Headline
GHSA-583g-g682-crxf: Micronaut management endpoints vulnerable to drive-by localhost attack
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” 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.
Package
maven io.micronaut:micronaut-http-server (Maven)
Affected versions
< 3.8.3
Patched versions
3.8.3
maven io.micronaut:micronaut-http-server-netty (Maven)
< 3.8.3
3.8.3
maven io.micronaut:micronaut-http-server-tck (Maven)
< 3.8.3
3.8.3
Description
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” 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
- GHSA-583g-g682-crxf
- https://nvd.nist.gov/vuln/detail/CVE-2024-23639
- micronaut-projects/micronaut-core#8642
- micronaut-projects/micronaut-core@01adb21
- https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests
mattmoss published to micronaut-projects/micronaut-core
Feb 8, 2024
Published by the National Vulnerability Database
Feb 9, 2024
Published to the GitHub Advisory Database
Feb 9, 2024
Reviewed
Feb 9, 2024
Last updated
Feb 9, 2024