Improper authorization control for web services In org.springframework.security:spring-security-core
Description
Authorization Bypass in Spring Security When using Spring Security's CAS Proxy ticket authentication a malicious CAS Service could trick another CAS Service into authenticating a proxy ticket that was not associated. This is due to the fact that the proxy ticket authentication uses the information from the HttpServletRequest which is populated based upon untrusted information within the HTTP request.
This means if there are access control restrictions on which CAS services can authenticate to one another, those restrictions can be bypassed.
If users are not using CAS Proxy tickets and not basing access control decisions based upon the CAS Service, then there is no impact to users.
Mitigation
Users of affected versions should apply the following mitigation:
Users of 3.2x should upgrade to 3.2.5 or later
Users of 3.1.x should upgrade to 3.1.7 or later
Credit
This issue was identified by David Ohsie and brought to our attention by the CAS Development team.
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 maven | 3.1.7, 3.2.5 | ||
maven | 3.1.7.release, 3.2.5.release |
Aliases
References