Zitadel allows User Enumeration by loginname attribute normalization
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.63.9, 2.64.6, 2.65.7, 2.66.16, 2.67.13, and 4 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Zitadel is open-source identity infrastructure software. ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. If enabled, ZITADEL will show the password prompt even if the user doesn't exist and report "Username or Password invalid". While the setting was correctly respected during the login flow, the user's username was normalized leading to a disclosure of the user's existence. This vulnerability is fixed in 2.71.6, 2.70.8, 2.69.9, 2.68.9, 2.67.13, 2.66.16, 2.65.7, 2.64.6, and 2.63.9.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- zitadel zitadel
From 2.62.0 · fixed in 2.63.9; From 2.64.0-rc.1 · fixed in 2.64.6; From 2.65.0-rc.1 · fixed in 2.65.7; From 2.66.0-rc.1 · fixed in 2.66.16; From 2.67.0-rc.1 · fixed in 2.67.13; From 2.68.0-rc.1 · fixed in 2.68.9; From 2.69.0-rc.1 · fixed in 2.69.9; From 2.70.0-rc.1 · fixed in 2.70.8; From 2.71.0-rc.1 · fixed in 2.71.6