In Spring Security, versions 6.1.x prior to 6.1.7 and versions 6.2.x prior to 6.2.2, an application is vulnerable to broken access control when it directly uses the AuthenticationTrustResolver.isFullyAuthenticated(Authentication) method.
Specifically, an application is vulnerable if:
* The application uses AuthenticationTrustResolver.isFullyAuthenticated(Authentication) directly and a null authentication parameter is passed to it resulting in an erroneous true return value.
An application is not vulnerable if any of the following is true:
* The application does not use AuthenticationTrustResolver.isFullyAuthenticated(Authentication) directly.
* The application does not pass null to AuthenticationTrustResolver.isFullyAuthenticated
* The application only uses isFullyAuthenticated via Method Security https://docs.spring.io/spring-security/reference/servlet/authorization/method-security.html or HTTP Request Security https://docs.spring.io/spring-security/reference/servlet/authorization/authorize-http-requests.html
The spring-security.xsd file inside the
spring-security-config jar is world writable which means that if it were
extracted it could be written by anyone with access to the file system.
While there are no known exploits, this is an example of “CWE-732:
Incorrect Permission Assignment for Critical Resource” and could result
in an exploit. Users should update to the latest version of Spring
Security to mitigate any future exploits found around this issue.