Description
A remote code execution vulnerability exists in Liferay Portal 7.2.0 that can be exploited via JSON web services (JSONWS).
The JSONWebServiceActionParametersMap of Liferay Portal allows the instantiation of arbitrary classes and invocation of arbitrary setter methods.
Remediation
Upgrade to the latest version of Liferay Portal.
Liferay Portal 7.2: There is no patch available for Liferay Portal 7.2.0. Instead, users should upgrade to Liferay Portal 7.2 CE GA2 (7.2.1) or later.
Liferay Portal 7.1: Source patch for Liferay Portal 7.1 GA4 (7.1.3) is available on GitHub. Details for working with source patches can be found on the Patching Liferay Portal page.
Liferay Portal 7.0: Source patch for Liferay Portal 7.0 GA7 (7.0.6) is available on GitHub. Details for working with source patches can be found on the Patching Liferay Portal page.
Liferay Portal 6.2: Source patch for Liferay Portal 6.2 GA6 (6.2.5) is available on GitHub. Details for working with source patches can be found on the Patching Liferay Portal page.