ZITADEL's password reset does not respect the "Ignoring unknown usernames" setting
CVE-2023-44399

5.3MEDIUM

Key Information:

Vendor
Zitadel
Status
Zitadel
Vendor
CVE Published:
10 October 2023

Summary

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.

Affected Version(s)

zitadel < 2.37.3

References

https://github.com/zitadel/zitadel/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/zitadel/zitadel/releases/tag/v2.37.3
x_refsource_MISC
https://github.com/zitadel/zitadel/releases/tag/v2.38.0
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.