GHSA-583g-g682-crxf
Micronaut management endpoints vulnerable to drive-by localhost attack
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 |
Details
As written in the advisory (Markdown source, shown as plain text).
### 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.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/micronaut-projects/micronaut-core/security/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
- https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests
- https://github.com/micronaut-projects/micronaut-core