CVE-2021-3391

Name of the Vulnerable Software and Affected Versions: MobileIron Mobile@Work through 2021-03-22

Description: The issue allows attackers to distinguish among valid, disabled, and nonexistent user accounts by observing the number of failed login attempts needed to produce a Lockout error message.

Recommendations: For MobileIron Mobile@Work through 2021-03-22, consider restricting access to the login functionality to minimize the risk of exploitation until a fix is available. As a temporary workaround, limit the number of failed login attempts to prevent attackers from distinguishing among account types.