Spring Security OAuth, versions 2.3 prior to 2.3.3, 2.2 prior to 2.2.2, 2.1 prior to 2.1.2, 2.0 prior to 2.0.15 and older unsupported versions contain a remote code execution vulnerability. A malicious user or attacker can craft an authorization request to the authorization endpoint that can lead to remote code execution when the resource owner is forwarded to the approval endpoint.
This vulnerability exposes applications that meet all of the following requirements:
- Act in the role of an Authorization Server (e.g. @EnableAuthorizationServer)
- Use the default Approval Endpoint
This vulnerability does not expose applications that:
- Act in the role of an Authorization Server but override the default Approval Endpoint
- Act in the role of a Resource Server only (e.g. @EnableResourceServer)
- Act in the role of a Client only (e.g. @EnableOAuthClient)