CVE-2014-3527
CriticalSummary
CVE-2014-3527 affects CAS proxy ticket authentication in Spring Security versions 3.1 to 3.2.4. A malicious CAS Service could trick another CAS Service into authenticating a proxy ticket that was not associated, leading to bypassing access control restrictions.
Risk Assessment
Organizations may be exposed to unauthorized access if CAS service access control restrictions are not properly configured. Users not utilizing CAS proxy tickets are not affected by this vulnerability.
Recommendation
It is recommended to review and strengthen the configuration of CAS services and ensure that access control is based on trusted information. Consider updating to a newer version of Spring Security.
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Original NVD description (English source)
When using the CAS Proxy ticket authentication from Spring Security 3.1 to 3.2.4 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.

