Unauthenticated Remote Code Execution via JSONWS in Liferay 6.1 (LPS-88051)
Description
A remote code execution vulnerability exists in Liferay Portal 6.1 that can be exploited via JSON web services (JSONWS).
The JSONWS servlet of Liferay Portal uses flexjson library that allows the instantiation of arbitrary classes and invocation of arbitrary setter methods.
Remediation
Upgrade to the latest version of Liferay Portal.