APSC-DV-002370 The application must maintain a separate execution domain for each executing process.
All changes in this version
Maps to SC-39 via CCI-002530
Title
The application must maintain a separate execution domain for each executing process.
Control
Review the application documentation, the architecture documentation and interview the application administrator. Identify if the application architecture provides the capability to sandbox executing processes so as to prevent a process in one application domain from sharing another application domain. Ask the application administrator to demonstrate how the application processes are separated. This may be demonstrated by examining the OS processes running on the system and identifying the separate application processes. If the application does not maintain a separate execution domain for each executing process, this is a finding.
Discussion
Applications can maintain separate execution domains for each executing process by assigning each process a separate address space. Each process has a distinct address space so that communication between processes is performed in a manner controlled through the security functions, and one process cannot modify the executing code of another process. Maintaining separate execution domains for executing processes can be achieved, for example, by implementing separate address spaces. An example is a web browser with process isolation that provides tabs that are separate processes using separate address spaces to prevent one tab crashing the entire browser.
Related controls
CCI-002530
Fix
Design and configure applications to maintain a separate execution domain for each executing process.