CVE-2024-39896

描述

### Impact When relying on SSO providers in combination with local authentication it can be possible to enumerate existing SSO users in the instance. This is possible because if an email address exists in Directus and belongs to a known SSO provider then it will throw a "helpful" error that the user belongs to another provider. ### Reproduction 1. Create a user using a SSO provider `test@directus.io`. 2. Try to log-in using the regular login form (or the API) 3. When using a valid email address | **APP** | **API** | | --- | --- | |  |  | 4. When using an invalid email address | **APP** | **API** | | --- | --- | |  |  | 5. Using this differing error it is possible to determine whether a specific email address is present in the Directus instance as an SSO user. ### Workarounds When only using SSO for authentication then you can work around this issue by disabling local login using the following environment variable `AUTH_DISABLE_DEFAULT="true"` ### References Implemented as feature in https://github.com/directus/directus/pull/13184 https://owasp.org/www-project-web-security-testing-guide/v42/4-Web_Application_Security_Testing/03-Identity_Management_Testing/04-Testing_for_Account_Enumeration_and_Guessable_User_Account

如何修補 CVE-2024-39896

要修補 CVE-2024-39896,請將受影響套件升級到下列已修補版本。

• —升級至 10.13.0 或更新版本

CVE-2024-39896 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 9.11, < 10.13.0