VDB
Sign up
MEDIUM5.1

GHSA-583g-g682-crxf

Micronaut management endpoints vulnerable to drive-by localhost attack

Quick fix

GHSA-583g-g682-crxf — io.micronaut:micronaut-http-server: upgrade to the fixed version with the command below.

# pom.xml: bump <version>3.8.3</version> for io.micronaut:micronaut-http-server

Details

### 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.

Are you affected?

Enter the version of the package you're using.

Affected packages

Maven/io.micronaut:micronaut-http-server
Introduced in: 0Fixed in: 3.8.3
Fix# pom.xml: bump <version>3.8.3</version> for io.micronaut:micronaut-http-server
Maven/io.micronaut:micronaut-http-server-netty
Introduced in: 0Fixed in: 3.8.3
Fix# pom.xml: bump <version>3.8.3</version> for io.micronaut:micronaut-http-server-netty
Maven/io.micronaut:micronaut-http-server-tck
Introduced in: 0Fixed in: 3.8.3
Fix# pom.xml: bump <version>3.8.3</version> for io.micronaut:micronaut-http-server-tck

References