CVE-2025-4427 PoC — Authentication Bypass

Description

Detection for CVE-2025-4427 and CVE-2025-4428

Readme

# CVE-2025-4428 & CVE-2025-4427

CVE-2025-4428 is a post-auth remote code execution vulnerability in EPMM's DeviceFeatureUsageReportQueryRequestValidator. It arises from the unsafe handling of user-supplied input within error messages processed via Spring’s AbstractMessageSource, which allows attacker-controlled EL (Expression Language) injection. A crafted format parameter in the /api/v2/featureusage endpoint results in arbitrary Java code execution, confirmed via command injection (e.g., Runtime.exec()).

CVE-2025-4427 is an authentication bypass caused by improper request handling in EPMM’s route configuration. Routes like /rs/api/v2/featureusage were unintentionally exposed without requiring authentication due to missing <intercept-url> rules in Spring Security configurations. This allows unauthenticated access to the RCE sink, enabling full pre-auth RCE when chained with CVE-2025-4428. However, as noted by watchTowr, this is more accurately described as an order-of-operations flaw, as validator logic executes before authentication checks.

## How does this detection method work?

Version detection template. Matches on anything running:
11.12.0.4 and prior
12.3.0.1 and prior
12.4.0.1 and prior
12.5.0.0 and prior



## How do I run this script?

1. Download Nuclei from [here](https://github.com/projectdiscovery/nuclei)
2. Copy the template to your local system
3. Run the following command: `nuclei -u https://yourHost.com -t template.yaml` 



## References

- https://www.wiz.io/blog/ivanti-epmm-rce-vulnerability-chain-cve-2025-4427-cve-2025-4428


## Disclaimer

Use at your own risk, I will not be responsible for illegal activities you conduct on infrastructure you do not own or have permission to scan.

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