RevoWorks Cloud Client 3.0.91 and earlier contains an incorrect authorization vulnerability. If this vulnerability is exploited, unintended processes may be executed in the sandbox environment. Even if malware is executed in the sandbox environment, it does not compromise the client's local environment. However, information in the sandbox environment may be disclosed to outside or behaviors of the sandbox environment may be violated by tampering registry.

RevoWorks Cloud Client 3.0.91 and earlier contains an incorrect authorization vulnerability. If this vulnerability is exploited, unintended processes may be executed in the sandbox environment. Even if malware is executed in the sandbox environment, it does not compromise the client's local environment. However, information in the sandbox environment may be disclosed to outside or behaviors of the sandbox environment may be violated by tampering registry.

RevoWorks Cloud provided by J's Communication Co., Ltd. is software to build a sandbox environment isolated from a client's local environment. In the sandbox environment, the product provides the function enabling execution of web browsers and detection and blocking of unauthorized processes. However, a defect in this function was found which fails to detect unauthorized processes (CWE-863). J's Communication Co., Ltd. reported this vulnerability to IPA to notify users of its solution through JVN. JPCERT/CC and J's Communication Co., Ltd. coordinated under the Information Security Early Warning Partnership.