CVE-2023-44399

Medium

Description

ZITADEL provides identity infrastructure. In versions 2.37.2 and prior, ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. While this settings was properly working during the authentication process it did not work correctly on the password reset flow. This meant that even if this feature was active that an attacker could use the password reset function to verify if an account exist within ZITADEL. This bug has been patched in versions 2.37.3 and 2.38.0. No known workarounds are available.

SeverityMedium
CVSS5.3
Exploit probability—
ProductZitadel
PublishedOct 10, 2023
First seenOct 10, 2023
Weakness typeCWE-640CWE-640

How to fix

Update
  • github.com/zitadel/zitadel2.37.3 or later

Affected products

ProductAffected versionsFixed in
zitadel zitadelv ≤ 2.37.2—
github.com/zitadel/zitadelGov < 2.37.32.37.3

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