Vulnerability · Published Jun 9, 2023 · Assigned by GitHub_M
CVE-2023-32312Client secret not mandatory in UmbracoIdentityExtensions
Low 3.7
In plain English
A low-severity information exposure in UmbracoIdentityExtensions from umbraco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| umbraco | UmbracoIdentityExtensions | <= 2.0.0 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/umbraco/UmbracoIdentityExtensions/security/advisories/GHSA-f2rf-8mwf-6jfh x_refsource_CONFIRM
- https://github.com/umbraco/UmbracoIdentityExtensions/pull/53 x_refsource_MISC
- https://github.com/umbraco/UmbracoIdentityExtensions/commit/e792429f9d1fa25c1ba4f7a61d23ee02fedd6dc9 x_refsource_MISC
- https://docs.umbraco.com/umbraco-cms/reference/security/external-login-providers x_refsource_MISC