 2, 2024

CVSS base score

3.9/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

The MSAL library enabled acquisition of security tokens to call protected APIs. MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.0 are impacted by a low severity vulnerability. A malicious application running on a customer Android device can cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration. MSAL.NET version 4.60.1 includes the fix. As a workaround, a developer may explicitly mark the MSAL.NET activity non-exported.

Key dates

02Disclosure timeline

April 16, 2024 CVE published
August 2, 2024 Record updated