CVE-2023-39522 : Vulnerability Insights and Analysis
Discover how CVE-2023-39522 exposes username enumeration in goauthentik Identity Provider. Learn about impact, affected versions, and mitigation steps.
A Username enumeration attack in goauthentik has been identified as CVE-2023-39522. This article provides an overview of the vulnerability, its impact, technical details, and mitigation steps.
Understanding CVE-2023-39522
The vulnerability CVE-2023-39522 involves an observable discrepancy in the goauthentik Identity Provider, allowing attackers to determine if a username exists through a recovery flow identification stage.
What is CVE-2023-39522?
goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage, an attacker can ascertain the existence of a username. The vulnerability impacts setups configured with a specific recovery flow, potentially revealing user usernames/email addresses.
The Impact of CVE-2023-39522
Users on systems utilizing the vulnerable recovery flow are at risk of having their usernames/email addresses exposed. Attackers can enumerate user existence easily as a clear message is displayed when a user does not exist. Depending on the configuration, attackers can check for user accounts using usernames, email addresses, or both.
Technical Details of CVE-2023-39522
Vulnerability Description
goauthentik's vulnerability allows for username enumeration through the recovery flow identification stage, disclosing user account existence.
Affected Systems and Versions
The vulnerability affects goauthentik's 'authentik' product versions >= 2023.6.0 and < 2023.6.2, as well as versions < 2023.5.6.
Exploitation Mechanism
Attackers exploit the recovery flow identification stage in goauthentik systems to determine the existence of usernames/emails, impacting users with accounts on platforms with the vulnerable configuration.
Mitigation and Prevention
Immediate Steps to Take
Users are strongly advised to upgrade to versions 2023.5.6 or 2023.6.2 to address the vulnerability. No known workarounds exist for this issue.
Long-Term Security Practices
It is recommended to regularly update systems and follow secure configuration practices to mitigate the risk of such vulnerabilities.
Patching and Updates
Ensure that goauthentik's 'authentik' product is updated to versions 2023.5.6 or 2023.6.2 to prevent username enumeration attacks.