110 ILCS 945/15
Any holder of Bonds issued pursuant to this Act or a trustee under a trust agreement entered into pursuant to this Act, except to the extent that their rights are restricted by any Bond resolution, may, by any suitable form of legal proceedings, protect and enforce any rights under the laws of this State or granted by the Bond resolution. Such rights include the right to compel the performance of all duties of the Authority required by this Act or the Bond resolution; to enjoin unlawful activities; and in the event of default with respect to the payment of any principal of, premium, if any, and interest on any Bond or in the performance of any covenant or agreement on the part of the Authority in the Bond resolution, to apply to the circuit court to appoint a receiver to administer and operate the Education Loan program or programs, the revenues of which are pledged to the payment of principal of, premium, if any, and interest on such Bonds, with full power to pay, and to provide for payment of, principal of, premium, if any, and interest on such Bonds, and with such powers, subject to the direction of the court, as are permitted by law and are accorded receivers, excluding any power to pledge additional revenues of the Authority to the payment of such principal, premium and interest.
110 ILCS 945/15