All property of the Corporation, including funds, shall be exempt from judicial process of every kind, including, without limitation, attachment, levy, execution and sale by virtue of an execution, and no judgment shall be a lien or charge upon its property or funds; provided, that the provisions of this section shall not apply to or limit the right of obligees of the Corporation to foreclose or otherwise enforce any mortgage or other security of the Corporation or to pursue any remedies for the enforcement of any lien or pledge given by the Corporation upon its revenues, or to the right of the Federal Government to pursue any rights conferred upon it by federal law, any contract, or the provisions of this chapter.