CVE-2024-23639
Micronaut management endpoints vulnerable to drive-by localhost attack
Impact
### Summary Enabled but unsecured management endpoints are susceptible to drive-by localhost attacks. While not typical of a production application, these attacks may have more impact on a development environment where such endpoints may be flipped on without much thought. ### Details A malicious/compromised website can make HTTP requests to `localhost`. Normally, such requests would trigger a CORS preflight check which would prevent the request; however, some requests are ["simple"](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests) and do not require a preflight check. These endpoints, if enabled and not secured, are vulnerable to being triggered. ### Impact Production environments typically disable unused endpoints and secure/restrict access to needed endpoints. A more likely victim is the developer in their local development host, who has enabled endpoints without security for the sake of easing development.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | io.micronaut:micronaut-http-server | < 3.8.3 | 3.8.3 |
| maven | io.micronaut:micronaut-http-server-netty | < 3.8.3 | 3.8.3 |
| maven | io.micronaut:micronaut-http-server-tck | < 3.8.3 | 3.8.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Objectcomputing | Micronaut | before 3.8.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests
- https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-583g-g682-crxf
- https://github.com/advisories/GHSA-583g-g682-crxf
- https://nvd.nist.gov/vuln/detail/CVE-2024-23639
- https://github.com/micronaut-projects/micronaut-core/pull/8642
- https://github.com/micronaut-projects/micronaut-core/commit/01adb21e57137caaf7004313d2055c5a78b1f47b