CVE-2021-3391

Description

MobileIron Mobile@Work through 2021-03-22 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

5.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.36%

Third-Party Advisory github.com Third-Party Advisory optiv.com

Affected: n/a n/a

References

Link	Tags
https://www.mobileiron.com/en/blog/mobileiron-security-updates-available	not applicable
https://www.optiv.com/explore-optiv-insights/source-zero/mobileiron-mdm-contains-static-key-allowing-account-enumeration	third party advisory technical description
https://github.com/optiv/rustyIron	third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3391?: CVE-2021-3391 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3391?: To fix CVE-2021-3391, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3391 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-3391 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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