CVE-2024-41667 OpenAM FreeMarker template injection
Attackers can execute arbitrary code via FreeMarker template injection in OpenAM's custom login URL configuration, requiring administrative access to set the vulnerable template.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-41667?
CVE-2024-41667 is a high-severity code injection vulnerability in OpenIdentityPlatform OpenAM, published on 24 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenAM is an open access management solution. In versions 15.0.3 and prior, the `getCustomLoginUrlTemplate` method in RealmOAuth2ProviderSettings.java is vulnerable to template injection due to its usage of user input. Although the developer intended to implement a custom URL for handling login to override the default OpenAM login, they did not restrict the `CustomLoginUrlTemplate`, allowing it to be set freely. Commit fcb8432aa77d5b2e147624fe954cb150c568e0b8 introduces `TemplateClassResolver.SAFER_RESOLVER` to disable the resolution of commonly exploited classes in FreeMarker template injection. As of time of publication, this fix is expected to be part of version 15.0.4.
Weakness: CWE-94
Which versions are affected by CVE-2024-41667?
2 open source packages ship an affected version, including org.openidentityplatform.openam:openam-oauth2.
| Package | Affected | Fixed in |
|---|---|---|
org.openidentityplatform.openam:openam-oauth2 Maven | All versions | 15.0.4 |
org.openidentityplatform.openam:openam-oauth2 Maven | All versions | 15.0.4 |
How do I fix CVE-2024-41667?
Upgrade org.openidentityplatform.openam:openam-oauth2 to 15.0.4 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2024-41667 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-41667 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-7726-43hg-m23v.