URL Redirection to Untrusted Site
Spring Security OAuth could be susceptible to an open redirector attack that can leak an authorization code. A malicious user or attacker can craft a request to the authorization endpoint using the authorization code grant type, and specify a manipulated redirection URI via the `redirect_uri` parameter. This can cause the authorization server to redirect the resource owner user-agent to a URI under the control of the attacker with the leaked authorization code. This vulnerability exposes applications that meet all of the following requirements: Act in the role of an Authorization Server (e.g. `@EnableAuthorizationServer`) and uses the `DefaultRedirectResolver` in the `AuthorizationEndpoint`. This vulnerability does not expose applications that: Act in the role of an Authorization Server and uses a different `RedirectResolver` implementation other than DefaultRedirectResolver, act in the role of a Resource Server only (e.g. `@EnableResourceServer`), act in the role of a Client only (e.g. `@EnableOAuthClient`).
Improper Privilege Management
Spring Security OAuth are susceptible to a privilege escalation under certain conditions. A malicious user or attacker can craft a request to the approval endpoint that can modify the previously saved authorization request and lead to a privilege escalation on the subsequent approval.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
When processing authorization requests using the whitelabel views in Spring Security OAuth 2.0.0 to 2.0.9 and 1.0.0 to 1.0.5, the response_type parameter value was executed as Spring SpEL which enabled a malicious user to trigger remote code execution via the crafting of the value for response_type.
URL Redirection to Untrusted Site (Open Redirect)
Spring Security OAuth could be susceptible to an open redirector attack that can leak an authorization code. A malicious user or attacker can craft a request to the authorization endpoint using the authorization code grant type, and specify a manipulated redirection URI via the `redirect_uri` parameter. This can cause the authorization server to redirect the resource owner user-agent to a URI under the control of the attacker with the leaked authorization code.
Code Injection
Spring Security OAuth contains 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.