Operating systems must prevent unauthorized and unintended information transfer via shared system resources.

From General Purpose Operating System SRG

Part of SRG-OS-000138-GPOS-00069

Associated with: CCI-001090

SV-71113r1_rule Operating systems must prevent unauthorized and unintended information transfer via shared system resources.

Vulnerability discussion

Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of processes acting on behalf of prior users/roles) from being available to any current users/roles (or current processes) that obtain access to shared system resources (e.g., registers, main memory, hard disks) after those resources have been released back to information systems. The control of information in shared resources is also commonly referred to as object reuse and residual information protection.This requirement generally applies to the design of an information technology product, but it can also apply to the configuration of particular information system components that are, or use, such products. This can be verified by acceptance/validation processes in DoD or other government agencies.There may be shared resources with configurable protections (e.g., files in storage) that may be assessed on specific information system components.

Check content

Verify operating systems prevents unauthorized and unintended information transfer via shared system resources. If it does not, this is a finding.

Fix text

Configure operating systems to prevent unauthorized and unintended information transfer via shared system resources.

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