CVE-2024-28239: URL Redirection to Untrusted Site in OAuth2/OpenID in directus
Summary The authentication API has a redirect parameter that can be exploited as an open redirect vulnerability as the user tries to log in via the API URL https://docs.directus.io/reference/authentication.html#login-using-sso-providers /auth/login/google?redirect for example.
Details There's a redirect that is done after successful login via the Auth API GET request to directus/auth/login/google?redirect=http://malicious-fishing-site.com, which I think is here: https://github.com/directus/directus/blob/main/api/src/auth/drivers/oauth2.ts#L394. While credentials don't seem to be passed to the attacker site, the user can be phished into clicking a legitimate directus site and be taken to a malicious site made to look like a an error message "Your password needs to be updated" to phish out the current password.
PoC Turn on any auth provider in Directus instance. Form a link to directus-instance/auth/login/:providerid?redirect=http://malicious-fishing-site.com, login and get taken to malicious-site. Tested on the ory OAuth2 integration.
Impact Users who login via OAuth2 into Directus.
Other sources
Directus is a real-time API and App dashboard for managing SQL database content. The authentication API has a redirect parameter that can be exploited as an open redirect vulnerability as the user tries to log in via the API URL. There's a redirect that is done after successful login via the Auth API GET request to directus/auth/login/google?redirect=http://malicious-fishing-site.com. While credentials don't seem to be passed to the attacker site, the user can be phished into clicking a legitimate directus site and be taken to a malicious site made to look like a an error message "Your password needs to be updated" to phish out the current password. Users who login via OAuth2 into Directus may be at risk. This issue has been addressed in version 10.10.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-28239?
CVE-2024-28239 is classified as a moderate severity open redirect vulnerability in the authentication API.
How do I fix CVE-2024-28239?
To fix CVE-2024-28239, update Directus to version 10.10.0 or later.
What type of vulnerability is CVE-2024-28239?
CVE-2024-28239 is an open redirect vulnerability that can be exploited through the authentication API.
Which versions of Directus are affected by CVE-2024-28239?
CVE-2024-28239 affects Directus versions prior to 10.10.0.
What impact does CVE-2024-28239 have on users?
CVE-2024-28239 can potentially lead to phishing attacks by allowing attackers to redirect users to malicious sites.