CVE-2021-32769 Information

Description

Micronaut is a JVM-based full stack Java framework designed for building JVM applications. A path traversal vulnerability exists in versions prior to 2.5.9. With a basic configuration it is possible to access any file from a filesystem using /../../\ in the URL. This occurs because Micronaut does not restrict file access to configured paths. The vulnerability is patched in version 2.5.9. As a workaround do not use in mapping use only which exposes only flat structure of a directory not allowing traversal. If using Linux another workaround is to run micronaut in chroot.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-cjx7-399x-p2rj https://github.com/micronaut-projects/micronaut-core/commit/a0cfeb13bf1ef5d692d16d4a3b91b34b7456bb11

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5