A security vulnerability has been identified in BMC Server Automation (BSA) RSCD Agent on the Linux/Unix platforms. The vulnerability allows unauthorized remote user enumeration on a target server by using the Remote Procedure Call (RPC) API of the RSCD Agent. Windows agents are not affected. The flaw has been confirmed to exist in the following versions of BSA on Unix and Linux platforms: 8.2.x, 8.3.x, 8.5.x, 8.6.x and 8.7.x.