Advisory details:
github_osv / GHSA-jgf4-vwc3-r46v
| Advisory ID | github_osv/GHSA-jgf4-vwc3-r46v |
| Aliases |
CVE-2024-39896
|
| Summary | Directus Allows Single Sign-On User Enumeration ### 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 |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 7.8 |
| Risk | 3.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 7.5 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/07/GHSA-jgf4-vwc3-r46v/GHSA-jgf4-vwc3-r46v.json |
| cvssv4 | 8.7 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/07/GHSA-jgf4-vwc3-r46v/GHSA-jgf4-vwc3-r46v.json |
| generic_textual | HIGH |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/directus/directus | ||
| https://github.com/directus/directus/commit/454cb534d6ffa547feb11f4d74b932ae7368dae2 | ||
| CVE-2024-39896 | https://nvd.nist.gov/vuln/detail/CVE-2024-39896 | |
| GHSA-jgf4-vwc3-r46v | https://github.com/directus/directus/security/advisories/GHSA-jgf4-vwc3-r46v |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2024-07-30T18:30:43Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2024/39xxx/CVE-2024-39896.json
Source Advisory: vulnrichment/CVE-2024-39896
[{'Exploitation': 'poc'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]