CVE-2023-32312: Client secret not mandatory in UmbracoIdentityExtensions
First published: Fri Jun 09 2023(Updated: )
UmbracoIdentityExtensions is an Umbraco add-on package that enables easy extensibility points for ASP.Net Identity integration. In affected versions client secrets are not required which may expose some endpoints to untrusted actors. Since Umbraco is not a single-page application, the implicit flow is not safe. For traditional MVC applications, it is recommended to use the authorization code flow, which requires the client to authenticate with the authorization server using a client secret. This flow provides better security, as it involves exchanging an authorization code for an access token and/or ID token, rather than directly returning tokens in the URL fragment. This issue has been patched in commit `e792429f9` and a release to Nuget is pending. Users are advised to upgrade when possible.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Umbraco Umbraco Identity Extensibility | <=2.0.0 |
Remedy
https://github.com/umbraco/UmbracoIdentityExtensions/commit/e792429f9d1fa25c1ba4f7a61d23ee02fedd6dc9
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Reference Links
- https://docs.umbraco.com/umbraco-cms/reference/security/external-login-providers
- https://github.com/umbraco/UmbracoIdentityExtensions/commit/e792429f9d1fa25c1ba4f7a61d23ee02fedd6dc9
- https://github.com/umbraco/UmbracoIdentityExtensions/pull/53
- https://github.com/umbraco/UmbracoIdentityExtensions/security/advisories/GHSA-f2rf-8mwf-6jfh
Frequently Asked Questions
What is UmbracoIdentityExtensions?
UmbracoIdentityExtensions is an Umbraco add-on package that enables easy extensibility points for ASP.Net Identity integration.
What does CVE-2023-32312 refer to?
CVE-2023-32312 refers to a vulnerability in UmbracoIdentityExtensions where client secrets are not required, exposing some endpoints to untrusted actors.
What is the severity of CVE-2023-32312?
The severity of CVE-2023-32312 is medium with a CVSS score of 5.3.
How can I fix the vulnerability in UmbracoIdentityExtensions?
To fix the vulnerability in UmbracoIdentityExtensions, update to a version higher than 2.0.0.
Where can I find more information about UmbracoIdentityExtensions and this vulnerability?
You can find more information about UmbracoIdentityExtensions and this vulnerability in the Umbraco CMS documentation and the GitHub repository of UmbracoIdentityExtensions.
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- canonical/umbraco umbraco identity extensibility
- version/umbraco umbraco identity extensibility/2.0.0